Dwarf, succulent, leafless perennials, decumbent to erect; occasionally rhizomatous
Stems 4-6-angled, glabrous, fleshy; angles tubercled with rudimentary leaves from centre of tubercle and minute glandular stipules on each side of base of rudimentary leaves
Flowers on rudimentary peduncles; 1 or more opening together or in succession, mainly in lower half of stem
Sepals ovate-lanceolate, acuminate, sometimes with scales within base
Corolla raised into a cushion-like, fleshy, circular to pentagonal annulus in centre, lobes spreading, ± lanceolate, usually with strongly replicate margins, sometimes ciliate with fixed or vibratile hairs
Corona 2-seriate, arising from near top of staminal column; outer corona hidden by or sometimes hiding annulus, flat and disc-like, or occasionally slightly 5(or 10)-angled, with or without hairs or papillae; inner corona of 5 ± turgid lobes, with swollen bases and inner face somewhat incumbent on anthers and rising symmetrically around centre of staminal column
Anthers 2-locular, ± horizontal on top of style head, without apical appendage
DYER, R.A. 1971. New and interesting records of African plants. Bothalia 10
HAWORTH, A.H. 1812. Synopsis plantarum succulentarum. Taylor & Co., London
LEACH, L.C. 1969. Stapelieae from south tropical Africa, V. Bothalia 10
LEACH, L.C. 1974. Stapelieae (Asclepiadaceae) from south tropical Africa. Journal of South African Botany 40
MEVE, U. 1988. Duvalia vestita Meve (Asclepiadaceae/Stapelieae) - Eine neue Art der südwestlichen Kapprovinz. Kakteen und andere Sukkulenten 39
MEVE, U. 1997. The genus Duvalia (Stapelieae). Springer, Vienna, New York
WHITE, A. & SLOANE, B.L. 1937. The Stapelieae 2, edn 2. Abbey San Encino Press, Pasadena, California
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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.
The integrated information comes from our much-loved Botanical Database of Southern Africa (BODATSA) also known as Plants of Southern Africa (POSA), Zoological Database of Southern Africa (ZODATSA), Biodiversity Geographic Information System (BGIS), SANBI's institutional repository (Opus) and others.
The system is still under development, so you may find a few bugs/issues. If you do, please report it via the error reporting button available in various sections of the website or provide us with any useful feedback you may have via the ‘Give us feedback’ option available in the sidebar menu. You can create a free account for yourself by clicking on the user profile icon which will take you through to the login page. Here you can choose the ‘Create an account’ option or simply fill in your details if you have an account already. Having an account on Biodiversity Advisor will provide users with free access to biodiversity resources.
In future, Team SANBI will be able to log in using their day-to-day login details, BGIS users will be able to use their existing accounts and details, and general users will be able to log in using their LinkedIn profile, but for now you will need to create an account.
