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This species is accepted, and its native range is W. & S. 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
Erect perennial herb with a subglobose to carrot-shaped tuber.
Morphology Stem
Stems usually single, 30–55 cm tall, pubescent with short curled hairs
Morphology Leaves
Leaves petiolate or rarely subsessile, petiole to 8 mm long; lamina often oblong or ovate in lowest leaves, other leaves obovate, 2.5–6.5 × 1.5–3.5 cm, rounded to obtuse or subacute, occasionally slightly retuse, shortly mucronate or not, cuneate at the base, sometimes narrowly so, veins prominent below, reticulate, glabrescent, young leaves with scattered rusty hairs below or on both surfaces
Morphology Reproductive morphology Inflorescences
Umbels sessile, extra-axillary, with 4–8 flowers at few or many nodes.
Morphology Reproductive morphology Inflorescences Bracts
Bracts linear, 3–4 mm long, acute.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 5–19 mm long, slender, pubescent
Morphology Reproductive morphology Flowers Calyx
Calyx lobes lanceolate, 3–4 × 1–1.5 mm, acute, reflexed by the corolla
Morphology Reproductive morphology Flowers Corolla
Corolla white or yellowish green, campanulate or rotate-campanulate, globose in bud, lobed almost to the base; lobes ovate to oblong, 5 × 2–3 mm, acute, the underside glabrous or with scattered reddish hairs on the upper half, upper surface minutely papillate or with white hairs near the base of the lobe
Morphology Reproductive morphology Flowers Corona
Corona lobes about as high as the column, spreading outwards for ± 2 mm then arching upwards and inwards to the head of the gynostegium, the outer face broadly ovate, ± 4 × 5 mm with a subacute apex, the inner face with a pubescent or glabrous ridge running down the inner face from the fleshy apex
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium 3–4 mm high
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther wings ± triangular, the base spreading outwards from the column; appendages ovate, 1.5 × 1.5 mm, subacute, inflexed over the apex of the stylar head; corpusculum black, ovoid, 0.4–0.5 mm long; translator arms 0.4–0.8 mm long, flattened ± uniformly along the entire length.
Morphology Reproductive morphology Flowers Pollinia
Pollinia triangular, 0.6–0.8 × 0.4–0.6 mm
Morphology Reproductive morphology Flowers Gynoecium Style
Tip of stylar head flat, level with or raised slightly above anther tips
Morphology Reproductive morphology Fruits
Follicles erect, ± 25 cm long, smooth, pubescent, the lower half forming a narrow ‘stipe’, the upper half narrowly fusiform.
Ecology
Brachystegia woodland; 900–1500 m
Distribution
Flora districts: T4 T8 Range: Zambia, Malawi and Mozambique

Native to:

Malawi, Mozambique, Tanzania, Zambia, Zimbabwe

Xysmalobium fraternum N.E.Br. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Anstey [4], Tanzania 58623.000
Last, Malawi 58628.000 holotype
Richards [11731], Tanzania 58632.000
Richards [13886], Tanzania 58633.000
Pawek [6287], Malawi 58645.000
Bjornstad [2157], Tanzania 58646.000
Last, J.T. [s.n.], Malawi K000234546 Unknown type material

First published in Bull. Misc. Inform. Kew 1895: 252 (1895)

Accepted by

  • 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.

Literature

Kew Backbone Distributions

  • 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.

Flora of Tropical East Africa

  • F.T.A. 4(1): 305 (1902).
  • K.B. 1895: 252 (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