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This genus is accepted, and its native range is Tropical & S. Africa.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Perennial herbs with annual stems arising from a tuberous rootstock.
Morphology General Exudate
Latex milky.
Morphology Stem
Stems 1 to many, simple or branched below, erect or ascending, pubescent with short spreading hairs
Morphology Leaves
Leaves opposite, petiolate; lamina generally with prominent secondary veins anastomosing to form an undulating submarginal vein, and an indumentum of scabrid hairs particularly along the margins
Morphology Reproductive morphology Inflorescences
Inflorescences terminal and extra-axillary, umbels nodding or erect, sessile or more commonly pedunculate
Morphology Reproductive morphology Flowers Calyx
Calyx lobed to the base
Morphology Reproductive morphology Flowers Corolla
Corolla rotate to campanulate (reflexed in some southern African species)
Morphology Reproductive morphology Flowers Corona
Gynostegial corona of 5 lobes arising near the base of the staminal column (at the top of a gynostegial stipe in P medusonema), spreading or ascending, generally dorsiventrally flattened and usually with a pair of triangular or quadrate appendages arising near the base of the upper surface, but sometimes appearing ± cucullate or pouched, and generally with an apical tongue; upper parts sometimes minutely verrucose or papillate, the remainder of the lobe generally glabrous Corolline corona absent
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal column stout, anther wings vertical or spreading.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther appendages inflexed over stylar head; corpusculum ovoid, occasionally narrower; translator arms flattened and geniculate, frequently with a short clasping overlap with the pollinia.
Morphology Reproductive morphology Flowers Pollinia
Pollinia flattened, sometimes only weakly, and usually broadest distally.
Morphology Reproductive morphology Flowers Gynoecium Style
Stylar head truncate, ± level with head of staminal column or slightly raised above it
Morphology Reproductive morphology Fruits
Follicles single by abortion, held ± erect by contortion of the fruiting pedicel, weakly to strongly inflated, frequently with longitudinal wings or ridges, minutely puberulent or glabrous
Morphology Reproductive morphology Seeds
Seeds flattened, rarely ovoid, generally differentiated into a verrucose disc and an inflated or convoluted rim; coma of silky hairs.

Native to:

Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Central African Repu, Chad, Congo, Ethiopia, Free State, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Lesotho, Malawi, Mali, Mozambique, Namibia, Nigeria, Northern Provinces, Rwanda, Senegal, Sierra Leone, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Pachycarpus E.Mey. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Schaijes, M. [2825], Congo, DRC 50430.000

First published in Comm. Pl. Afr. Austr.: 209 (1838)

Accepted by

  • Albers, F. & Meve, U. (eds.) (2002). Illustrated handbook of succulent plants Asclepiadaceae, corr. 2nd printing: 1-318. Springer, Berlin, Heidelberg,New York.

Literature

Flora of Tropical East Africa

  • Comm Pl. Afr. Austr. 209 (1838)
  • F.P.A. 58: 96–103 (2003)
  • K.B. 53: 335–374 (1998)

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

Herbarium Catalogue Specimens

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