Uapaca robynsii De Wild.

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Photo: Jos Stevens
Ferme Randu, southwest Katanga Province, DRC

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Synonyms:	Uapaca benguelensis sensu Topham, non Müll. Arg.
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Description:	An often stunted, spreading shrub or small tree up to 7 m high, with gnarled divaricate branches often arising from near the ground; bark deeply-fissured, grey to black or brownish-black.Young twigs stout 1–1.5 cm in diameter, densely woolly. Leaves broadly obovate to suborbicular-obovate, sometimes elliptic-oblong, saddle-shaped, 6–23 cm long, thickly leathery, dark or dull grey-green and hairless above, except on the midrib and lateral nerves when young, densely whitish or rusty woolly beneath, midrib often bright yellow; lateral nerves in 10–18 pairs, often almost perpendicular to the midrib, not prominent or slightly impressed above, not or scarcely prominent beneath; margin entire or rarely undulate-sinuate; petioles 1–8 cm long, fairly stout. Stipules subulate-filiform, 1–2.5 cm long, densely hairy, soon falling. Inflorescences usually borne among or just below the leaves. Male flowers on peduncles 1–2 cm long, calyx lobes 5; stamens 5, creamy-yellow. Female flowers on peduncles 3–4 mm long, extending to 5 mm in fruit, pubescent, calyx 4 mm in diameter, scarcely lobed. Fruits ellipsoid, 3 × 2.5 cm, smooth, densely rusty hairy when young, yellowish when fresh, reddish-brown when dried.
Notes:
Derivation of specific name:	robynsii: after (Frans Hubert Edouard Arthur) Walter Robyns (1901-1986), Belgian botanist and former Director of the Jardin Botanique National de Belgique (National Botanic Garden of Belgium).
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Worldwide distribution:	Katanga, DRC, Zambia and northern Malawi.
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Literature:	Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 151. (Includes a picture). Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 51. Radcliffe-Smith, A. (1996). Euphorbiaceae Flora Zambesiaca 9(4) Page 102.

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Flora of Malawi: Uapaca robynsii
Flora of Zambia: Uapaca robynsii

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African Plants: A Photo Guide (Senckenberg): Uapaca robynsii
BHL (Biodiversity Heritage Library): Uapaca robynsii
EOL (Encyclopedia of Life): Uapaca robynsii
GBIF (Global Biodiversity Information Facility): Uapaca robynsii
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iNaturalist: Uapaca robynsii
IPNI (International Plant Names Index): Uapaca robynsii
JSTOR Plant Science: Uapaca robynsii
Mansfeld World Database of Agricultural and Horticultural Crops: Uapaca robynsii
Plants of the World Online: Uapaca robynsii
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Wikipedia: Uapaca robynsii