7940.000 Duosperma Dayton

DISPERMA C.B. Clarke

Leistner, O.A. (ed.) (2000) Seed plants of southern Africa: families and genera Strelitzia 10

Vollesen, K. (2006) A taxonomic revision of the genus Duosperma (Acanthaceae) Kew Bulletin 61(3) 289-351

Description of the genus

Perennial herbs or shrubs. Leaves (in ours) dentate. Inflorescences of axillary dichasical cymes. Bracts and bracteoles c. as long as calyx. Calyx lobes 5, ovate. Corolla 2-lipped; upper lip 3-lobed, transversely ribbed on palate. Fertile stamens 4. Capsule with 1 seed in each loculus. Seeds borne on retinacula; with white hygroscopic hairs.

Worldwide: 26 species in tropical and southern Africa with one species extending into Yemen

Caprivi: 2 taxa.

Duosperma crenatum

Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesContent
crenatum (Lindau) P.G. Mey.Description, Image
quadrangulare (Klotzsch) BrummittDescription, Image

Other sources of information about Duosperma:

Our websites:

Flora of Botswana: Duosperma
Flora of Malawi: Duosperma
Flora of Mozambique: Duosperma
Flora of Zambia: Duosperma
Flora of Zimbabwe: Duosperma

External websites:

ePIC (electronic Plant Information Center): Duosperma
Flora Zambesiaca web site: Duosperma
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Duosperma
IPNI (International Plant Names Index): Duosperma
Kew Herbarium catalogue: Duosperma

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-19

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2019). Flora of Caprivi: Genus page: Duosperma.
https://www.capriviflora.com/speciesdata/genus.php?genus_id=1332, retrieved 23 July 2019

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