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This species is accepted, and its native range is W. Tanzania.
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 herb.
Morphology Stem
Stems 15–35 cm long
Morphology Leaves
Leaves petiolate or subsessile; petiole 0–6 mm long; lamina slightly fleshy, lanceolate- to ovate-oblong, (3.5–)5–7 × 1–2.1(–2.6) cm, apex acute or subacute, apiculate, glabrous, lateral veins obscure or clearly visible, neither impressed nor raised, parallel to each other and at ± 90° to the midrib
Morphology Reproductive morphology Inflorescences
Umbels with 2–6 flowers.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles 1–7 mm long, pubescent on one side.
Morphology Reproductive morphology Inflorescences Bracts
Bracts filiform, 3–5 mm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 10–18 mm long, pubescent
Morphology Reproductive morphology Flowers Calyx
Calyx lobes oblong or lanceolate to triangular, 5–7 × 1.5 mm
Morphology Reproductive morphology Flowers Corolla
Corolla green or cream; lobes ovate or oblong, 13–20 × 4–7 mm, apex acute or subacute, sometimes recurved.
Morphology Reproductive morphology Flowers Corona
Corona lobes attached to the gynostegium 1.5–2 mm above the base of the corolla, 1.5–2 × 1–1.5 mm, swollen at the base, with a slender horn at the top of the inner face, projecting upwards or inwards for up to 1 mm, the tip of the corona lobe ± level with the top of the column or sometimes slightly shorter.
Morphology Reproductive morphology Flowers Gynoecium Style
Stylar head projecting slightly above the top of the anthers; corpusculum black, ovoid, ± 0.6 mm long; translator arms ± 0.8 mm long, slender, flattened, contorted distally.
Morphology Reproductive morphology Flowers Pollinia
Pollinia broadly oblong but rounded distally, ± 0.7 × 0.5 mm
Morphology Reproductive morphology Fruits
Follicles (very immature) densely rufous-pubescent; mature follicles not seen
Ecology
Montane grassland; 2000–2500 m. Flowering November to December
Note
At first sight this species could easily be confused with an extreme form of G. spathulatum but the corona lobes differ structurally - the lateral teeth are absent from the inner face and the peg at the top is a much more pronounced structure than the upper tooth of G. spathulatum and is oriented quite differently. Differences in both the shape and colouring of the corolla lobes correlate with the coronal morphology and there is also a temporal difference in flowering.
Distribution
Range: Endemic to Mbisi Forest and the Sumbawanga area Flora districts: T4

Native to:

Tanzania

Glossostelma mbisiense Goyder appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1995 Sanane, M. [1426], Tanzania K000234366 holotype

First published in Kew Bull. 50: 543 (1995)

Accepted by

  • Govaerts, R. (2003). World Checklist of Seed Plants Database in ACCESS G: 1-40325.
  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.

Literature

Flora of Tropical East Africa

  • K.B. 50: 543 (1995).

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