Skip to main content
This genus is accepted, and its native range is Sahara & Sahel to E. Tropical Africa, Arabian Peninsula.
Desmidorchis speciosa

[FTEA]

Apocynaceae (part 2), David Goyder, Timothy Harris, Siro Masinde, Ulrich Meve, Johan Venter. Flora of Tropical East Africa, 2012

Morphology General Habit
Erect, massive stem-succulents.
Morphology General Exudate
Latex clear or at most cloudy.
Morphology Stem
Stems rounded to sharply 4-angled, smooth
Morphology Leaves
Leaf rudiments spreading to slightly ascending, sessile, ovate, basally cordate or rounded, apically obtuse or acuminate, fleshy and caducuous or constituting thorns; stipules reduced to a few hairs
Morphology Reproductive morphology Inflorescences
Inflorescences in terminal pseudo-umbels, 10–80(–200)-flowered, sub-sessile
Morphology Reproductive morphology Flowers
Flowers open simultaneously, usually with dung-like odour
Morphology Reproductive morphology Flowers Corolla
Corolla rotate or campanulate, fleshy, adaxial surfaces often warty or rugose, glabrous, papillose or with trichomes, green, yellow, brown or purple or patterned; corolla lobes triangular, ovate to lanceolate, occasionally ciliate; corolla tube flat, funnel-shaped, cup-shaped or campanulate
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium sub-sessile, concealed in corolla
Morphology Reproductive morphology Flowers Corona
Gynostegial corona in 2 series: “outer” corona of 5 staminal and 5 interstaminal parts fused to half of length, cyathiform, interstaminal corona subulate, bifid, spreading, occasionally with trichomes; “inner” staminal corona lobes triangular to subulate, inflexed Corolline corona absent
Morphology Reproductive morphology Flowers Pollinia
Pollinia globose, ovoid or D-shaped; caudicles rectangular
Morphology Reproductive morphology Fruits
Mericarps two 10–15 cm long, narrowly fusiform or narrowly oblong, occasionally winged.
Morphology Reproductive morphology Seeds
Seed ovate, broadly winged, brown or light brown.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Succulent herbs, generally large, robust, uniformly grey- or yellowish-green
Morphology Stem
Stems 4-angled, variously toothed, often with a hard, horny margin developing with age, the angles acute, usually extending into narrow or wide wing; latex clear
Morphology Leaves
Leaves rudimentary and soon deciduous
Morphology Reproductive morphology Inflorescences
Flowers in terminal simple or compound, many-flowered umbel-like inflorescences which, in one species, become laterally displaced by new growth of the stem apex, opening simultaneously
Morphology Reproductive morphology Flowers Corolla
Corolla rotate or campanulate; lobes ovate-triangular, sometimes with a rough surface, with or without marginal cilia
Morphology Reproductive morphology Flowers Corona
Corona gynostegial, with 2-fid, erect or recurved outer lobes, or sometimes outer lobes absent
Morphology Reproductive morphology Seeds
Seeds with a tuft of hairs at one end.
Distribution
Genus of about a dozen species using the circumscription proposed by Meve & Liede (2002), ranging from West Africa to the Arabian Peninsula.

Native to:

Algeria, Burkina, Chad, Djibouti, Eritrea, Ethiopia, Ghana, Gulf States, Kenya, Mali, Mauritania, Morocco, Niger, Nigeria, Oman, Saudi Arabia, Senegal, Somalia, Sudan, Tanzania, Uganda, Yemen

Desmidorchis Ehrenb. appears in other Kew resources:

First published in Linnaea 4: 94 (1829)

Accepted by

  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.

Not accepted by

  • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141. [Cited as Caralluma.]

Literature

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by J. Lavranos [updated by M. Thulin 2008]

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0