Belongs within: Alooideae.
Contains: Aloe series Saponariae, Aloe section Leptoaloe, Aloe subsection Grandes, Aloe subsection Prolongatae, Aloe subsection Magnae.
Aloe is a genus of more or less succulent, spiny-leaved plants native to sub-Saharan Africa and Arabia.
Characters (from Healy & Edgar 1980): Acaulescent or caulescent, more or less succulent perennials, with or without offsets, stems if present simple or branched. Leaves usually sharp-pointed, margins sinuate-dentate, in rosettes. Racemes terminal or lateral, capitate to long-cylindrical, or inflorescence corymbose. Flowers showy, yellowish or reddish, more or less zygomorphic, pedicellate, bracts scarious; segments free or connate below into curved or straight tube, lobes spreading. Stamens 6, hypogynous, included or exserted. Ovary many-seeded. Capsule oblong to sub-globose. Seeds many, often winged.
<==Aloe Linnaeus 1753TS03 (see below for synonymy) |--A. × gigantea [A. ferox × A. vera]J54 |--A. × tomlinsonii [A. ferox × A. speciosa]J54 |--A. sect. AloinellaJ54 | |--A. haworthioides Baker 1886EN20 (see below for synonymy) | | |--A. h. var. haworthioidesEN20 | | `--A. h. var. aurantiaca Perrier 1926 non A. aurantiaca Baker 1892EN20 | |--A. albiflora Guillaumin 1940J54, EN20 [=*Guillauminia albiflora (Guillaumin) Bertrand 1956EN20] | `--A. andringitrensis Perrier 1926J54, EN20 |--A. sect. AnguialoeJ54 | |--A. spicata Linné 1782EN20 (see below for synonymy) | |--A. castanea Schönland 1907J54, EN20 | |--A. recurvifloraJ54 | `--A. vryheidensis Groenewald 1937J54, EN20 [incl. A. dolomitica Groenewald 1938EN20] |--A. sect. EualoeJ54 | | i. s.: A. ballyi Reynolds 1953J54, EN20 | | A. corifoliaJ54 | | A. × cyanea [A. glauca × A. humilis]J54 | | A. × desmetiana [A. humilis × A. variegata]J54 | | A. × insignis [A. drepanophylla × A. humilis]J54 | | A. munchii Christian 1951J54, EN20 | | A. petrophila Pillans 1933J54, EN20 | | A. × spinosissima [A. arborescens × A. humilis]J54 | | A. × weingartii [A. humilis × A. variegata]J54 | | A. ser. AsperifoliaJ54 | | |--A. (ser. *A.) asperifolia Berger 1905J54, EN20 | | |--A. claviflora Burchell 1822J54, EN20 (see below for synonymy) | | |--A. falcata Baker 1880J54, EN20 | | |--A. pachygaster Dinter 1923J54, EN20 | | `--A. viridiflora Reynolds 1937J54, EN20 | | A. ser. EchinataeJ54 | | |--A. (ser. *E.) humilis (Linné) Miller 1771J54, EN20 (see below for synonymy) | | | |--A. h. var. humilisEN20 | | | `--A. h. var. macilenta Baker 1880 (n. d.)EN20 | | |--A. krapohliana Marloth 1908J54, EN20 | | | |--A. k. var. krapohlianaEN20 | | | `--A. k. var. dumoulinii Lavranos 1973EN20 | | `--A. melanacantha Berger 1905 (nom. cons.)J54, EN20 [incl. A. muricata Haworth 1804EN20] | | A. (ser. *Hereroenses) hereroensis Engler 1888J54, EN20 (see below for synonymy) | | A. (ser. *Proliferae) brevifolia Miller 1771J54, EN20 | | |--A. b. var. brevifolia (see below for synonymy)EN20 | | `--A. b. var. depressa (Haworth) Baker 1880 (see below for synonymy)EN20 | | A. ser. SaponariaeJ54 | | A. ser. SerrulataeJ54 | | |--A. (ser. *S.) variegata Linné 1753J54, EN20 (see below for synonymy) | | |--A. dinteri Berger in Dinter 1914J54, EN20 (see below for synonymy) | | `--A. sladeniana Pole-Evans 1920J54, EN20 (see below for synonymy) | | A. ser. SuperpositaeJ54 | | |--A. suprafoliata Pole-Evans 1916EN20 [incl. A. (ser. *S.) suprafoliolata (nom. inv.)J54, EN20] | | |--A. christianii Reynolds 1936J54, EN20 | | |--A. pretoriensis Pole-Evans 1914J54, EN20 | | `--A. thorncroftii Pole-Evans 1917J54, EN20 | | A. (ser. *Virentes) virens Haworth 1804 (n. d.)J54, EN20 | | |--A. v. var. virensEN20 | | `--A. v. var. macilenta Baker 1880 (n. d.) non A. humilis var. macilenta Baker 1880EN20 | |--A. × hertrichii [A. lineata × A. vera]J54 | |--A. ser. RhodacanthaeJ54 | | |--A. (ser. *R.) glauca Miller 1768J54, TS03, EN20 | | | |--A. g. var. glauca (see below for synonymy)EN20 | | | `--A. g. var. spinosior Haworth 1821 (see below for synonymy)EN20 | | |--A. lineata (Aiton) Haworth 1804J54, EN20 [=A. perfoliata var. lineata Aiton 1789EN20; incl. A. dorsallaJ54] | | | |--A. l. var. lineata [incl. A. l. var. glauscescens Haworth 1821, A. l. var. viridis Haworth 1821]EN20 | | | `--A. l. var. muirii (Marloth) Reynolds 1950 [=A. muirii Marloth 1929]EN20 | | |--A. polyphylla Schönland ex Pillans 1934J54, EN20 | | `--A. pratensis Baker 1880J54, EN20 | `--+--+--A. welwitschii Klopper & Smith 2013EN20 (see below for synonymy) | | `--A. sect. LeptoaloeTS03 | `--+--+--A. ser. PaniculataeJ54 | | | |--A. (ser. *P.) striata Haworth 1804J54, TS03, EN20 (see below for synonymy) | | | |--A. karasbergensis Pillans 1928J54, EN20 (see below for synonymy) | | | | |--A. k. ssp. karasbergensisEN20 | | | | `--A. k. ssp. hunsbergensis Van Jaarsveld & Swanepoel 2011EN20 | | | `--A. reynoldsii Letty 1934J54, EN20 | | `--+--+--A. sinkatana Reynolds 1957TS03, EN20 | | | `--A. subsect. GrandesTS03 | | `--+--A. forbesii Balfour 1903TS03, EN20 | | `--+--A. subsect. ProlongataeTS03 | | `--A. scobinifolia Reynolds & Bally 1958TS03, EN20 | `--+--+--A. macra Haworth 1819EN20 (see below for synonymy) | | `--A. occidentalis (Perrier) Newton & Rowley 1997EN20 [=Lomatophyllum occidentale Perrier 1926TS03, EN20] | `--+--A. conifera Perrier 1926TS03, EN20 | | |--A. c. ssp. coniferaEN20 | | `--A. c. ssp. pervagata Castillon 2013EN20 | `--+--A. subsect. MagnaeJ54 | `--+--A. (ser. *Madagascarienses) deltoideodonta Baker 1883J54, TS03, EN20 | | | i. s.: A. d. var. brevifolia Perrier 1926 (see below for synonymy)EN20 | | | A. d. var. candicans Perrier 1926 (see below for synonymy)EN20 | | | A. d. var. fallax Castillon 2006 (see below for synonymy)EN20 | | | A. d. var. intermedia Perrier 1926 (see below for synonymy)EN20 | | | A. d. var. ruffingiana (Rauh & Petignat) Castillon & Castillon 2010 (see below for synonymy)EN20 | | |--A. d. ssp. deltoideodonta (see below for synonymy)EN20 | | `--A. d. ssp. amboahangyensis Rebmann 2009 (see below for synonymy)EN20 | `--A. viguieri Perrier 1927TS03, EN20 |--A. sect. GraminialoeJ54 | |--A. (sect. *G.) myriacantha (Haworth) Schultes & Schultes 1829J54, EN20 (see below for synonymy) | |--A. buchananii Baker 1895J54, EN20 | |--A. minima Baker 1895J54, EN20 (see below for synonymy) | | |--A. m. var. minimaEN20 | | `--A. m. var. blyderivierensis (Groenewald) Reynolds 1947 (see below for synonymy)EN20 | |--A. parviflora Baker 1901J54, EN20 [=Leptoaloe parvifloraJ54] | `--A. saundersiae (Reynolds) Reynolds 1947J54, EN20 (see below for synonymy) |--A. sect. KumaraJ54 [=Kumara Medikus 1786EN20] | `--A. plicatilis (Linné) Burman 1768 (see below for synonymy)EN20 |--A. sect. PachydendronJ54 (see below for synonymy) | |--A. ferox Miller 1768EN20 (see below for synonymy) | |--A. aculeata Pole-Evans 1915J54, EN20 | |--A. africana Miller 1768J54, EN20 (see below for synonymy) | |--A. angelica Pole-Evans 1934J54, EN20 | |--A. excelsa Berger 1906J54, EN20 | | |--A. e. var. excelsaEN20 | | `--A. e. var. breviflora Leach 1977EN20 | |--A. gerstneri Reynolds 1937J54, EN20 | |--A. globuligemma Pole-Evans 1915J54, EN20 | |--A. marlothii Berger 1905J54, EN20 (see below for synonymy) | | | i. s.: A. m. var. bicolor Reynolds 1936 non A. bicolor (Haworth) Schultes 1829EN20 | | |--A. m. ssp. marlothii (see below for synonymy)EN20 | | `--A. m. ssp. orientalis Glen & Hardy 1987EN20 | |--A. petricola Pole-Evans 1917J54, EN20 | |--A. reitzii Reynolds 1937J54, EN20 | | |--A. r. var. reitziiEN20 | | `--A. r. var. vernalis Hardy 1981EN20 | |--A. rupestris Baker in Thiselton-Dyer 1896J54, EN20 (see below for synonymy) | |--A. signoideaJ54 | |--A. spectabilis Reynolds 1927J54, EN20 | `--A. thraskii Baker 1880J54, EN20 [incl. A. candelabrum Engler & Drude 1910 non Berger 1906EN20] `--A. (sect. *Sabaealoe) sabaea Schweinfurth 1894J54, EN20 (see below for synonymy) Aloe incertae sedis: *A. perfoliata Linné 1753 (see below for synonymy)EN20 |--A. p. var. perfoliataEN20 `--A. p. var. serrulata Aiton 1789 (n. d.)EN20 [=A. serrulata (Aiton) Haworth 1804EN20; incl. A. palescensJ54] A. aaata McCoy & Lavranos 2014EN20 A. aageodonta Newton 1993EN20 A. × abhaica Lavranos & Collenette 2000 [A. edentata × A. pseudorubroviolacea]EN20 A. abyssicola Lavranos & Bilaidi 1971EN20 A. acutissima Perrier 1926EN20 |--A. a. var. acutissimaEN20 |--A. a. var. antanimorensis Reynolds 1956EN20 |--A. a. var. fiherenensis Castillon 2007EN20 |--A. a. var. isaloana Castillon 2007EN20 `--A. a. var. itampoloana Castillon 2009 [incl. A. acutissima ssp. itampolensis Rebmann 2008]EN20 A. adigratana Reynolds 1957 (see below for synonymy)EN20 A. ahmarensis Favell et al. 1999EN20 A. alaotrensis Castillon 2017EN20 A. albispina Haworth 1804 (n. d.) [=A. mitriformis var. albispina (Haworth) Berger 1908]EN20 A. albostriata McCoy et al. 2008EN20 A. albovestita Carter & Brandham 1983EN20 A. aldabrensis (Marais) Newton & Rowley 1997 [=Lomatophyllum aldabrense Marais 1975]EN20 A. alexandrei Ellert 2006EN20 A. alfredii Rauh 1990EN20 A. allochroa Newton & Mwadime 2019EN20 A. alooides (Bolus) van Druten 1956 (see below for synonymy)EN20 A. ambigens Chiovenda 1928EN20 A. ambositrae Castillon 2008EN20 A. ambrensis Castillon 2007EN20 A. amudatensis Reynolds 1956EN20 A. amicorum Newton 1991EN20 A. ampefyana Castillo 2008EN20 A. analavelonensis Letsara et al. 2012EN20 A. andersonii Van Jaarsveld & Nel 2014EN20 A. × andrea [A. camperi × A. striata]J54 A. anivoranoensis (Rauh & Hebding) Newton & Rowley 1998 [=Lomatophyllum anivoranoense Rauh & Hebding 1998]EN20 A. ankoberensis Gilbert & Sebsebe 1997EN20 A. anodonta McCoy & Lavranos 2015EN20 A. × anosyana Castillon 2012 [A. divaricata ssp. vaotsohy × A. helenae]EN20 A. ansoultae Rebmann 2016EN20 A. antoetrana Castillon 2011EN20 A. antonii Castillon 2006EN20 A. × antoniniiEN20 A. antsingyensis (Leandri) Newton & Rowley 1997 [=Lomatophyllum antsingyense Leandri 1935]EN20 A. ‘arabica’ Salm-Dyck 1817 non Lamarck 1783EN20 A. arborea Forsskål 1775 (n. d.)EN20 A. archeri Lavranos 1977EN20 A. argenticauda Merxmüller & Giess 1974EN20 A. argentifolia McCoy et al. 2017EN20 A. argyrostachys Lavranos et al. 2007EN20 ‘Agave’ armata Anonymous 1878 (n. d.)EN20 A. armatissima Lavranos & Collenette 2000EN20 A. arneodoi Rebmann 2016EN20 A. aufensis McCoy 2007EN20 A. aurelienii Castillon 2008EN20 A. austroarabica McCoy & Lavranos 2003EN20 A. austrosudanica McCoy 2016EN20 A. babatiensis Christian & Verdoorn 1954EN20 A. ballii Reynolds 1964EN20 |--A. b. var. balliiEN20 `--A. b. var. makurupiniensis Ellert 1998EN20 A. barbara-jeppeae McCoy & Lavranos 2013EN20 A. bargalensis Lavranos 1973EN20 A. beankaensis Letsara et al. 2012EN20 A. belavenokensis (Rauh & Gerold) Newton & Rowley 1997 [=Lomatophyllum belavenokense Rauh & Gerold 1994]EN20 A. belitsakensis Rakotoarisoa 2017EN20 A. bella Rowley 1974 [=A. pulchra Lavranos 1973 non (Aiton) Haworth 1804]EN20 A. bellatula Reynolds 1956 [=Guillauminia bellatula (Reynolds) Heath 1994]EN20 A. benishangulana Sebsebe & Tesfaye 2011EN20 A. berevoana Lavranos 1998 [=A. acutissima var. berevoana (Lavranos) Castillon & Castillon 2010 (nom. inv.)]EN20 A. bergeriana (Dinter) Boatwright & Manning 2014 (see below for synonymy)EN20 A. bernadettae Castillon 2000EN20 A. bernardii Castillon 2011EN20 A. bertemariae Sebsebe & Dioli 2000EN20 A. betsileensis Perrier 1926EN20 A. bicomitum Leach 1977 [incl. A. venusta Reynolds 1959 non (Haworth) Roemer & Schultes 1829]EN20 A. boiteaui Guillaumin 1942 [=Lemeea boiteaui (Guillaumin) Heath 1994]EN20 A. × bortianaJ54 A. boscawenii Christian 1942EN20 A. bosseri Castillon 2000EN20 A. bowiea Schultes & Schultes 1829EN20 (see below for synonymy) A. braamvanwykii Smith & Figueiredo 2012EN20 A. brandhamii Carter 1994EN20 A. breviscapa Reynolds & Bally 1958EN20 A. brunneodentata Lavranos & Collenette 2000EN20 A. brunneostriata Lavranos & Carter 1992EN20 A. bruynsii Forster 2003EN20 A. buchlohii Rauh 1966EN20 A. buhrii Lavranos 1971EN20 A. bukobana Reynolds 1955EN20 A. bulbicaulis Christian 1936 [incl. A. trothae Berger 1905]EN20 A. bullockii Reynolds 1961EN20 A. butiabana Cole & Forrest 2011EN20 A. × buzairiensis Lodé 2011 [A. perryi × A. squarrosa]EN20 A. calcairophila Reynolds 1961 (see below for synonymy)EN20 A. calidophila Reynolds 1954EN20 A. calliantha McCoy & Lavranos 2014EN20 A. camperi Schweinfurth 1894 (see below for synonymy)EN20 A. canarina Carter 1994EN20 A. canis Lane 2003 [incl. A. canii Lane 2002 (nom. inv.)]EN20 A. cannellii Leach 1971EN20 A. capmanambatoensis Rauh & Gerold 2000EN20 A. carnea Carter 1996EN20 A. carolineae Newton 2002EN20 A. castellorum Wood 1983 [incl. A. hijazensis Lavranos & Collenette 2000]EN20 A. castilloniae Castillon 2006EN20 A. cataractarum McCoy & Lavranos 2007EN20 A. catengiana Reynolds 1961EN20 A. cephalophora Lavranos & Collenette 2000EN20 A. challisii Van Jaarsveld 2006EN20 A. charlotteae Castillon 2006EN20 A. cheranganiensis Carter & Brandham 1979EN20 A. chlorantha Lavranos 1973EN20 A. chloroleuca Baker 1877 (n. d.)EN20 A. chrysostachys Lavranos & Newton 1976 [incl. A. meruana Lavranos 1980]EN20 A. cipolinicola (Perrier) Castillon & Castillon 2010 [=Aloe capitata var. cipolinicola Perrier 1926]EN20 A. citrea (Guillaumin) Newton & Rowley 1997 [=Lomatophyllum citreum Guillaumin 1944]EN20 A. citrina Carter & Brandham 1983EN20 A. clarkei Newton 2003EN20 A. classenii Reynolds 1965EN20 A. collenetteae Lavranos 1995EN20 A. collina Carter 1996EN20 A. commelinii Willdenow 1811 (n. d.) [=A. mitriformis var. commelinii (Willdenow) Baker 1880]EN20 A. commixta Berger in Engler 1908 (see below for synonymy)EN20 A. compressa Perrier 1926EN20 |--A. c. var. compressaEN20 |--A. c. var. paucituberculata Lavranos 1998EN20 `--A. c. var. schistophila Perrier 1926EN20 A. condyae Van Jaarsveld & Nel 2012EN20 A. congdonii Carter 1994EN20 A. corallina Verdoorn 1979EN20 A. × corderoyi Berger 1904 (see below for synonymy)EN20 A. craibii Smith 2003EN20 A. cremnophila Reynolds & Bally 1961EN20 A. cryptoflora Reynolds 1965EN20 A. cyrtophylla Lavranos 1998EN20 A. dabenorisana Van Jaarsveld 1982EN20 A. darainensis Castillon 2009EN20 A. debrana Christian 1947 [incl. A. berhana Reynolds 1957]EN20 A. decorsei Perrier 1926EN20 A. decumbens (Reynolds) Van Jaarsveld 2008 (see below for synonymy)EN20 A. decurva Reynolds 1957EN20 A. defalcata Chiovenda 1932 (n. d.)EN20 A. deinacantha McCoy et al. 2008 (see below for synonymy)EN20 A. × delaetii [A. ciliaris × A. succotrina]J54 A. × deleuiliiJ54 A. delicatifolia Castillon 2013EN20 A. delphinensis Rauh 1990EN20 A. descoingsii Reynolds 1958 [=Guillauminia descoingsii (Reynolds) Heath 1994]EN20 |--A. d. ssp. descoingsiiEN20 `--A. d. ssp. augustina Lavranos 1995EN20 A. dewinteri Giess 1973EN20 A. dhufarensis Lavranos 1967EN20 A. diolii Newton 1995EN20 A. disparJ54 A. djiboutiensis McCoy 2007EN20 A. doddsiorum McCoy & Lavranos 2007EN20 A. dorsalis Haworth 1821 (n. d.)EN20 A. downsiana McCoy & Lavranos 2007EN20 A. droseroides Lavranos & McCoy 2003EN20 A. duckeri Christian 1940EN20 A. edouardii Rebmann 2008 [incl. A. fianarantsoae Castillon 2007 (nom. inv.)]EN20 A. elata Carter & Newton in Carter 1994EN20 A. elegantissima McCoy & Lavranos 2008EN20 A. elgonica Bullock 1932EN20 A. elizae Berger 1910 (n. d.)EN20 A. elkerriana Dioli & McCoy 2008EN20 A. eminens Reynolds & Bally 1958 [=Aloidendron eminens (Reynolds & Bally) Klopper & Smith 2013]EN20 A. eremophila Lavranos 1965EN20 A. erensii Christian 1940EN20 A. ericahenriettae McCoy 2007EN20 A. ericetorum Bosser 1968EN20 A. erinacea Hardy 1971 [=A. melanacantha var. erinacea (Hardy) Rowley 1980]EN20 A. erythrophylla Bosser 1968EN20 |--A. e. ssp. erythrophyllaEN20 `--A. e. ssp. major Castillon 2011 nec A. margaritifera var. major Aiton 1789 nec A. picta var. major Willdenow 1799 nec A. expansa var. major Haworth 1804 nec A. glauca var. major Haworth 1812 nec A. acuminata var. major Salm-Dyck 1817 nec A. fasciata var. major Salm-Dyck 1817 nec A. nitida var. major Salm-Dyck 1817 nec A. plicatilis var. major Salm-Dyck 1817 nec A. prolifera var. major Salm-Dyck 1817 nec A. radula var. major Salm-Dyck 1817 nec A. semimargaritifera var. major Salm-Dyck 1817 nec A. glabra var. major Salm-Dyck 1821 nec A. setata var. major (Haworth) Roemer & Schultes 1829 nec A. viscosa var. major (Haworth) Roemer & Schultes 1829 nec A. macrocarpa var. major Berger 1908 nec A. boylei ssp. major Hilliard & Burtt 1985EN20 A. esculenta Leach 1971EN20 A. estevei Rebmann 2008EN20 A. eumassawana Carter et al. 1996EN20 A. eximia Lavranos & McCoy 2006EN20 A. fibrosa Lavranos & Newton 1976EN20 A. fievetii Reynolds 1965EN20 | i. s.: A. f. var. altimatsiatrae (Castillon) Castillon 2009 [=A. altimatsiatrae Castillon 2008]EN20 | A. f. var. ambatofinandrahanensis Castillon 2010EN20 |--A. f. ssp. fievetiiEN20 `--A. f. ssp. johannis-baptistei Castillon 2013EN20 A. fimbrialis Carter 1996EN20 A. flavispina Haworth 1804 (n. d.) [=A. mitriformis var. flavispina (Haworth) Baker 1880]EN20 A. fleurentiniorum Lavranos & Newton 1977 [incl. A. edentata Lavranos & Collenette 2000]EN20 A. fleuretteana Rauh & Gerold 2000EN20 A. flexilifolia Christian 1942EN20 A. florenceae Lavranos & McCoy 2004EN20 A. fontainei Rebmann 2009EN20 A. fouriei Hardy & Glen 1987EN20 A. fragilis Lavranos & Röösli 1994EN20 A. francombei Newton 1994EN20 A. fraskii Croucher 1874 (n. d.)EN20 A. frisii Sebsebe & Gilbert 2000EN20 A. fulleri Lavranos 1967 [incl. A. rigens var. mortimeri Lavranos 1967]EN20 A. gautieri Castillon & Nusbaumer 2014EN20 A. ghibensis Sebsebe & Friis 2011EN20 A. gilbertii Reynolds ex Sebsebe & Brandham 1992EN20 |--A. g. ssp. gilbertiiEN20 `--A. g. ssp. megalacanthoides Gilbert & Sebsebe 1997EN20 A. gillettii Carter 1994EN20 A. glabrescens (Reynolds & Bally) Carter & Brandham 1983 [=A. rigens var. glabrescens Reynolds & Bally 1958]EN20 A. gneissicola (Perrier) Castillon & Castillon 2010 [=A. capitata var. gneissicola Perrier 1926]EN20 A. gossweileri Reynolds 1962EN20 A. gracilicaulis Reynolds & Bally 1958EN20 A. graniticola Rebmann 2013EN20 A. grata Reynolds 1960EN20 A. greenii Green ex Robinson 1875 (n. d.)EN20 A. grisea Carter & Brandham 1983EN20 A. × grusonii [A. humilis × A. schimperi]J54 A. guerrae Reynolds 1960EN20 A. guillaumetii Cremers 1976EN20 A. haggeherensis McCoy & Lavranos 2007EN20 A. hahnii Smith & Klopper 2009EN20 A. hardyi Glen 1987EN20 A. harlana Reynolds 1957EN20 A. haroniensis McCoy et al. 2014EN20 A. hazeliana Reynolds 1959EN20 |--A. h. var. hazelianaEN20 `--A. h. var. howmanii (Reynolds) Carter in Exell et al. 2001 [=A. howmanii Reynolds 1961]EN20 A. helenae Danguy 1929EN20 A. heliderana Lavranos 1973EN20 A. hemmingii Reynolds & Bally 1964EN20 A. hendrickxii Reynolds 1955EN20 A. × henzei [A. grusonii × A. variegata]J54 A. hexapetala Salm-Dyck 1817 (n. d.)EN20 A. heybensis Lavranos 1999EN20 A. hoffmannii Lavranos 2002EN20 A. horrida Haworth 1804 (n. d.)EN20 A. × hoyeri [=Lomataloe hoyeri]J54 A. humbertii Perrier 1931EN20 A. huntleyana Van Jaarsveld & Swanepoel 2012EN20 A. ibitiensis Perrier 1926 (see below for synonymy)EN20 A. ifanadianae Castillon 2008EN20 A. ikiorum Dioli 2012EN20 A. imalotensis Reynolds 1957EN20 |--A. i. var. imalotensis (see below for synonymy)EN20 `--A. i. var. longiracemosa Castillon 2005EN20 A. × imerinensis Bosser 1968 [A. capitata × A. macroclada]EN20 A. inamara Leach 1971EN20 A. inconspicua Plowes 1986EN20 A. inexpectata Lavranos & McCoy 2003EN20 A. × inopinata Smith et al. 2016 [A. arborescens × A. chortolirioides var. chortolirioides]EN20 A. inyangensis Christian 1936EN20 |--A. i. var. inyangensisEN20 `--A. i. var. kimberleyana Carter 1996EN20 A. irafensis Lavranos et al. 2008EN20 A. isaloensis Perrier 1927EN20 A. ithya McCoy & Newton 2014EN20 A. ivakoanyensis Letsara et al. 2012EN20 A. jacksonii Reynolds 1955EN20 A. × jacobsenianaEN20 A. jawiyon Christie et al. in Miller & Morris 2004EN20 A. jeppeae Klopper & Smith 2013 (see below for synonymy)EN20 A. jibisana Newton 2007EN20 A. johannis Castillon 2006EN20 A. johannis-bernardii Castillon 2008EN20 A. johannis-philippei Castillon 2009EN20 A. jucunda Reynolds 1953EN20 A. juddii Van Jaarsveld 2008 [=Aloiampelos juddii (Van Jaarsveld) Klopper & Smith 2013]EN20 A. juvenna Brandham & Carter 1979EN20 A. kahinii McCoy & Lavranos 2008EN20 A. kamnelii Van Jaarsveld 2009EN20 A. kaokoensis Van Jaarsveld et al. 2006EN20 A. × keayi Reynolds 1963 [A. buettneri × A. schweinfurthii]EN20 A. kefaensis Gilbert & Sebsebe 1997EN20 A. ketabrowniorum Newton 1994EN20 A. kilifiensis Christian 1942EN20 A. knersvlakensis Marais 2011EN20 A. koenenii Lavranos & Koch 2006EN20 A. komaggasensis Kritzinger & Van Jaarsveld 1985 (see below for synonymy)EN20 A. kouebokkeveldensis Van Jaarsveld & Low 2004EN20 A. kulalensis Newton & Beentje 1990EN20 A. kwasimbana McCoy & Lavranos 2007EN20 A. labworana (Reynolds) Carter 1994 [=A. schweinfurthii var. labworana Reynolds 1956]EN20 |--A. l. ssp. labworanaEN20 `--A. l. ssp. longifolia Cole & Forrest 2017 non A. lingua var. longifolia Haworth 1804EN20 A. × laetococcineaJ54 A. lanata McCoy & Lavranos 2007EN20 A. latens McCoy & Lavranos 2007EN20 A. lavranosii Reynolds 1964 (see below for synonymy)EN20 A. leachii Reynolds 1965 [incl. A. nordaliae Wabuyele 2006]EN20 A. leandrii Bosser 1968EN20 A. leedalii Carter 1994EN20 A. lensayuensis Lavranos & Newton 1976EN20 A. lepida Leach 1974EN20 A. liliputana Van Jaarsveld & Harrower 2014EN20 A. lindenii Lavranos 1997EN20 A. lolwensis Newton 2001EN20 A. luapulana Leach 1972EN20 A. lucile-allorgeae Rauh 1998EN20 A. lukeana Cole 2015EN20 A. luntii Baker 1894EN20 A. × luteobrunea [A. ferox × A. principis]J54 A. macleayi Reynolds 1955EN20 A. mahraensis Lavranos et al. 2008EN20 A. makayana Lavranos et al. 2008EN20 A. manandonae Castillon & Castillon 2008EN20 A. mandatoensis Castillon 2003EN20 A. mandrarensis Castillon 2012EN20 A. mangeaensis Newton & Carter 2017EN20 A. maningoryensis Castillon 2017EN20 A. martialii Castillon 2010EN20 A. massawana Reynolds 1959EN20 |--A. m. ssp. massawana [incl. A. kirkii Baker 1894]EN20 `--A. m. ssp. sakoankenke (Castillon) Castillon 2009 [=A. sakoankenke Castillon 2004]EN20 A. mawii Christian 1940EN20 A. mccoyi Lavranos & Mies 2001EN20 A. mcloughlinii Christian 1951 [incl. A. maclaughlinii (nom. inv.)]EN20 A. medishiana Reynolds & Bally 1958EN20 A. megalocarpa Lavranos 1998EN20 A. × menachensis (Schweinfurth) Blatter 1936 (see below for synonymy)EN20 A. mendesii Reynolds 1964EN20 A. merlotiiTS03 A. meyeri Van Jaarsveld 1981 [incl. A. richtersveldensis Venter & Beukes 1982]EN20 A. microdonta Chiovenda 1928EN20 A. millotii Reynolds 1956EN20 A. milne-redheadii Christian 1940EN20 A. miskatana Carter 2006EN20 A. mitsioana Castillon 2006EN20 A. mkushiana McCoy 2017EN20 A. mocamedensis Van Jaarsveld 2012EN20 A. modesta Reynolds 1956EN20 A. molederana Lavranos & Glen 1989EN20 A. momccoyae McCoy & Lavranos 2015EN20 A. monotropa Verdoorn 1961EN20 A. monticola Reynolds 1957EN20 A. montis-nabro Orlando & El Azzouni 2014EN20 A. morijensis Carter & Brandham 1979EN20 |--A. m. var. morijensisEN20 `--A. m. var. ojonokae Uleh 2015EN20 A. mossurilensis Ellert 2010EN20 A. mottramiana Castillon 2011EN20 A. mubendiensis Christian 1942EN20 A. multicolor Newton 1994EN20 A. murina Newton 1992EN20 A. musapana Reynolds 1964EN20 A. mzimbana Christian 1941EN20 A. namibensis Giess 1970EN20 A. namorokaensis (Rauh) Newton & Rowley 1998 [=Lomatophyllum namorokaense Rauh 1998]EN20 A. neilcrouchii Klopper & Smith 2010EN20 A. neoqaharensis McCoy 2007EN20 A. neosteudneri Lavranos & McCoy 2007EN20 A. newtonii Castillon 2009EN20 A. ngongensis Christian 1942EN20 A. nicholsii Smith & Crouch 2010EN20 A. niebuhriana Lavranos 1965EN20 A. niensiensis Newton 2015EN20 A. nigrimontana McCoy & Lavranos 2015EN20 A. ‘nobilis’ Baker 1880 non Haworth 1812EN20 |--A. n. var. nobilisEN20 `--A. n. var. densifolia Baker 1880 (n. d.)EN20 A. × notabilis [A. brevifolia × A. mitriformis]EN20 A. nugalensis Thulin 2012EN20 A. nyeriensis Christian ex Verdoorn 1952 [incl. A. ngobitensis Reynolds 1953]EN20 A. nyikaensis McCoy 2017EN20 A. ‘obscura’ Berger ex Schönland 1905 nec Miller 1768 nec A. saponaria var. obscura Haworth 1804 nec A. obscura Willdenow 1811EN20 A. officinalis Forsskål 1775 (see below for synonymy)EN20 A. oligophylla Baker 1883 [=Lomatophyllum oligophyllum (Baker) Perrier 1926]EN20 A. omavandae Van Jaarsveld 2004EN20 A. omoana McCoy & Lavranos 2007EN20 A. orientalis (Perrier) Newton & Rowley 1997 (see below for synonymy)EN20 A. orlandoi Lavranos 2006 [=A. orlandi]EN20 A. ortholopha Christian & Milne-Redhead 1933EN20 A. pachydactylos McCoy & Lavranos 2007EN20 A. × pallancaeEN20 A. pallescens Haworth 1821 (n. d.) [=A. serrulata var. pallescens (Haworth) Baker 1880]EN20 A. × panormitanaEN20 A. parallelifolia Perrier 1926EN20 A. parvicapsula Lavranos & Collenette 2000EN20 A. parvicoma Lavranos & Collenette 2000EN20 A. parvidens Gilbert & Sebsebe 1992EN20 A. patersonii Mathew 1978EN20 A. pavelkae Van Jaarsveld et al. 2008EN20 A. peckii Bally & Verdoorn 1956EN20 A. pembana Newton 1998 [=Lomatophyllum pembanum (Newton) Rauh 1998]EN20 A. perdita Ellert 2010EN20 A. perrieri Reynolds 1956 [=A. parvula Perrier 1826 non Berger in Engler 1908]EN20 A. peyrierasii Cremers 1976 [=Lomatophyllum peyrierasii (Cremers) Rauh 1998]EN20 A. × philippei Castillon 2005EN20 A. pictifolia Hardy 1976EN20 A. pienaarii Pole-Evans 1915EN20 A. plowesii Reynolds 1964EN20 A. porphyrostachys Lavranos & Collenette 2000EN20 A. powysiorum Newton & Beentje 1990EN20 A. praetermissa McCoy & Lavranos 2002EN20 A. × principisEN20 [=Pachydendron principisJ54; incl. A. salm-dyckianaEN20] A. prinslooi Verdoorn & Hardy 1965EN20 A. procera Leach 1974EN20 A. pronkii Lavranos et al. 2006EN20 A. prostrata (Perrier) Newton & Rowley 1997 (see below for synonymy)EN20 A. pseudoparvula Castillon 2004EN20 A. pseudopictaJ54 A. pseudorubroviolacea Lavranos & Collenette 2000EN20 A. pubescens Reynolds 1957EN20 A. pulcherrima Gilbert & Sebsebe 1997EN20 A. purpurea Lamarck 1783EN20 (see below for synonymy) A. pustuligemma Newton 1994EN20 A. × qaharensis Lavranos & Collenette 2000 [A. fleurentiniorum × A. woodii]EN20 A. rapanarivoi Castillon 2009EN20 A. rauhii Reynolds 1963 [=Guillauminia rauhii (Reynolds) Heath 1994]EN20 A. rebmannii Lavranos 2002EN20 A. rendilliorum Newton 2006EN20 A. retrospiciens Reynolds & Bally 1958 [incl. A. ruspoliana var. dracaeniformis Berger 1908]EN20 A. rhodesiana Rendle 1911 [incl. A. eylesii Christian 1936]EN20 A. ribauensis McCoy et al. 2014EN20 A. richardsiae Reynolds 1964EN20 A. richaudii Rebmann 2008EN20 A. rigens Reynolds & Bally 1958EN20 A. rivierei Lavranos & Newton 1977EN20 A. × robertiiJ54 A. rodolphei Castillon 2008EN20 A. roeoeslii Lavranos & McCoy 2005EN20 A. rosea (Perrier) Newton & Rowley 1997 (see below for synonymy)EN20 A. rossii Todaro 1891 (n. d.)EN20 A. rouxii Van Jaarsveld 2016EN20 A. rubescens De Candolle 1799 (n. d.)EN20 A. rubrodonta McCoy & Lavranos 2008EN20 A. rugosifolia Gilbert & Sebsebe 1992 (see below for synonymy)EN20 A. rugosquamosa (Perrier) Castillon & Castillon 2010 [=A. compressa var. rugosquamosa Perrier 1926]EN20 A. rulkensii McCoy & Baptista 2016EN20 A. rupicola Reynolds 1960EN20 A. ruvuensis McCoy & Lavranos 2007EN20 A. sanguinalis Awale & Barkworth 2019EN20 A. saudiarabica McCoy 2007EN20 A. scabrifolia Newton & Lavranos 1990EN20 A. schelpei Reynolds 1961EN20 A. schilliana Newton & Rowley 1997 [=Lomatophyllum viviparum Perrier 1926]EN20 A. × schimperi Todaro 1878 [A. maculata × A. striata; incl. A. schoenlandii Baker 1902]EN20 A. schomeri Rauh 1966EN20 A. scorpioides Leach 1974EN20 A. seibanica Orlando & El Azzouni 2010EN20 A. seretii De Wildeman 1921EN20 A. sergoitensis Newton 2018EN20 A. serriyensis Lavranos 1965EN20 A. shadensis Lavranos & Collenette 2000EN20 A. sharoniae Crouch & Smith 2011 (see below for synonymy)EN20 A. sheilae Lavranos 1985EN20 A. silicicola Perrier 1926EN20 A. sinana Reynolds 1957EN20 A. socialis (Perrier) Newton & Rowley 1997 [=Lomatophyllum sociale Perrier 1926]EN20 A. soutpansbergensis Verdoorn 1962EN20 A. spinitriaggregata Castillon 2011EN20 A. spinulosa Salm-Dyck 1822 (n. d.) [=A. mitriformis var. spinulosa (Salm-Dyck) Baker 1880]EN20 A. springatei-neumannii Newton 2011EN20 A. stolonifera Haworth 1804EN20 A. straussii Berger 1912 (n. d.)EN20 A. suarezensis Perrier 1926EN20 A. subspicata (Baker) Boatwright & Manning 2013 (see below for synonymy)EN20 A. suzannae Decary 1921 [=*Aloestrela suzannae (Decary) Molteno & Smith 2019]EN20 A. swynnertonii Rendle 1911 [incl. A. chimanimaniensis Christian 1936, A. melsetterensis Christian 1938]EN20 A. tartarensis McCoy & Lavranos 2007EN20 A. tauri Leach 1968EN20 A. tegetiformis Newton 2011EN20 A. teissieri Lavranos 2002 [incl. A. andohahelensis Castillon 2002]EN20 A. tenuifolia Lamarck 1783 (n. d.)EN20 A. termetophila De Wildeman 1921EN20 A. tewoldei Gilbert & Sebsebe 1997EN20 A. × todariJ54 |--A. t. var. todariJ54 `--A. t var. × praecoxJ54 A. tongaensis Van Jaarsveld 2011 [=Aloidendron tongaense (Van Jaarsveld) Klopper & Smith 2013]EN20 A. tormentorii (Marais) Newton & Rowley 1997 [=Lomatophyllum tormentorii Marais 1975]EN20 A. tororoana Reynolds 1953EN20 A. torrei Verdoorn & Christian 1946EN20 A. trachyticola (Perrier) Reynolds 1957 [=A. capitata var. trachyticola Perrier 1926]EN20 |--A. t. var. trachyticolaEN20 `--A. t. var. multifolia Castillon 2004EN20 A. trigonantha Leach 1971EN20 A. tsitongambarikana Castillon & Castillon 2016EN20 A. tugenensis Newton & Lavranos 1990 [=A. archeri var. tugenensis (Newton & Lavranos) Wabuyele 2006]EN20 A. turkanensis Christian 1942EN20 A. tweediae Christian 1942 [=A. secundiflora var. tweedieae (Christian) Wabuyele 2006]EN20 A. × ucriae Terraciano 1897 (n. d.) [=A. arborescens var. ucriae (Terraciano) Berger 1908]EN20 A. ukambensis Reynolds 1956EN20 A. uncinata Newton & Wabuyele 2018EN20 A. vallaris Leach 1974EN20 A. vanrooyenii Smith & Crouch 2006EN20 A. vaombe Decorse & Poisson 1912EN20 |--A. v. var. vaombeEN20 `--A. v. var. poissonii Decary 1921EN20 A. vaotsanda Decary 1921EN20 A. varimaculata McCoy 2016EN20 A. versicolor Guillaumin 1950EN20 |--A. v. ssp. versicolorEN20 `--A. v. ssp. steffanieana (Rauh) Castillon & Castillon 2010 [=A. steffanieana Rauh 2000]EN20 A. veseyi Reynolds 1959 [incl. A. enotata Leach 1972]EN20 A. virginieae Castillon 2012EN20 A. wanalensis Cole & Forrest 2011EN20 A. welmelensis Sebsebe & Nordal 2011EN20 A. weloensis Sebsebe 2011EN20 A. werneri Castillon 2008EN20 A. whitcombei Lavranos 1995EN20 A. wildii (Reynolds) Reynolds 1964 [=A. torrei var. wildii Reynolds 1961]EN20 A. wilsonii Reynolds 1956EN20 A. wollastonii Rendle 1908 (see below for synonymy)EN20 A. woodii Lavranos & Collenette 2000EN20 A. wrefordii Reynolds 1956EN20 A. xanthacantha Willdenow 1811 (n. d.) [=A. mitriformis var. xanthacantha (Willdenow) Baker 1880]EN20 A. yavellana Reynolds 1954EN20 A. yemenica Wood 1983EN20 A. zakamisyi McCoy & Lavranos 2007EN20 A. zombitsiensis Rauh & Teissier 2000EN20 |--A. z. ssp. zombitsiensis [incl. A. sakarahensis Lavranos & Teissier 2004]EN20 `--A. z. ssp. pallida (Rauh & Mangelsdorff) Newton & Eggli 2018 (see below for synonymy)EN20 A. zubb McCoy & Lavranos 2015EN20 Nomen invalidum: Aloe ankabeensis Hort. Sterk 1988EN20
Aloe Linnaeus 1753TS03 [=Aloe sect. Grandiflorae Haworth 1804TS03; incl. Agriodendron Endlicher 1836EN20, Allemptauminia Cumming 1974 (nom. inv.)EN20, Alleptauminia Heath 1993EN20, Aloestrela Molteno & Smith 2019EN20, Aloiampaloe Rowley 2014EN20, Alolirion Rowley 1973EN20, Altulista Rowley 2014EN20, Ariodendron Meisner 1842EN20, Bowiea Haworth 1824 (nom. rej.) non Harvey ex Hooker 1867EN20, Busipho Salisbury 1866EN20, Chamaealoe Berger 1905EN20, Chortolirion Berger 1908EN20, Gonialoe Boatwright & Manning 2014EN20, Gonimara Smith & Molteno 2018EN20, Guillauminia Bertrand 1956EN20, Kumalista Rowley 2014EN20, Lemeea Heath 1993EN20, Leptaloe Stapf 1933EN20, Lomataloe Guillaumin 1931EN20, Lomatophyllum Willdenow 1811EN20, Phylloma Ker Gawler 1813EN20, Ptyas Salisbury 1866EN20, Rhipidodendron Sprengel 1817 (nom. inv.) non Stein 1878 (ICZN)EN20, Rhipidodendrum Willdenow 1811EN20, Succosaria Rafinesque 1840EN20]
Aloe sect. PachydendronJ54 [=Pachidendron Haworth 1824EN20, Pachydendron Dumortier 1829 (nom. inv.) non Cuif 1975 (ICZN)EN20]
Aloe adigratana Reynolds 1957 [=A. camperi ssp. adigratana (Reynolds) Fikre 2006; incl. A. abyssinica Hooker 1900 nec Lamarck 1783 nec Salm-Dyck 1817, A. eru var. hookeri Berger 1908]EN20
Aloe africana Miller 1768J54, EN20 [=A. perfoliata var. africana Aiton 1789EN20, Pachidendron africanum (Miller) Haworth 1821EN20; incl. Aloe angustifolia Haworth 1819 nec A. lingua var. angustifolia Aiton 1789 nec A. linguaefolia var. angustifolia Willdenow 1809 nec A. acinacifolia var. angustifolia Salm-Dyck 1817EN20, P. angustifolium (Haworth) Haworth 1821EN20, A. africana var. angustior Haworth 1819 non A. mitriformis var. angustior Lamarck 1784EN20, P. africanum var. angustum Haworth 1821EN20, A. bolusii Baker 1880EN20, A. africana var. latifolia Haworth 1819 nec A. lingua var. latifolia Haworth 1804 nec A. saponaria var. latifolia Haworth 1804 nec A. linguaefolia var. latifolia Willdenow 1809EN20, Pachidendron africanum var. latum Haworth 1821EN20, A. pseudoafricana Salm-Dyck 1817EN20]
Aloe alooides (Bolus) van Druten 1956 [=Urginea alooides Bolus 1881, Notosceptrum alooides (Bolus) Bentham 1883; incl. Aloe recurvifolia Groenewald 1935]EN20
Aloe bergeriana (Dinter) Boatwright & Manning 2014 [=Chortolirion bergerianum Dinter 1914; incl. A. barendii Klopper & Smith 2013, Haworthia saundersiae Baker 1891 (nom. inv.), H. stenophylla Baker 1891, Chortolirion stenophyllum (Baker) Berger 1908, H. tenuifolia Engler 1888, Aloe tenuifolia (Engler) Boatwright & Manning 2013 non Lamarck 1783, Chortolirion tenuifolium (Engler) Berger 1908]EN20
Aloe bowiea Schultes & Schultes 1829EN20 [incl. *Bowiea africana Haworth 1824EN20, *Chamaealoe africana (Haworth) Berger 1905EN20, Aloe boureaJ54]
Aloe brevifolia Miller 1771 var. brevifolia [incl. A. prolifera var. major Salm-Dyck 1817 nec A. margaritifera var. major Aiton 1789 nec A. picta var. major Willdenow 1799 nec A. expansa var. major Haworth 1804 nec A. glauca var. major Haworth 1812 nec A. acuminata var. major Salm-Dyck 1817 nec A. fasciata var. major Salm-Dyck 1817 nec A. nitida var. major Salm-Dyck 1817 nec A. plicatilis var. major Salm-Dyck 1817, A. postgenita Schultes & Schultes 1830, A. brevifolia var. postgenita (Schultes & Schultes) Baker 1880, A. prolifera Haworth 1804]EN20
Aloe brevifolia var. depressa (Haworth) Baker 1880 [=Aloe depressa Haworth 1804; incl. A. serra De Candolle 1799, A. brevifolia var. serra (De Candolle) Berger 1908]EN20
Aloe calcairophila Reynolds 1961 [=Guillauminia calcairophila (Reynolds) Heath 1994, A. calcairophylla (nom. inv.)]EN20
Aloe camperi Schweinfurth 1894 [incl. A. abyssinica Salm-Dyck 1817 non Lamarck 1783, A. albopicta Hort. ex Berger 1908 non A. percrassa var. albopicta Schweinfurth 1894, A. eru var. cornuta Berger 1908, A. eru f. erecta Hort. ex Berger 1908 non A. erecta (Haworth) Salm-Dyck 1829, A. eru Berger 1908, A. eru f. glauca Hort. ex Berger 1908 non A. glauca Miller 1768, A. eru f. maculata Hort. ex Berger 1908 nec A. maculata Allioni 1773 nec A. maculata Forsskål 1775 nec A. maculata Thunberg 1785, A. eru f. parvipunctata Hort. ex Berger 1908 nec A. nitida var. parvipunctata Salm-Dyck 1821 nec A. subverrucosa var. parvipunctata Salm-Dyck 1821, A. spicata Baker 1896 non Linné 1782]EN20
Aloe claviflora Burchell 1822J54, EN20 [incl. A. decora Schönland 1905EN20, A. schlechteri Schönland 1903EN20]
Aloe commixta Berger in Engler 1908 [=Aloiampelos commixta (Berger) Klopper & Smith 2013, Aloe gracilis Baker 1880 non Hawroth 1825]EN20
Aloe × corderoyi Berger 1904 [=Gonimara corderoyi (Berger) Smith & Molteno 2018, Kumalista corderoyi (Berger) Rowley 2014; A. plicatilis × A. variegata]EN20
Aloe decumbens (Reynolds) Van Jaarsveld 2008 [=Aloe gracilis var. decumbens Reynolds 1950, Aloiampelos decumbens (Reynolds) Klopper & Smith 2013]EN20
Aloe deinacantha McCoy et al. 2008 [=Aloe divaricata ssp. deinacantha (McCoy et al.) Castillon & Castillon 2010 (nom. inv.), A. divaricata var. deinacantha (McCoy et al.) Castillon & Castillon 2010 (nom. inv.)]EN20
Aloe deltoideodonta ssp. amboahangyensis Rebmann 2009 [=A. horombensis ssp. amboahangyensis (Rebmann) Castillon 2014]EN20
Aloe deltoideodonta var. brevifolia Perrier 1926 nec A. brevifolia Miller 1771 nec A. perfoliata var. brevifolia Aiton 1789 nec A. glabra var. brevifolia Salm-Dyck 1817 nec A. lingua var. brevifolia Salm-Dyck 1817 [=A. deltoideodonta ssp. brevifolia (Perrier) Rebmann 2009; incl. A. horombensis Castillon 2014 (nom. illeg.)]EN20
Aloe deltoideodonta var. candicans Perrier 1926 [=A. candicans (Perrier) Castillon & Castillon 2010 (nom. inv.) non (Haworth) Roemer & Schultes 1829, A. deltoideodonta ssp. candicans (Perrier) Rebmann 2009, A. horombensis ssp. candicans (Perrier) Castillon 2014]EN20
Aloe deltoideodonta Baker 1883 ssp. deltoideodonta [incl. A. madecassa Perrier 1926, A. madecassa var. lutea Guillaumin 1955 nec A. hereroensis var. lutea Berger 1908 nec A. barteri var. lutea Chevalier 1913 nec A. wickensii var. lutea Reynolds 1935, A. deltoideodonta var. typica Perrier 1926 (nom. inv.)]EN20
Aloe deltoideodonta var. fallax Castillon 2006 non A. obliqua var. fallax (Haworth) Roemer & Schultes 1829 [=A. candicans var. fallax (Castillon) Castillon & Castillon 2010 (nom. inv.), A. deltoideodonta ssp. fallax (Castillon) Rebmann 2009 (nom. inv.), A. horombensis ssp. fallax (Castillon) Castillon 2014]EN20
Aloe deltoideodonta var. intermedia Perrier 1926 [=A. intermedia (Perrier) Reynolds 1957 non Haworth 1804, A. subacutissima Rowley 1973]EN20
Aloe deltoideodonta var. ruffingiana (Rauh & Petignat) Castillon & Castillon 2010 [=A. ruffingiana Rauh & Petignat 1999, A. horombensis ssp. ruffingiana (Rauh & Petignat) Castillon 2014; incl. A. deltoideodonta ssp. esomonyensis Rebmann 2009]EN20
Aloe dinteri Berger in Dinter 1914J54, EN20 [=Gonialoe dinteri (Berger) Boatwright & Manning 2014EN20, Tulista dinteri (Berger) Rowley 2014EN20]
Aloe ferox Miller 1768EN20 [=*Agriodendron feroxEN20, *Ariodendron feroxEN20, *Pachidendron ferox (Miller) Haworth 1821J54, EN20; incl. Aloe candelabrum Berger 1906EN20, Aloe ferox var. erythrocarpa Berger 1908EN20, Aloe perfoliata var. ferox Aiton 1789EN20, Aloe galpinii Baker 1901EN20, Aloe ferox var. galpinii (Baker) Reynolds 1937EN20, Aloe ferox var. hanburyi Baker 1896EN20, Aloe ferox var. incurvata Baker 1880EN20, Aloe perfoliata Thunberg 1785 non Linné 1753EN20, Aloe pseudoferox Salm-Dyck 1817EN20, Pachidendron pseudoferox (Salm-Dyck) Haworth 1821EN20, Aloe socotorina Masson 1773EN20, Aloe subferox Sprengel 1826EN20, Aloe ferox var. subferox (Sprengel) Baker 1880EN20, Aloe supralaevis Haworth 1804EN20, Pachidendron supralaeve (Haworth) Haworth 1821EN20]
Aloe glauca Miller 1768 var. glauca [incl. A. glauca var. elatior Salm-Dyck 1817 non A. mitriformis var. elatior Haworth 1804, A. perfoliata var. glauca Aiton 1789, A. glauca var. humilior Salm-Dyck 1817 non A. mitriformis var. humilior Willdenow 1811, A. glauca var. major Haworth 1812 nec A. margaritifera var. major Aiton 1789 nec A. picta var. major Willdenow 1799 nec A. expansa var. major Haworth 1804, A. glauca var. minor Haworth 1812 nec A. margaritifera var. minor Aiton 1789 nec A. picta var. minor Willdenow 1799, A. rhodacantha De Candolle 1800]EN20
Aloe glauca var. spinosior Haworth 1821 non A. mitriformis var. spinosior Haworth 1804 [incl. A. muricata Schultes 1809 non Haworth 1804, A. glauca var. muricata (Schultes) Baker 1880]EN20
Aloe haworthioides Baker 1886EN20 [=*Aloinella haworthioides (Baker) Lemée 1939 (nom. inv.)J54, EN20, *Lemeea haworthioides (Baker) Heath 1993EN20]
Aloe hereroensis Engler 1888J54, EN20 [incl. A. hereroensis var. lutea Berger 1908EN20, A. orpeniae Schönland 1905EN20, A. hereroensis var. orpeniae (Schönland) Berger 1908EN20]
Aloe humilis (Linné) Miller 1771J54, EN20 [=A. perfoliata var. humilis Linné 1753EN20, Catevala humilis (Linné) Medikus 1786EN20; incl. A. suberecta var. acuminata Haworth 1804EN20, A. acuminata (Haworth) Baker 1880EN20, A. humilis var. acuminataJ54, A. humilis var. candollei Baker 1880EN20, A. echinata Willdenow 1809EN20, A. humilis var. echinata (Willdenow) Baker 1896EN20, A. humilis var. incurva Haworth 1804EN20, A. incurva (Haworth) Haworth 1812EN20, A. acuminata var. major Salm-Dyck 1817 nec A. margaritifera var. major Aiton 1789 nec A. picta var. major Willdenow 1799 nec A. expansa var. major Haworth 1804 nec A. glauca var. major Haworth 1812EN20, A. humilis subvar. minor Salm-Dyck 1837 nec A. margaritifera var. minor Aiton 1789 nec A. picta var. minor Willdenow 1799 nec A. glauca var. minor Haworth 1812 nec A. nitida var. minor Salm-Dyck 1817 nec A. radula var. minor Salm-Dyck 1817 nec A. semimargaritifera var. minor Salm-Dyck 1817 nec A. viscosa var. minor (Haworth) Roemer & Schultes 1829 nec A. fasciata var. minor Salm-Dyck 1834EN20, A. humilis var. semiguttata Haworth 1821EN20, A. suberecta Haworth 1804EN20, A. humilis var. suberecta (Haworth) Baker 1896EN20, A. subtuberculata Haworth 1825EN20, A. humilis var. subtuberculata (Haworth) Baker 1896EN20, A. tuberculata Haworth 1804EN20, A. verrucosospinosa Allioni 1773EN20]
Aloe ibitiensis Perrier 1926 [incl. A. cremersii Lavranos 1974, A. cyrillei Castillon 2004, A. ibityensis (nom. inv.), A. saronarae Lavranos & McCoy 2006]EN20
Aloe imalotensis Reynolds 1957 var. imalotensis [incl. A. deltoideodonta var. contigua Perrier 1926, A. contigua (Perrier) Reynolds 1958, A. deltoideodonta f. latifolia Perrier 1938 (nom. inv.) nec A. lingua var. latifolia Haworth 1804 nec A. saponaria var. latifolia Haworth 1804 nec A. linguaefolia var. latifolia Willdenow 1809 nec A. africana var. latifolia Haworth 1819 nec A. nigricans var. latifolia Salm-Dyck 1821 nec A. verrucosa var. latifolia Salm-Dyck 1821 nec A. lapaixii var. latifolia Radl 1896, A. deltoideodonta f. longifolia Perrier 1938 (nom. inv.) nec A. lingua var. longifolia Haworth 1804 nec A. labworana ssp. longifolia Cole & Forrest 2017, A. deltoideodonta subf. variegata Boiteau ex Jacobsen 1954 (nom. inv.) nec A. variegata Linné 1753 nec A. variegata Forsskål 1775]EN20
Aloe jeppeae Klopper & Smith 2013 [=A. aetivalis Boatwright & Manning 2013 (nom. illeg.), Chortolirion latifolium Zonneveld & Fritz 2010]EN20
Aloe karasbergensis Pillans 1928J54, EN20 [=A. striata ssp. karasbergensis (Pillans) Glen & Hardy 1987EN20]
Aloe komaggasensis Kritzinger & Van Jaarsveld 1985 [=A. striata ssp. komaggasensis (Kritzinger & Van Jaarsveld) Glen & Hardy 1987]EN20
Aloe lavranosii Reynolds 1964 [incl. A. doei Lavranos 1965, A. doei var. lavranosii Marnier-Lapostolle 1970, A. splendens Lavranos 1965]EN20
Aloe macra Haworth 1819EN20 [=Lomatophyllum macrum (Haworth) Salm-Dyck ex Schultes & Schultes 1829TS03, EN20, Phylloma macrum (Haworth) Sweet 1827EN20]
Aloe marlothii Berger 1905J54, EN20 [incl. A. ferox Berger 1908 non Miller 1768EN20, A. ferox var. xanthostachys Berger 1908EN20]
Aloe marlothii Berger 1905 ssp. marlothii [incl. A. supralaevis var. hanburyi Baker 1896 non Aloe ferox var. hanburyi Baker 1896]EN20
Aloe × menachensis (Schweinfurth) Blatter 1936 [=A. percrassa var. menachensis Schweinfurth 1894, A. trichosantha var. menachensis (Schweinfurth) Berger 1908; A. tomentosa × A. vacillans] EN20
Aloe minima Baker 1895 non A. margaritifera var. minima Aiton 1789J54, EN20 [=Leptaloe minima (Baker) Stapf 1933EN20]
Aloe minima var. blyderivierensis (Groenewald) Reynolds 1947 [=Leptaloe blyderivierensis Groenewald 1938]EN20
Aloe myriacantha (Haworth) Schultes & Schultes 1829J54, EN20 [=Bowiea myriacantha Haworth 1827EN20, Leptaloe myriacantha (Haworth) Stapf 1933EN20; incl. Aloe carinica Berger 1905EN20, A. graminifolia Berger 1905EN20, A. johnstonii Baker 1887EN20]
Aloe officinalis Forsskål 1775 [=A. vera var. officinalis (Forsskål) Baker 1880; incl. A. vera var. angustifolia Schweinfurth 1894 nec A. lingua var. angustifolia Aiton 1789 nec A. linguaefolia var. angustifolia Willdenow 1809 nec A. acinacifolia var. angustifolia Salm-Dyck 1817 nec A. angustifolia Haworth 1819, A. officinalis var. angustifolia (Schweinfurth) Lavranos 1965, A. maculata Forsskål 1775 non Allioni 1773]EN20
Aloe orientalis (Perrier) Newton & Rowley 1997 non A. marlothii ssp. orientalis Glen & Hardy 1987 [=Lomatophyllum orientale Perrier 1926]EN20
*Aloe perfoliata Linné 1753 [incl. A. brunnthaleri Berger ex Cammerloher 1933, A. juttae Dinter 1923, A. microstigma Salm-Dyck 1854, A. picta var. minor Willdenow 1799 non A. margaritifera var. minor Aiton 1789, A. obscura Miller 1768 (nom. rej.), A. perfoliata var. obscura Aiton 1789, A. picta Thunberg 1785 (nom. rej.)]EN20
Aloe plicatilis (Linné) Burman 1768 [=A. disticha var. plicatilis Linné 1753, Kumara plicatilis (Linné) Rowley 2013, Rhipidodendrum plicatile (Linné) Haworth 1821; incl. *Kumara disticha Medikus 1786, *Ptyas disticha, *Rhipidodendrum distichum (Medikus) Willdenow 1811, Aloe flabelliformis Salisbury 1796, A. lingua Thunberg 1785, A. linguaeformis Linné 1782 (nom. illeg.), A. plicatilis var. major Salm-Dyck 1817 nec A. margaritifera var. major Aiton 1789 nec A. picta var. major Willdenow 1799 nec A. expansa var. major Haworth 1804 nec A. glauca var. major Haworth 1812 nec A. acuminata var. major Salm-Dyck 1817 nec A. fasciata var. major Salm-Dyck 1817 nec A. nitida var. major Salm-Dyck 1817, A. tripetala Medikus 1783 (nom. illeg.)]EN20
Aloe prostrata (Perrier) Newton & Rowley 1997 [=Lomatophyllum prostratum Perrier 1926; incl. A. ankaranensis Rauh & Mangelsdorff 2000, L. propaguliferum Rauh & Razafindratsira 1998, A. propagulifera (Rauh & Razafindratsira) Newton & Rowley 1998]EN20
Aloe purpurea Lamarck 1783EN20 [=Lomatophyllum purpureum (Lamarck) Durand & Schinz 1895EN20; incl. *Phylloma aloiflorum Ker Gawler 1813 (nom. illeg.)EN20, L. aloiflorum (Ker Gawler) Nicholson 1885 (nom. illeg.)EN20, *L. borbonicum Willdenow 1811 (nom. illeg.)EN20, Aloe dentataJ54, Dracaena dentata Persoon 1805 (nom. illeg.)EN20, A. marginalis De Candolle 1800 (nom. illeg.)EN20, Dracaena marginata Aiton 1789 (nom. illeg.)EN20, A. marginata (Aiton) Willdenow 1809 non Lamarck 1783EN20, Lomatophyllum marginatum Hoffmannsegg 1824 (nom. inv.)EN20, A. rufocincta Haworth 1819EN20, L. rufocinctum (Haworth) Salm-Dyck ex Schultes & Schultes 1829EN20, Phylloma rufocinctum (Haworth) Sweet 1827EN20]
Aloe rosea (Perrier) Newton & Rowley 1997 non A. vaotsohy var. rosea Decary 1921 [=Lomatophyllum roseum Perrier 1926]EN20
Aloe rugosifolia Gilbert & Sebsebe 1992 [=A. otallensis var. elongata Berger 1908 nec A. elongata Murray 1789 nec A. trigona var. elongata Salm-Dyck 1821]EN20
Aloe rupestris Baker in Thiselton-Dyer 1896J54, EN20 [incl. A. nitens Baker 1880 non (Haworth) Roemer & Schultes 1829EN20, A. pycnacantha msEN20]
Aloe sabaea Schweinfurth 1894J54, EN20 [=Aloidendron sabaea (Schweinfurth) Boatwright & Manning 2014EN20; incl. Aloe gillilandii Reynolds 1962EN20]
Aloe saundersiae (Reynolds) Reynolds 1947J54, EN20 [=Leptaloe saundersiae Reynolds 1936EN20; incl. A. minima Medley-Wood 1906 nec A. margaritifera var. minima Aiton 1789 nec A. minima Baker 1895EN20]
Aloe sharoniae Crouch & Smith 2011 [=A. cooperi ssp. pulchra Glen & Hardy 1987 nec A. maculata var. pulchra Aiton 1789 nec A. pulchra Lavranos 1973]EN20
Aloe sladeniana Pole-Evans 1920J54, EN20 [=Gonialoe sladeniana (Pole-Evans) Boatwright & Manning 2014EN20, Tulista sladeniana (Pole-Evans) Rowley 2014EN20; incl. Aloe carowii Reynolds 1938EN20]
Aloe spicata Linné 1782EN20 [=*Succosaria spicataEN20; incl. A. (sect. *Anguialoe) sessiliflora Pole-Evans 1917J54, EN20]
Aloe striata Haworth 1804J54, TS03, EN20 [incl. A. albocincta Haworth 1819EN20, A. hanburiana Naudin 1875EN20, A. striata var. oligospila Baker 1894EN20, A. paniculata Jacquin 1809EN20, A. rhodocincta Hort. ex Baker 1880EN20]
Aloe subspicata (Baker) Boatwright & Manning 2013 [=Haworthia subspicata Baker 1904, Chortolirion subspicatum (Baker) Berger 1908]EN20
Aloe variegata Linné 1753J54, EN20 [=*Gonialoe variegata (Linné) Boatwright & Manning 2014EN20, Tulista variegata (Linné) Rowley 2014EN20; incl. A. ausana Dinter 1931EN20, A. variegata var. haworthii Berger 1908EN20, A. punctata Haworth 1804EN20]
Aloe welwitschii Klopper & Smith 2013EN20 [=Haworthia angolensis Baker 1878EN20, *Chortolirion angolense (Baker) Berger 1908EN20, TS03, EN20]
Aloe wollastonii Rendle 1908 [=A. macrocarpa ssp. wollastonii (Rendle) Wabuyele 2006; incl. A. angiensis De Wildeman 1921, A. bequaertii De Wildeman 1921, A. angiensis var. kitaliensis Reynolds 1955, A. lateritia var. kitaliensis (Reynolds) Reynolds 1966, A. lanuriensis De Wildeman 1921]EN20
Aloe zombitsiensis ssp. pallida (Rauh & Mangelsdorff) Newton & Eggli 2018 [=A. prostrata ssp. pallida Rauh & Mangelsdorff 2000 non A. pallida (Haworth) Roemer & Schultes 1829, A. sakarahensis ssp. pallida (Rauh & Mangelsdorff) Lavranos & Teissier 2004]EN20
*Type species of generic name indicated
References
[EN20] Eggli, U., & R. Nyffeler (eds) 2020. Illustrated Handbook of Succulent Plants: Monocotyledons 2nd ed. Springer.
[J54] Jacobsen, H. 1954. Handbuch der sukkulenten Pflanzen: Beschreibung und Kultur der Sukkulenten mit Ausnahme der Cactaceae vol. 1. Abromeitiella bis Euphorbia. Gustav Fischer Verlag: Jena.
[TS03] Treutlein, J., G. F. Smith, B.-E. van Wyk & M. Wink. 2003. Phylogenetic relationships in Asphodelaceae (subfamily Aloooideae) inferred from chloroplast DNA sequences (rbcL, matK) and from genomic fingerprinting (ISSR). Taxon 52: 193–207.