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This species is accepted, and its native range is SE. Kenya, E. Tanzania (incl. Zanzibar), Mozambique.
A specimen from Kew's Herbarium

[FZ]

Euphorbiaceae, A. Radcliffe-Smith. Flora Zambesiaca 9:4. 1996

Morphology General Habit
A small tree up to 4 m high.
Morphology Twigs
Twigs sparingly lenticellate, puberulous and greenish at first, later glabrescent and dark grey.
Morphology Leaves Petiole
Petioles 2–13 mm long, puberulous.
Morphology Leaves Leaf lamina
Leaf blade 5.5–21 × 2–8 cm, elliptic-ovate, shortly acuminate apically, remotely shallowly crenate to subentire, rounded or rounded-cuneate at the base, chartaceous, glabrous on both surfaces except for the pubescent domatia; basal glands minute, subulate; lateral nerves in 5–10 pairs, looped.
Morphology Leaves Stipules
Stipules 3–6 mm long, subulate, puberulous, soon falling.
sex Male
Male flowers shortly pedicellate; calyx lobes 2–3(4), 1 × 0.7 mm, suborbicular-ovate, subacute, glabrous; disk glands minute, numerous, angular, pilose; stamens 17, 1 mm long, filaments twisted, anthers 0.3 mm wide. Male inflorescences up to 11 cm long; axis angular; bracts 2.5 × 1.5 mm, ovate-lanceolate, acute, entire, chaffy, many-flowered; bracteoles similar, but smaller.
Morphology Reproductive morphology Inflorescences
Female inflorescences up to 8 cm long; bracts somewhat longer and narrower than in the male; bracteoles each subtending a solitary flower. Male inflorescences up to 11 cm long; axis angular; bracts 2.5 × 1.5 mm, ovate-lanceolate, acute, entire, chaffy, many-flowered; bracteoles similar, but smaller.
Morphology Reproductive morphology Flowers
Female flowers: pedicels 3 mm long, extending to 5–7 mm in fruit; calyx lobes 5, 1 mm long, triangular, acute; disk glands 6, 0.5 mm long, transversely ovate, scale-like, free, contiguous; ovary 1 mm in diameter, 3-lobed, ± smooth, venose, glabrous; styles 1.5–2 mm long, tawny. Male flowers shortly pedicellate; calyx lobes 2–3(4), 1 × 0.7 mm, suborbicular-ovate, subacute, glabrous; disk glands minute, numerous, angular, pilose; stamens 17, 1 mm long, filaments twisted, anthers 0.3 mm wide.
sex Female
Female flowers: pedicels 3 mm long, extending to 5–7 mm in fruit; calyx lobes 5, 1 mm long, triangular, acute; disk glands 6, 0.5 mm long, transversely ovate, scale-like, free, contiguous; ovary 1 mm in diameter, 3-lobed, ± smooth, venose, glabrous; styles 1.5–2 mm long, tawny. Female inflorescences up to 8 cm long; bracts somewhat longer and narrower than in the male; bracteoles each subtending a solitary flower.
Morphology Reproductive morphology Fruits
Fruit 6–7 × 11–12 mm, roundly 3-lobed, ± smooth, venose, glabrous, sometimes tinged pinkish.
Morphology Reproductive morphology Seeds
Seeds 6 × 5 mm, subglobose, smooth, dark reddish-brown, mottled pale greyish or whitish.

[FTEA]

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

Morphology General Habit
A glabrous shrub or small tree up to 7.5 m. tall, but more commonly 1.5–3.5 m. tall.
Morphology Twigs
Young twigs smooth, greenish brown; older ones dark greyish brown.
Morphology Leaves
Petioles 0.2–1.1 cm. long; leaf-blade ovate to elliptic-ovate, 6–15.5 cm. long, 2–8 cm. wide, acutely or subacutely shortly acuminate, rounded at the base, remotely crenate-toothed or subentire, chartaceous, lateral nerves 7–8 pairs, the lowest 2 or 3 pairs close together and not looped, the upper remoter and looped, bright or deep green and glossy above, paler beneath.
Morphology Leaves Stipules
Stipules subulate, 5–9 mm. long.
sex Male
Male inflorescences up to 19 cm. long; bracts lanceolate, 2 mm. long, sharply acute, rigid, ciliate, closely applied to the axis; clusters tight; bracteoles numerous, scarious. Male flowers opening one at a time, short-lived; pedicels articulate, 1 mm. long; calyx-lobes 2–3, suborbicular, 1 mm. long, rounded, creamy white; stamens 15–25, multiseriate, filaments 1–1.5 mm. long, pale yellow, anthers minute, yellow; disc-glands ovoid.
Morphology Reproductive morphology Inflorescences
Female inflorescences 3–8 cm. long; bracts narrowly lanceolate, 3 mm. long, sharply acute, rigid, closely applied to the axis; bracteoles 2 per bract, ciliate, subtending a solitary flower. Male inflorescences up to 19 cm. long; bracts lanceolate, 2 mm. long, sharply acute, rigid, ciliate, closely applied to the axis; clusters tight; bracteoles numerous, scarious.
sex Female
Female inflorescences 3–8 cm. long; bracts narrowly lanceolate, 3 mm. long, sharply acute, rigid, closely applied to the axis; bracteoles 2 per bract, ciliate, subtending a solitary flower. Female flowers:pedicels articulate, 3 mm. long, extending to 5–7 mm. in fruit; calyx-lobes 5, triangular, 1 mm. long, acute, green; disc-glands 6, transversely ovate, scale-like, free, contiguous, 0.5 mm. long; ovary trilobate, 1 mm. diameter, smooth or ± so, veined; styles 1.5–2 mm. long, tawny.
Morphology Reproductive morphology Flowers
Female flowers:pedicels articulate, 3 mm. long, extending to 5–7 mm. in fruit; calyx-lobes 5, triangular, 1 mm. long, acute, green; disc-glands 6, transversely ovate, scale-like, free, contiguous, 0.5 mm. long; ovary trilobate, 1 mm. diameter, smooth or ± so, veined; styles 1.5–2 mm. long, tawny. Male flowers opening one at a time, short-lived; pedicels articulate, 1 mm. long; calyx-lobes 2–3, suborbicular, 1 mm. long, rounded, creamy white; stamens 15–25, multiseriate, filaments 1–1.5 mm. long, pale yellow, anthers minute, yellow; disc-glands ovoid.
Morphology Reproductive morphology Fruits
Fruit roundly trilobate, 6–7 mm. long, 1.1–1.2 cm. wide, smooth, greenish-stramineous.
Morphology Reproductive morphology Seeds
Seeds subglobose, 6 mm. long, 5 mm. wide, smooth, brown, marbled with white.
Habitat
Forest and associated thickets on limestone; 10–170 m.
Distribution
not known elsewhere K7 T3 T6 Z

Native to:

Kenya, Mozambique, Tanzania

Micrococca scariosa Prain appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Drummond, R.B. [3595], Tanzania 5260.000
Sacleux, R.P. [1630], Tanzania K000431056
Sacleux, R.P. [1630], Tanzania K000431057
Sacleux, C. [1630], Tanzania K000431058

First published in Bull. Misc. Inform. Kew 1912: 192 (1912)

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

  • A. Engler & O. Drude, Die Vegetation Der Erde, IX, Pflanzenwelt Afrikas 3(2): 76 (1921).
  • J.P.M. Brenan, Check-lists of the Forest Trees and Shrubs of the British Empire no. 5, part II, Tanganyika Territory p. 220 (1949).
  • Pax in A. Engler, Das Pflanzenreich IV. 147(7): 132 (1914).
  • Prain in Bulletin of Miscellaneous Information, Kew 1912: 192 (1912)
  • Prain in Flora of Tropical Africa 6(1): 878 (1912).

Flora Zambesiaca
Flora Zambesiaca
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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