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This species is accepted, and its native range is Eritrea to 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
Scandent shrub or twiner to 8 m.
Morphology Stem
Stems thick and fleshy, glabrous except on very young shoots
Morphology Leaves
Leaves with petiole 2–6 cm long, glabrous; lamina broadly ovate to suborbicular, 5–10(–12) × 4–6(–10) cm, apex acute to shortly attenuate, base weakly to strongly cordate, glabrous except on principal veins beneath
Morphology Reproductive morphology Inflorescences
Inflorescences axes to 10(–13) cm long, somewhat fleshy, subglabrous or minutely pubescent.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 4–6 mm long, minutely pubescent
Morphology Reproductive morphology Flowers Calyx
Calyx lobes ovate, 0.5–1 mm long, rounded to subacute, minutely pubescent
Morphology Reproductive morphology Flowers Corolla
Corolla greenish yellow or the lower half reddish purple, united at the base, rotate; lobes oblong or oblong-ovate, 2.5–4 × 1–1.5 mm, truncate and somewhat twisted apically, pubescent with long slender hairs in basal half of lobes adaxially, abaxial face glabrous
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium raised on a stipe 1–1.5 mm long
Morphology Reproductive morphology Flowers Corona
Corona forming a fluted cylinder surrounding and obscuring the gynostegium, ± 2 mm long with longitudinal ridges on the inner face, divided apically into ten erect, acute lobes 0.5–1 mm long arising in both staminal and interstaminal positions
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther wings 0.3–4 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Apex of stylar head not exserted from staminal column
Morphology Reproductive morphology Flowers Pollinarium
Pollinaria with corpusculum ± 0.3 mm × 0.2 mm with thin lateral wings; translator arms ± 0.15 mm long, flattened and geniculate.
Morphology Reproductive morphology Flowers Pollinia
Pollinia ovoid, ± 0.4 mm long, attached apically to translator arms
Morphology Reproductive morphology Fruits
Follicles mostly in widely divergent pairs, fusiform, 5–6 cm long, with three longitudinal wings ± 0.5 cm wide running the entire length of the follicle, smooth, glabrous
Morphology Reproductive morphology Seeds
Seeds flattened, ± 6 × 3 mm, smooth and with a marginal rim ± 0.5 mm wide; coma 1.5–2 cm long
Figures
Fig 114, p 467
Ecology
Mostly on granite or limestone outcrops in dry Acacia bushland or degraded forest patches; sea level to 1500 m
Distribution
Flora districts: U4 K1 K4 K6 K7 T1 T2 T6 Range: From Somalia, Ethiopia, Sudan and Kivu in E Congo southwards through Malawi and Zimbabwe to the NE of South Africa

[FSOM]

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

Morphology General Habit
Plants erect to decumbent, 0.5–4 m high; stems 5–7 mm in diam. Leaf-blades 3.5–8 cm x 3–7.5 cm, cordate, acute at the apex, glabrous; petiole 2–4 cm long
Morphology Reproductive morphology Inflorescences
Inflorescences 15–30-flowered, 3–12 flowers open at the same time; peduncles 3.5–5.5 mm long; pedicels 6–8 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla-lobes c. 5 x 1 mm, oblong, yellow, sometimes purple at base
Morphology Reproductive morphology Flowers Corona
Corona white, 3.5–4 mm high, exceeding the gynostegium but not obscuring it, staminal and interstaminal parts fused for more than 3/4 of corona length, free parts of staminal lobes ovate to 2-fid, free parts of interstaminal lobes ovate to oblong
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium c. 1 x 1.5 mm, on top of c. 1.5–1.8 mm long stipe; connective appendages c. 0.4 x 0.25 mm, triangular; stigmatic head c. 1 x 0.5 mm, flat
Morphology Reproductive morphology Fruits
Follicles c. 4.5 cm long, winged
Morphology Reproductive morphology Seeds
Seeds c. 6.5 x 3.5 mm, winged, with tuft of c. 2 cm long hairs.
Distribution
N1 Eritrea, Ethiopia, Sudan, and drier parts of eastern Africa southwards to Zimbabwe and South Africa.
Ecology
Altitude range 1200–1700 m.

Native to:

Angola, Eritrea, Ethiopia, Kenya, Malawi, Northern Provinces, Somalia, Sudan, Tanzania, Uganda, Zaïre, Zimbabwe

Schizostephanus alatus Hochst. ex K.Schum. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Schimper [1687], Ethiopia K000305192 Unknown type material
Gillett, J.B. [13125], Kenya Cynanchum validum 1908.000
Gillett, J.B. [13453], Kenya Cynanchum validum 1909.000
Greenway, P.J. [10,727], Tanzania Cynanchum validum 26676.000

First published in Bot. Jahrb. Syst. 17: 139 (1893)

Accepted by

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • 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.
  • Hedberg, I., Edwards, S. & Nemomissa, S. (eds.) (2003). Flora of Ethiopia and Eritrea 4(1): 1-352. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by S. Liede-Schumann [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • E.J. 17: 139 (1893)
  • Fl. Eth. 4(1): 136 (2003)
  • Fl. Somalia 3: 160, fig. 112 (2006).

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

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