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This species is accepted, and its native range is Kenya to Mozambique.

[FTEA]

Euphorbiaceae, A. R.-Smith. Flora of Tropical East Africa. 1987

Morphology General Habit
Tree to 10(–15) m. high, with a simple or sometimes branching trunk, to 50 cm. in diameter, marked with ± loosely spiralled rows of persistent spines and deep pits resulting from the scars of fallen branches; bark flaking, grey-brown; branching dense to form a rounded slightly flattened crown; primary branches 2–4 m. long, spreading outwards and upwards, with whorls of secondary branches which occasionally branch again on larger trees, the lower ones deciduous; terminal branchlets fleshy, (3–)5(–6)-angled, 2–4(–7) cm. thick, ± constricted at intervals of 5–15 cm.; angles straight to sinuately toothed, with teeth 5–15 mm. apart.
Morphology General Spines
Spines 2–8(–10) mm. long; prickles vestigial or absent. Spine-shields oblong-triangular, to 1.5 × 2 mm. above the spines, narrowly decurrent to the flowering eye below and soon contiguous.
Morphology Leaves
Leaves deltoid, ± 2 × 2 mm.
Morphology Reproductive morphology Inflorescences
Cymes clustered at the branch apices, solitary or more usually 3 in a horizontal row, 1-forked, with thickened peduncles 2–3 mm. long arranged in a vertical plane; bracts deltoid, ± 1.8 × 2.5 mm.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia ± 2.2 × 4 mm., with cup-shaped involucres; glands transversely oblong, ± 1 × 2 mm., contiguous, golden yellow; lobes circular, 1 mm. in diameter.
sex Male
Male flowers:bracteoles fan-shaped, deeply toothed, plumose; stamens 4.2 mm. long.
Morphology Reproductive morphology Flowers
Female flower:styles 1.2 mm. long, joined to halfway, apices much thickened, bifid. Male flowers:bracteoles fan-shaped, deeply toothed, plumose; stamens 4.2 mm. long.
sex Female
Female flower:styles 1.2 mm. long, joined to halfway, apices much thickened, bifid.
Morphology Reproductive morphology Fruits
Capsule exserted on a pedicel to 7 mm. long, deeply 3-lobed, with truncate base, ± 4.5 × 7 mm.
Morphology Reproductive morphology Seeds
Seeds subglobose, 2.4 × 2.2 mm., grey-mottled, smooth.
Figures
Fig. 93/4, 5, p. 496.
Habitat
Rocky hillsides, usually the dominant tree in mixed deciduous woodland; 600–1220 m.
Distribution
K4 K7 T2 T3 T6 not known elsewhere

Native to:

Kenya, Mozambique, Tanzania

Euphorbia quinquecostata Volkens appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bally, P.R.O. [E. 19], Tanzania 15778.000
Bally, P.R.O. [5759], Tanzania 16753.000
Greenway, P.J. [6489], Tanzania 2096.000
Kenya 21969.020
Verdcourt, B. [3891], Kenya 25094.000
Cribb, P. [10216], Tanzania 37611.000

First published in Notizbl. Bot. Gart. Berlin-Dahlem 2: 266 (1899)

Accepted by

  • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Flora of Tropical East Africa

  • Dale & Greenway, Kenya Trees and Shrubs p. 200 (1961).
  • J.P.M. Brenan, Check-lists of the Forest Trees and Shrubs of the British Empire no. 5, part II, Tanganyika Territory p. 213 (1949).
  • N.E. Br. in Flora of Tropical Africa 6(1): 579 (1912).
  • S. Carter in Kew Bulletin 42: 673 (1987).
  • Volk. in Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahelm 2: 266 (1899).

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

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