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

[FTEA]

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

Morphology General Habit
Tree to 15(–20) m. high, trunk simple or with a few ascending branches, to 30 cm. in diameter; bark grey and marked with 6–8 vertical lines of pits, being the scars of fallen branches; branches terminating in small fairly dense clusters of secondary branches 1–3 m. long, each with further whorls of branchlets; terminal branchlets fleshy, 3–4-angled, 1.5–3.5 cm. wide, deeply winged, slightly constricted at irregular intervals of 10–30 cm.; angles straight to sinuately toothed, with teeth 1–1.5 cm. apart.
Morphology General Spines
Spine-shields shortly triangular, 1 × 2.5 mm. above the spines, decurrent for 1–3 mm.; spines 2–7 mm. long; prickles minute, at first triangular, flexible, attached to the leaf-bases, later hardening and usually vestigial.
Morphology Leaves
Leaves deltoid, ± 2 × 1.3 mm.
Morphology Reproductive morphology Inflorescences
Cymes solitary, 1-forked, subsessile; bracts deltoid, ± 1.5 × 1.5 mm.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia ± 2 × 5 mm., with cup-shaped involucres, all parts ivory-white; glands transversely elliptic, ± 1.5 × 2.2 mm., the inner margin slightly raised, just touching; lobes subcircular, 1 mm. in diameter.
sex Male
Male flowers:bracteoles spathulate, plumose; stamens 3.5 mm. long.
Morphology Reproductive morphology Flowers
Female flower:styles 1.5 mm. long, joined for 0.5 mm., apices thickened, rugose, ± bifid. Male flowers:bracteoles spathulate, plumose; stamens 3.5 mm. long.
sex Female
Female flower:styles 1.5 mm. long, joined for 0.5 mm., apices thickened, rugose, ± bifid.
Morphology Reproductive morphology Fruits
Capsule exserted on a slightly curved pedicel to 5 mm. long, obtusely 3-lobed, ± 5 × 7 mm.
Morphology Reproductive morphology Seeds
Seeds ovoid, 3.5 × 2.8 mm., grey, smooth.
Habitat
Rocky slopes and gneiss outrops with open deciduous bushland; 400–1300 m.
Distribution
T3 T6 not known elsewhere

Native to:

Tanzania

Euphorbia quadrialata Pax appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bally, P.R.O. [5806], Tanzania 5247.000
Busse, W. [49 [319]], Tanzania K000253005
Iversen, S.T. [87522], Tanzania K000453312

First published in Bot. Jahrb. Syst. 33: 286 (1903)

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

  • Bally in Kew Bulletin 28: 322 (1973).
  • 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): 188 (1912).
  • Pax in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 33: 286 (1903).

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