Merremieae

Hairy woodrose Merremia aegyptia, copyright J. M. Garg.

Belongs within: Convolvuloideae.

The Merremieae are a pantropical group of herbaceous vines characterised by globose stigmas (Stefanović et al. 2003).

Characters (from Stefanović et al. 2003): Plants herbaceous, vines. Leaf base usually cordate. Flowers actinomorphic, bisexual. Filaments dilated, usually pubescent. Styles entire. Stigmas globose. Fruits dehiscent, capsular, valvate to operculate. Pericarp chartaceous. Pollen 3-colpate or pantoporate, non-echinate.

<==MerremieaeST98
    |--Hewittia sublobataSAO03, ST98
    |--HyalocystisSAO03
    |--DecalobanthusSAO03
    |--Xenostegia Austin & Staples 1980SAO03, L95
    |    `--X. tridentata (L.) Austin & Staples 1980 (see below for synonymy)L95
    |--Operculina Manso 1836SAO03, L95
    |    |--O. aequisepalaLK14
    |    |--O. browniiLK14
    |    |--O. petaloideaM72
    |    |--O. pteripesST98
    |    |--O. riedelianaST98
    |    |--O. triquetraST98
    |    `--O. turpethumST98
    |         |--O. t. var. turpethumL95
    |         `--O. t. var. ventricosa (Bert.) Staples & Austin 1981 (see below for synonymy)L95
    `--Merremia Dennstedt ex Endl. 1841L95
         |--M. aegyptia (L.) Urb. 1910 (see below for synonymy)L95
         |--M. aureaST98
         |--M. bipinnatipartitaCV06
         |--M. cissoides (Lam.) Hall. f. 1893 [=Convolvulus cissoides Lam. 1791, Ipomoea cissoides (Lam.) Griseb. 1861]L95
         |--M. dissecta (Jacq.) Hall. f. 1893 (see below for synonymy)L95
         |--M. gemellaLK14
         |--M. guerichiiCV06
         |--M. hederaceaP88
         |--M. incisaLK14
         |--M. kimberleyensisLK14
         |--M. mediumST98
         |--M. multisectaCV06
         |--M. peltataSAO03
         |--M. quinataLK14
         |--M. quinquefolia (L.) Hall. f. 1893 (see below for synonymy)L95
         |--M. tuberosa (L.) Rendle in Dyer 1905 (see below for synonymy)L95
         `--M. umbellata (L.) Hallier 1893 (see below for synonymy)L95
              |--M. u. ssp. umbellataLK14
              `--M. u. ssp. orientalisLK14

Merremia aegyptia (L.) Urb. 1910 [=Ipomoea aegyptia L. 1753, Operculina aegyptia (L.) House 1906; incl. Convolvulus pentaphyllus L. 1762, Batatas pentaphylla (L.) Choisy 1834, Ipomoea pentaphylla (L.) Jacq. 1788, Merremia pentaphylla (L.) Hall. f. 1893]L95

Merremia dissecta (Jacq.) Hall. f. 1893 [=Convolvulus dissectus Jacq. 1767, Ipomoea dissecta (Jacq.) Pursh 1814, Operculina dissecta (Jacq.) House 1906; incl. I. sinuata Ortega 1798]L95

Merremia quinquefolia (L.) Hall. f. 1893 [=Ipomoea quinquefolia L. 1753, Batatas quinquefolia (L.) Choisy 1837, Convolvulus quinquefolius (L.) L. 1759]L95

Merremia tuberosa (L.) Rendle in Dyer 1905 [=Ipomoea tuberosa L. 1753, Operculina tuberosa (L.) Meissn. in Mart. 1869]L95

Merremia umbellata (L.) Hallier 1893 [=Convolvulus umbellatus L. 1753, Ipomoea umbellata (L.) Meyer 1818; incl. I. mollicoma Miq. 1850, I. polyanthes R. & S. 1819, Convolvulus sagittifer HBK. 1819]L95

Operculina turpethum var. ventricosa (Bert.) Staples & Austin 1981 [=Convolvulus ventricosus Bert. in Colla 1824, Ipomoea ventricosa (Bert.) Don 1838, Operculina ventricosa (Bert.) Peter in Engl. & Prantl 1891]L95

Xenostegia tridentata (L.) Austin & Staples 1980 [=Convolvulus tridentatus L. 1753, Ipomoea tridentata (L.) Roth in Roem. 1798, Merremia tridentata (L.) Hallier 1893; incl. I. angustifolia Jacq. 1786–1793, M. angustifolia (Jacq.) Hall. f. 1893, Convolvulus filicaulis Vahl 1794]L95

*Type species of generic name indicated

References

[CV06] Craven, P., & P. Vorster. 2006. Patterns of plant diversity and endemism in Namibia. Bothalia 36 (2): 175–189.

[L95] Liogier, H. A. 1995. Descriptive Flora of Puerto Rico and Adjacent Islands: Spermatophyta-Dicotyledoneae vol. 4. Melastomataceae to Lentibulariaceae. Editorial de la Universidad de Puerto Rico.

[LK14] Lyons, M. N., G. J. Keighery, L. A. Gibson & T. Handasyde. 2014. Flora and vegetation communities of selected islands off the Kimberley coast of Western Australia. Records of the Western Australian Museum Supplement 81: 205–244.

[M72] Mitra, S. N. 1972. Observations on the vegetation of the Upper Damodar catchment area. Journal of the Bombay Natural History Society 69 (1): 17–25.

[P88] Polunin, I. 1988. Plants and Flowers of Malaysia. Times Editions: Singapore.

[ST98] Schimming, T., B. Tofern, P. Mann, A. Richter, K. Jenett-Siems, B. Dräger, N. Asano, M. P. Gupta, M. D. Correa & E. Eich. 1998. Distribution and taxonomic significance of calystegines in the Convolvulaceae. Phytochemistry 49: 1989–1995.

[SAO03] Stefanović, S., D. F. Austin & R. G. Olmstead. 2003. Classification of Covolvulaceae: a phylogenetic approach. Systematic Botany 28 (4): 791–806.

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