Androecium: fertile stamens 4, didynamous, subsimilar, arising in pairs in throat of corolla tube or ± halfway down, exserted or included; filaments linear; anthers 2-thecous; thecae parallel, oblong, muticous; staminodes 0
Pollen prolate, 3-colporate, with many pseudocolpi; pore lipped; surface pusticulate
Disc annular, with projection perhaps representing a fifth stamen
Gynoecium: ovary elliptic, with 2 ovules in each locule; style terete, exserted, pubescent; style branch 1, ventral lobe flattened, or sometimes expanded, longer than broad
Capsule cylindric, estipitate, with inelastic placental bases
Seeds usually 4, compressed, orbicular, with hygroscopic hairs over whole surface or sometimes restricted to rim
x = 10 (polyploidy)
Nomenclature:
Dyschoriste Nees
Nees von Esenbeck: 75 (1832)
Clarke: 71 (1899)
Clarke: 15 (1901)
Calophanes D.Don
Don: t. 181 (1833) in part
Distribution & Notes:
Global: Species ± 65, cosmopolitan in tropical and warm areas
Southern Africa: Species 11, Namibia, Botswana, Swaziland and mainly northern and eastern provinces of South Africa
References:
BURKILL, I.H. & CLARKE, C.B. 1899. Acanthaceae. Flora of tropical Africa 5
DON, D. 1833. Calophanes. In R.Sweet, The British flower garden, series II. London
NEES VON ESENBECK, C.G.D. 1832. Acanthaceae indiae orientalis. In N.Wallich, Plantae asiaticae rariores 3. Treuttel & Würtz, London
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Welcome to Biodiversity Advisor 2.0!
Biodiversity Advisor, developed by the South African National Biodiversity Institute (SANBI) and its Data Partners, is a system that will provide integrated biodiversity information to a wide range of users who will have access to geospatial data, plant and animal species distribution data, ecosystem-level data, literature, images and metadata.
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