Acanthaceae - Acanthoideae - Justicieae - Justiciinae - Duvernoia E.Mey. ex Nees
Description:
Shrubs or small trees
Leaves large, elliptic, entire or obscurely undulate-crenate
Inflorescence axillary, pedunculate thyrses; bracts and bracteoles small
Calyx regular, glabrous; lobes 5; tube longer than lobes, campanulate
Corolla 2-lipped, minutely pubescent; upper lip shortly 2-lobed, rugula distinct, staminal channels present; lower lip 3-lobed, with middle lobe oblong and others falcately oblong, with two gibbosities at base without; aestivation ascending; tube shorter than lobes, subcampanulate
Androecium: fertile stamens 2, arising in mouth of corolla, exserted; filaments terete; anthers 2-thecous; thecae parallel, muticous; staminodes 0
Pollen prolate, 2-colporate, with pseudocolpi; surface reticulate
Disc deeply cupular, with V-shaped slit, with 2 awns
Gynoecium: ovary subglobose, with 2 ovules in each locule, densely hairy; style terete, running in rugula, exserted; style branches 2, equal, very short, broader than long
Capsule woody, club-shaped, tomentose, stipitate, with inelastic placental bases
Seeds semiorbicular, compressed; surface rough and convolute or rugose
Nomenclature:
Duvernoia E.Mey. ex Nees
Nees von Esenbeck: 322 (1847)
Manning & Getliffe Norris: 15 (1995)
Distribution & Notes:
Global: Species 2, Mozambique and southern Africa
Southern Africa: Species 2, in Swaziland and eastern provinces of South Africa
References:
NEES VON ESENBECK, C.G.D. 1847. Acanthaceae. In A. de Candolle, Prodromus 11. Treuttel & Würtz, Paris
MANNING, J.C. & GETLIFFE NORRIS, F. 1995. Duvernoia. Flora of southern Africa 30,3,1
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