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This genus is accepted, and its native range is Tanzania, Namibia.
A specimen from Kew's Herbarium

[FSOM]

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

Morphology General Habit
Branched shrubs, sometimes with twining shoots, short shoots very leafy; latex white
Morphology Leaves
Leaves shortly petiolate, ovate, ovate-lanceolate, elliptic, or spathulate, softly pubescent
Morphology Reproductive morphology Inflorescences
Inflorescences extra-axillary, sessile or shortly pedunculate umbels or clusters with up to 12 flowers; pedicels very short
Morphology Reproductive morphology Flowers Calyx
Sepals ovate or elliptic, softly pubescent
Morphology Reproductive morphology Flowers Corolla
Corolla lobed to middle, campanulate, outside smooth, inside densely hairy, base adnate to gynostegium
Morphology Reproductive morphology Flowers Corona
Corolline corona absent Gynostegial corona-lobes staminal, basally adnate to the back of the anthers, dorsiventrally flattened
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther membranes elliptic-lanceolate, ± pointed
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigmatic head elongated and tapering
Morphology Reproductive morphology Flowers Pollinarium
Pollinia erect, ovoid, attached basally to horizontally oriented translator arms; corpusculum elongated
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpel with 2 seed chambers for each follicle
Morphology Reproductive morphology Fruits
Follicles single or paired at 120º, smooth or with an irregular knobbly ridge near the base, beaked; seeds usually one per follicle, with a tuft of hairs at one end.
Distribution
Two or three disjunct species in tropical and subtropical Africa.

[FTEA]

Apocynaceae (part 2), David Goyder, Timothy Harris, Siro Masinde, Ulrich Meve, Johan Venter. Flora of Tropical East Africa, 2012

Morphology General Habit
Branched shrubs, sometimes with twining shoots, short shoots very leafy.
Morphology General Exudate
Latex white
Morphology Leaves
Leaves opposite
Morphology Reproductive morphology Inflorescences
Inflorescences extra-axillary, sessile or shortly pedunculate umbels or clusters with up to 12 flowers.
Morphology Reproductive morphology Flowers Pedicel
Pedicels very short
Morphology Reproductive morphology Flowers Corolla
Corolla lobed to middle, campanulate, outside smooth, inside densely hairy, base adnate to gynostegium
Morphology Reproductive morphology Flowers Corona
Corolline corona absent or reduced to thickened ridges in the corolla tube
Morphology Reproductive morphology Flowers Gynostegium
Gynostegial corona-lobes staminal, basally adnate to the back of the anthers, dorsiventrally flattened
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther membranes elliptic-lanceolate, ± pointed.
Morphology Reproductive morphology Flowers Gynoecium Style
Stylar head elongated and tapering
Morphology Reproductive morphology Flowers Pollinia
Pollinia erect, ovoid, attached basally to horizontally oriented translator arms; corpusculum elongated
Morphology Reproductive morphology Fruits
Follicles single or paired, smooth or with an irregular knobbly ridge near the base, beaked.
Morphology Reproductive morphology Seeds
Seed usually one per follicle, with a coma of hairs at one end.

Native to:

Namibia, Tanzania

Stigmatorhynchus Schltr. appears in other Kew resources:

First published in Bot. Jahrb. Syst. 51: 141 (1913)

Accepted by

  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.

Literature

Flora of Somalia

  • Bullock in Kew Bull. 9: 349–373 (1954).
  • Flora Somalia, Vol 3, (2006) Author: by D. Goyder [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • E.J. 51: 141 (1913)
  • K.B. 9: 349–373 (1954)

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

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