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This species is accepted, and its native range is W. & SW. Tanzania to S. Tropical 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
Herb, erect, single or few-stemmed.
Vegetative Multiplication Tubers
Tuber conical to spherical, up to 8 cm diameter.
Morphology Stem
Aerial stems erect, up to 80 cm long, branching lateral, sparsely to densely pubescent or velutinous
Morphology Leaves
Leaf petiole 0–2.5 cm long; blade obovate, ovate, narrowly obovate, narrowly ovate or linear, (2–)10–21 × (0.3–)1–6 cm, often narrowing from base to apex of stem, above dark green, glabrous, pubescent or velutinous and often densely dotted, beneath pale green and glabrous with veins pubescent or velutinous or hairy all over; secondary veins arching
Morphology Reproductive morphology Inflorescences
Inflorescences 1–3-flowered, terminal and from upper 2–3 nodes; indumentum as on stem.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles rarely present.
Morphology Reproductive morphology Inflorescences Bracts
Bracts subulate to narrowly triangular, 1–5 mm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 1.5–5 cm long
Morphology Reproductive morphology Flowers Calyx
Sepals narrowly ovate, 5–6 × ± 2 mm, acuminate, margin fimbriate
Morphology Reproductive morphology Flowers Corolla
Corolla glabrous; tube campanulate, 5–9 mm long, pentangular, basally 5-saccate; lobes ovate to triangular, 115–20 × 8–10 mm, inside deep violet, deep violet-blue or deep red, sometimes with green tips
Morphology Reproductive morphology Flowers Corona
Corona white, whitish flecked violet, violet or greenish; lobes fused to corolla lobe bases, fleshy, rectangular, 4–5 × 4–5 mm, apex trisegmented, central segment filiform, 5–7 mm long, lateral segments corniculate to subulate, 1–2 mm long
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Staminal filaments filiform, 1–2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers creamy-white with connective purplish, narrowly ovate-hastate, acute, 7–8 mm long, upper half with pollen, lower of two thickened horn-like callosities
Morphology Reproductive morphology Flowers Gynoecium Style
Style terete, 5–6 mm long; style-head broadly oblong-ovoid, obtuse, 5–9 × 4–8 mm
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium base in corolla mouth
Morphology Reproductive morphology Fruits
Follicles paired, erect, linear-ovoid, 15–18 cm long, 8–10 mm diameter, attenuate, glabrous.
Morphology Reproductive morphology Seeds
Seeds narrowly ovate, 8–10 mm long; coma 3 cm long
Figures
Fig 47, p 151
Ecology
Miombo woodland and grassland on alluvium, sand or laterite, often on stony soil among rocks; 900–1400 m
Distribution
Flora districts: T4 T8 Range: Rwanda, Zambia, Malawi, Mozambique and Zimbabwe

Native to:

Malawi, Mozambique, Rwanda, Tanzania, Zambia, Zimbabwe

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

Date Reference Identified As Barcode Type Status
Carson, A. [5], Zambia K000234182 Unknown type material
Milne-Redhead, E. [8394 A], Tanzania Pentagonanthus grandiflorus 5130.000
Goyder, D.J. [3597], Malawi Pentagonanthus grandiflorus 58335.000

First published in Bull. Misc. Inform. Kew 1895: 111 (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

  • 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.

Flora of Tropical East Africa

  • F.T.A. 4(1): 270 (1902)
  • K.B. 1895: 111 (1895)
  • K.B. 8: 353 (1953).

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