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

[FTEA]

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

Morphology General Habit
An erect or spreading woody herb or shrub up to 2 m. tall.
Morphology General Shoots
Young shoots and petioles evenly or sparingly adpressed pubescent.
Morphology Leaves
Petioles (0.5–)1–4(–5.5) cm. long, with 2 small glandular ovoid stipels at the apex; leaf-blade lanceolate or ovate-lanceolate, 3–15 cm. long, 1–5 cm. wide, sharply acutely acuminate at the apex, rounded or broadly cuneate at the base, glandular crenate-serrate, membranous, lateral nerves 4–7 pairs, the 2 lowest often close together, the upper remote, ascending and inwardly-arching, impressed above, minutely tuberculate above and beneath, subglabrous or sparingly pubescent only along the midrib above and along the midrib and main veins beneath, purplish when young, later becoming medium yellowish green above and paler beneath.
Morphology Leaves Stipules
Stipules gland-like, resembling the stipels, 0.5 mm. long.
Morphology Reproductive morphology Inflorescences
Inflorescences bisexual, (3–)6–10 cm. long, long-pedunculate, usually ♂ with one ♀ flower at the top, rarely more; axis sparingly adpressed pubescent; bracts lanceolate, 2 mm. long, acute, membranous, subglabrous; clusters few-flowered; bracteoles minute, 1–2-flowered.
Morphology Reproductive morphology Flowers
Male flowers:pedicels articulate, capillary, 1.5–2 mm. long, glabrous; buds depressed-globose, minutely apiculate; calyx-lobes 3, ovate, 1.5 mm. long, subacute, glabrous, greenish purple; stamens 20–30, multiseriate, filaments 0.5 mm. long, purple, anthers minute, cream, pinkish tinged; disc-glands 0. Female flowers:pedicels 1.5–2 mm. long; calyx-lobes 3, ovate-lanceolate, 4 mm. long, acute, glabrous, green; disc-glands 3, linear-ligulate, occasionally bifid, 1.5 mm. long; ovary trilobate, 2 mm. diameter, microscopically papillose, glabrous, dark purple; styles 1 mm. long, glabrous, purple.
sex Male
Male flowers:pedicels articulate, capillary, 1.5–2 mm. long, glabrous; buds depressed-globose, minutely apiculate; calyx-lobes 3, ovate, 1.5 mm. long, subacute, glabrous, greenish purple; stamens 20–30, multiseriate, filaments 0.5 mm. long, purple, anthers minute, cream, pinkish tinged; disc-glands 0.
sex Female
Female flowers:pedicels 1.5–2 mm. long; calyx-lobes 3, ovate-lanceolate, 4 mm. long, acute, glabrous, green; disc-glands 3, linear-ligulate, occasionally bifid, 1.5 mm. long; ovary trilobate, 2 mm. diameter, microscopically papillose, glabrous, dark purple; styles 1 mm. long, glabrous, purple.
Morphology Reproductive morphology Fruits
Fruit roundly trilobate, 3 mm. long, 4 mm. wide, ± smooth, glabrous, purple or green.
Morphology Reproductive morphology Seeds
Seeds ovoid-conoidal, 2.5 mm. long, 2 mm. wide, foveolate-reticulate, purplish at first, grey when mature.
Habitat
Undergrowth of upland evergreen forest; 1150–2520 m.
Distribution
not known elsewhere T2 T3 T6

Native to:

Tanzania

Micrococca volkensii (Pax) Prain appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Grimshaw, J.M. [93996], Tanzania K000453323
Volkens, G. [1001], Tanzania K000431059 isotype
Ryvarden, L. [5273], Tanzania K000453324

First published in Ann. Bot. (Usteri) 25: 631 (1911)

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, t. 31 (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): 136 (1914).
  • Prain in Ann. Bot. 25: 631 (1911)
  • Prain in Flora of Tropical Africa 6(1): 877 (1912).

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