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
Perennial herbs or shrubs. Leaves (in ours) dentate. Inflorescences of axillary dichasial cymes. Bracts and bracteoles c. as long as calyx. Calyx lobes 5, ovate. Corolla 2-lipped; upper lip 3-lobed, transversely ribbed on the palate. Fertile stamens 4 ; anthers 2-thecous. Capsule with 1 seed in each loculus. Seeds borne on retinacula; with white hygroscopic hairs. Derivation of name: from Latin duo meaning two and sperma a seed, referring to the 2-seeded fruits. Worldwide: 26 species in tropical and southern Africa with one species extending into Yemen. DRC: 6 taxa. |
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| Species | Botanical divisions | Content |
| clarae Champl. | ||
| densiflorum (C.B.Clarke) Brummitt | ||
| fimbriatum Brummitt | Description | |
| kaessneri (S.Moore) Vollesen & I.Darbysh. | ||
| nudantherum (C.B. Clarke) Brummitt | ||
| quadrangulare (Klotzsch) Brummitt | Description, Image |