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This species is accepted, and its native range is Central African Republic to Tanzania and N. Botswana.
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
Herb up to 75 cm long, erect, terminally twining, single- or few-stemmed, with white latex.
Vegetative Multiplication Tubers
Tuber ovoid to flattened-globose, up to 10 cm diameter.
Morphology Stem
Aerial stems brownish, branching lateral, puberulous
Morphology Leaves
Leaves sessile; blade linear to very narrowly ovate, (5–)12–15(–20) × (0.4–)0.88–1(–2.2) cm, attenuate, base tapering, often involute, above green, puberulent, beneath pale green, puberulent, midvein prominent, whitish, secondary veins looping
Morphology Reproductive morphology Inflorescences
Inflorescences axillary and terminal, fascicles 5–10-flowered, puberulous.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles 2–10 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts subulate, 2–3 mm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 3–6 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals triangular to ovate, ± 2 × 1 mm, densely puberulent
Morphology Reproductive morphology Flowers Corolla
Corolla outside densely puberulent; tube campanulate, ± 2 mm long; lobes oblong-ovate to triangular, 4–6 × 2–3 mm, inside greenish, greenish-brown, greenish-purple, maroon-brown or dull purple-red
Morphology Reproductive morphology Flowers Corona
Coronal feet columnar, ± 1 mm long; lobes from outer apex of coronal feet, trisegmented, central segment filiform, 5–6 mm long; lateral segments subulate, ± 1 mm long Corona whitish to purple.
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal filaments from inner apex of coronal feet, filiform, 1–2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers white, oblong-ovate, 1–2 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Style terete, ± 2 mm long, glabrous; style-head ovoid, ± 2 × 1 mm
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium base in corolla mouth
Morphology Reproductive morphology Fruits
Follicles paired, erect, cylindrical-ovoid, ± 10 cm long
Morphology Reproductive morphology Seeds
Seeds unknown.
Ecology
Miombo grassland; 500–1600 m
Distribution
Range: Zambia, Malawi, Mozambique, Zimbabwe and Botswana Flora districts: T6 T7 T8

[FTEA]
Use
Tuber used as food

Native to:

Botswana, Burundi, Central African Repu, Malawi, Mozambique, Tanzania, Zambia, Zimbabwe

Raphionacme longifolia N.E.Br. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Wild, H. [40781], Zimbabwe 1996.000
Milne-Redhead, E. [7664], Tanzania 27449.000
Faulkner, H. [K.203], Mozambique 4038.000
Goyder, D.J. [4103], Zimbabwe 60251.000
Kirk [s.n.], Mozambique K000234168 lectotype
Kirk [s.n.], Malawi K000234169 paralectotype
Kirk [s.n.], Mozambique K000234167 paralectotype
Kirk [s.n.], Mozambique K000234170 Unknown type material

First published in Bull. Misc. Inform. Kew 1895: 110 (1895)

Accepted by

  • Albers, F. & Meve, U. (eds.) (2002). Illustrated handbook of succulent plants Asclepiadaceae, corr. 2nd printing: 1-318. Springer, Berlin, Heidelberg,New York.
  • Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Flora Zambesiaca 7(3): 1-375. Royal Botanic Gardens, Kew.
  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Literature

Kew Backbone Distributions

  • Masharabu, T., Bigendako, M.J., Lejoly, J., Nkengurutse, J., Noret, N., Bizuru, E. & Bogaert, J. (2010). Etude analytique de la flore et de la végétation du Parc National de la Ruvubu, Burundi International Journal of Biological and Chemical Sciences 4: 834-856.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Flora of Tropical East Africa

  • K.B. 1895: 110 (1895).

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

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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