Belongs within: Trichotheliales.
Porina is a genus of lichenised fungi found primarily in shaded habitats in tropical and subtropical regions (P. M. McCarthy).
Characters (from P. M. McCarthy): Thallus corticolous, saxicolous or foliicolous (rarely bryophilous or terricolous). Algae Trentepohlia (mainly in corticolous and saxicolous spp.) or Phycopeltis (in most foliicolous spp.). Perithecia immersed in the thallus or in thallus-dominated verrucae, or superficial on the thallus. Involucrellum vestigial to well-developed and almost completely enclosing the exciple, pale to dark orange-brown, red-brown, brown, green-black, purple-black or jet-black; surface smooth to uneven, lacking whorls of stiff subapical setae (rarely with a more uniformly distributed and delicate pilose or ± tomentose covering). Ascospores with 3 or more transverse septa, or submuriform to muriform.
<==Porina Müll. Arg. 1883 (nom. cons.) (see below for synonymy)KC01 |--+--+--P. curtula Malme 1929LV98 | | `--P. tetracerae (Afz.) Mueller 1885 [=Verrucaria tetracerae Afz. in Ach. 1803; incl. P. variegata]LV98 | `--+--P. distans Vězda & Vivant 1994LV98 | |--P. exasperatula Vainio 1914LV98 | `--+--P. conspersa Malme 1929LV98 | `--P. imitatrix Mueller 1890 (see below for synonymy)LV98 `--+--+--P. subnucula Lumbsch, Lücking & Vězda in Lücking & Vězda 1998LV98 | `--+--P. verruculosa Mueller 1890LV98 | `--+--P. rudiuscula (Nyl.) Mueller 1892 [=Verrucaria rudiuscula Nyl. 1868]LV98 | `--+--*P. nucula Ach. 1814LV98 | `--P. pocsii Vězda 1984LV98 `--+--+--+--P. follmanniana Becker & Lücking in Daniels et al. 1995LV98 | | `--P. radiata Kalb, Lücking & Vězda in Lücking & Vězda 1998 [=P. rugosa Kalb & Vězda 1992 non Ach. 1814]LV98 | `--+--+--P. epiphylloides Vězda 1975LV98 | | `--P. guianensis Lücking & Vězda 1998LV98 | `--+--P. longispora Vězda 1975LV98 | `--P. mazosioides Lücking & Vězda 1998LV98 `--+--P. foliicola (Vězda) Lücking & Vězda 1998 [=Clathroporina foliicola Vězda 1977]LV98 `--+--+--P. andreana Lücking & Vězda 1998LV98 | `--P. mirabilis Lücking & Vězda 1998LV98 `--+--+--P. conica Sant. 1952LV98 | `--P. subepiphylla Lücking & Vězda 1998LV98 `--+--+--P. atriceps (Vainio) Vainio 1921 (see below for synonymy)LV98 | `--P. atropunctata Lücking & Vězda 1998LV98 `--+--P. virescens (Kremp.) Mueller 1883 (see below for synonymy)LV98 `--+--P. similis Kalb & Vězda 1991LV98 `--+--P. lucida Sant. 1952 [incl. P. lenticulata Lücking 1994 (n. n.)]LV98 | |--P. l. var. lucidaLV98 | `--P. l. var. australiensis Lücking & Vězda 1998LV98 `--+--P. albicera (Kremp.) Overeem 1922 (see below for synonymy)LV98 `--+--P. epiphylla (Fée) Fée 1837 (see below for synonymy)LV98 `--P. minutissima Henssen, Lücking & Vězda in Lücking & Vězda 1998LV98 Porina incertae sedis: ‘Phyllophiale’ alba Santesson 1952LV98 P. americanaLV98 P. applanataLV98 P. epilucidaLV98 P. fulvellaLV98 P. fusca Lücking 1991 [=Phyllophiale fusca]LV98 P. guaraniticaLV98 P. guentheriJC03 P. heterosporaLV98 P. mastoideaLV98 P. nuculastrumLV98 P. rufulaLV98 P. rugosa Ach. 1814LV98 P. simulansLV98
Porina Müll. Arg. 1883 (nom. cons.) [incl. Cryptopeltis Rehm 1906, Ophthalmidium Eschw. 1824, Phragmopeltheca Xavier 1976, Phyllophiale Sant. 1952, Phylloporina (Müll. Arg.) Müll. Arg. 1890, Pseudosagedia (Müll. Arg.) Choisy 1949, Sagedia Massal. 1852 (nom. rej.) non Ach. 1809, Segestrella Fr. 1831, Segestria Fr. 1825 non Latreille 1804 (ICZN), Sphaeromphale Rchb. 1828, Stephosia Bat. & Maia 1967, Zamenhofia Clauzade & Roux 1985 (ICZN)]KC01
Porina albicera (Kremp.) Overeem 1922 [=Verrucaria albicera Kremp. 1874; incl. Phylloporina myriocarpa Mueller 1891]LV98
Porina atriceps (Vainio) Vainio 1921 [=P. epiphylla var. atriceps Vainio 1896; incl. Phylloporina cupreofusca Zahlbr. 1928]LV98
Porina epiphylla (Fée) Fée 1837 [=Porina americana var. epiphylla Fée in Bory de Saint-Vincent et al. 1831; incl. P. insperata Mueller 1883, P. ephiphylla var. major Vainio 1921, Verrucaria praestans Nyl. 1868, Micropeltis schmidtiana Rostr. 1902]LV98
Porina imitatrix Mueller 1890 [incl. Po. affinis Schill. 1927, Phylloporina caerulescens Mueller 1890, Po. hypothetica Vainio 1921, Ph. schiffneri Zahlbr. 1909]LV98
Porina virescens (Kremp.) Mueller 1883 [=Verrucaria virescens Kremp. 1874; incl. P. multiseptata Mueller 1883, P. pandanorum Vainio 1921]LV98
*Type species of generic name indicated
References
[JC03] Jacobs, A., M. P. A. Coetzee, B. D. Wingfield, K. Jacobs & M. J. Wingfield. 2003. Phylogenetic relationships among Phialocephala species and other ascomycetes. Mycologia 95 (4): 637–645.
[KC01] Kirk, P. M., P. F. Cannon, J. C. David & J. A. Stalpers. 2001. Ainsworth & Bisby’s Dictionary of the Fungi 9th ed. CAB International: Wallingford (UK).
[LV98] Lücking, R., & A. Vězda. 1998. Taxonomic status in foliicolous species of the genus Porina (lichenized Ascomycotina: Trichotheliaceae)—II. The Porina epiphylla group. Willdenowia 28: 181–226.