Raphionacme borenensis Venter & M.G.Gilbert

This species is accepted, and its native range is N. Somalia to CN. Kenya.

[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.
Vegetative Multiplication Tubers
Tuber massive, turnip-like.
Morphology Stem
Aerial stems erect, branching lateral
Morphology Leaves
Leaf petiole 1–2 mm long; blade ovate to broadly ovate to obovate, 2.5–7.5 × 1.5–3 cm, acute to auminate, base cuneate, above glabrous to puberulous, green with lustre, beneath puberulous, dull green to green flushed purple, margin wavy
Morphology Reproductive morphology Inflorescences
Inflorescences terminal to sub-terminal, 2–3-flowered, sparsely to densely puberulous; peduncle 2–10 mm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 3–4 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals ovate to triangular, 1–2 × ± 1 mm, puberulous
Morphology Reproductive morphology Flowers Corolla
Corolla tube campanulate, 4 mm long, outer side puberulous; lobes spreading, purple, ovate, 5–7 × 2–4 mm, acute to obtuse
Morphology Reproductive morphology Flowers Corona
Corona lobes whitish, unsegmented, upper part filiform, 5–12 mm long, feet dilated
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal filaments broadly semi-deltoid, 1–2 mm long, basally fleshy, terminally shortly filiform.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers narrowly ovate, ± 2 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Style 2–3 mm long; style-head broadly ovoid, 2–3 mm long; translators 2 mm long
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium base in corolla mouth
Morphology Reproductive morphology Fruits
Follicles slender, fusiform, the pair horizontal
Morphology Reproductive morphology Seeds
Seeds not known.
Ecology
Acacia- Commiphora bushland on limestone, in full sun or partial shade, usually in rather bare, stony ground; 750–1600 m
Note
Raphionacme borenensis is known from just N of the Kenya/Ethiopia border and could well be present in Kenya.
Distribution
Flora districts: K 1? Range: Ethiopia, Somalia

[FSOM]

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

Morphology General Habit
Herb from massive tuber, usually broader than long; aerial stems erect, up to 7 cm long
Morphology Leaves
Leaves with 1–2 mm long petiole; blade ovate, broadly ovate or obovate, 25–75 x 15–30 mm, acute to obtuse-mucronate at the apex, cuneate to rounded at the base, green and shiny above, dull green to green flushed purple below
Morphology Reproductive morphology Inflorescences
Inflorescences terminal to subterminal, 2–3-flowered; peduncle 2–10 mm long; pedicels 3–4 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals 1–2 x 1–1.5 mm, ovate to triangular
Morphology Reproductive morphology Flowers Corolla
Corolla-tube c. 4 mm long, campanulate; lobes spreading, 5–7 x 2–4 mm, ovate, purple, obtuse to acute
Morphology Reproductive morphology Flowers Corona
Corona-lobes 5–12 mm long, filiform, simple, whitish
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Staminal filaments 1–1.5 mm long, fleshy, laterally broadened, fused or not with corolla-lobes into pouches around bases of corona-lobes
Morphology Reproductive morphology Fruits
Follicles paired, horizontal, narrowly ovoid.
Distribution
N3; S Ethiopia, N Kenya
Ecology
Altitude c. 750 m.

Native to:

Ethiopia, Kenya, Somalia

Raphionacme borenensis Venter & M.G.Gilbert appears in other Kew resources:

First published in Bot. J. Linn. Soc. 99: 401 (1989)

Accepted by

  • Albers, F. & Meve, U. (eds.) (2002). Illustrated handbook of succulent plants Asclepiadaceae, corr. 2nd printing: 1-318. Springer, Berlin, Heidelberg,New York.
  • 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.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Literature

Kew Backbone Distributions

  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by J. Venter [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • Fl. Eth. 4(1): 108 (2003)
  • Fl. Somalia 3: 140 (2006).
  • J.L.S. 99: 401 (1989)

  • 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 2022. 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 2022. 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