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This species is accepted, and its native range is S. KwaZulu-Natal to Cape Prov.
A specimen from Kew's Herbarium

[KBu]

P. Siro Masinde. (2005). A Revision of the African Genus Riocreuxia Decne. (Apocynaceae: Asclepiadoideae-Ceropegieae). Kew Bulletin, 60(3), 401-434. Retrieved from http://www.jstor.org/stable/4111063

Morphology General Habit
A sparsely hairy, leafy climber, 1 m or more high
Morphology Leaves
Leaves herbaceous, spreading; petiole 8 - 40 mm long, terete, pubescent all round or only along rims of adaxial channel; lamina 20 - 75 x 12 - 55 mm, broadly or elongated ovate, base deeply cordate, apex acuminate; with a broad subtruncate sinus between the semiorbicular incurved or overlapping basal lobes; sparsely and rather minutely pubescent on both sides to more or less glabrescent, lower surface sometimes more densely pubescent, margin entire, ciliolate
Morphology Reproductive morphology Flowers Calyx
Sepals linear-subulate, 2 - 3 x 0.3 - 0.5 mm at base, glabrous
Morphology Reproductive morphology Flowers Corolla
Corolla 7 - 12 mm long, straight, glabrous throughout; tube subcylindric, ± contracted at mouth, 3 - 5 mm long x 2 - 4(- 5) mm diam.; exterior whitish or pale yellow interior probably similarly coloured: lobes linear or linear-filiform, 4 - 6 x 0.3 - 0.5 mm wide at base, arching to connate tips to form an ellipsoid or subglobose cage-like structure 4 - 5 mm diam., pale yellowish or somewhat orange at base and purple brown much of the length above
Morphology Reproductive morphology Flowers Corona
Corona ± subglobose, c. 1.5 x 1.5 mm, subsessile or shortly stipitate, biseriate, yellow, glabrous throughout; outer lobes deeply divided with margins of notch somewhat thickened and recurved to give a V-shape at centre with 'teeth'/lobules ± face-to-face, c. 0.4 mm wide x 0.3 mm deep (in var. flanaganii) or outer lobes narrowly triangular or ± oblong, upcurving-erect as high as or higher than stylar head with apex obtuse or bifid, c. 1.2 x 0.5 mm broad at base (in var. alexandrina); inner lobes dorsiventrally compressed, subulate or linear, c. 0.8 - 1 x c. 0.2 - 0.5 mm, incumbent on the backs of anthers and much or slightly exceeding them, with apices crossing each other or ± connivent; guide rails, c. 200 μm long
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels glabrous
Morphology Reproductive morphology Flowers Pollinarium
Pollinia c. 290 - 400 x 160 μm, elliptic. oblong with an acute pellucid margin at apex; corpusculum elliptic, 140 x 60 μm
Morphology Reproductive morphology Fruits
Follicles paired, acutely divergent, cylindrical, apically tapering, c. 115 x 3 mm diam. at centre, only slightly beaded; seed dorsiventrally compressed, linear- oblong, c. 10 x c. 2 mm, dark brown or blackish with a paler margin, concave on one side; coma c. 20 mm long.
Morphology Reproductive morphology Inflorescences
Inflorescence of short compact sessile, subsessile or rarely shortly pedunculate umbellate cymes up to 15 (- 20) mm long; bracts subulate, c. 2 - 3 mm long, glabrous; peduncle 0 - 3(- 15) mm long, c. 1 mm diam., puberulous or glabrous, with 1(- 2) rather dense ± terminal clusters of flowers, 5 - 15-flowered; pedicels 2 - 6 mm, c. 0.3 mm diam., sparsely pubescent or glabrous
Morphology Stem
Stem produced annually, twining, branching, stout in older parts; nodes with a distinct ring of simple, whitish/brownish-translucent multicellular hairs; internodes 15 - 110 mm long, 1.5 - 3 mm diam., uni- or bifariously pubescent
Type
South Africa, Cape, near Komga, Flanagan 381 (B†, holotype, PRE. As part of the original material of R. flanaganii was rediscovered, Huber's designation of Pegler 214 (K, 2 sh.!). as neotype (Huber 1958: 169) is now redundant.

Native to:

Cape Provinces, KwaZulu-Natal

Riocreuxia flanaganii Schltr. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jun 7, 1907 Pegler, A. [214], South Africa K000305697 neotype
Pegler, A. [214], South Africa K000305698

First published in Beibl. Bot. Jahrb. Syst. 45: 13 (1894)

Accepted by

  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Styles, D. & McDonald, G. (2009). New provincial records for KwaZulu-Natal: Riocreuxia flanaganii and Gnidia racemosa PlantLife 37-38: 56-63.

Literature

Kew Backbone Distributions

  • Styles, D. & McDonald, G. (2009). New provincial records for KwaZulu-Natal: Riocreuxia flanaganii and Gnidia racemosa PlantLife 37-38: 56-63.

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 Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/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