Pleioceras orientale Vollesen

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Photo: Bart Wursten
Southern margin of Inhamitanga Forest near railway line, Coutada 12, Cheringoma

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Synonyms:
Common names:
Frequency:
Status:	Native
Description:	Tree with pale brown bark and milky latex present. Branchlets densely hairy. Leaves narrowly ovate or obovate, 3·5–14·5 x 1–5·5 cm, 2·6–3·5 times as long as wide, somewhat leathery, finely velvety above, woolly hairy beneath especially on the main veins; petiole 3–5 mm long, densely hairy. Inflorescences several-flowered, 4·5-6·5 cm long; peduncle 1–2 cm long, hairy or rarely almost hairless. Sepals 1–1·7 times as long as wide, 2–3 x 1–2 mm., sparsely pubescent outside, hairless inside. Corolla with tube 6–9 mm long and 2·5–4 mm in diameter, 3–4 times as long as the calyx, dark violet; lobes, 7·5–11 mm long and 4–6 mm wide, minutely pubescent outside, papillose inside, yellow with brownish-violet at the apex. Corolla mouth adorned with a complex set of 7 appendages with some short, oblong, 0·5–1·5 mm long and others long and broom-like, filiform, 7–9 mm long, branched, hairless. Fruit with follicles 20–30 cm long and 5–7 mm in diam, dark green. Seeds with a dense tuft of long hairs at the apex.
Notes:
Derivation of specific name:	orientale: Eastern.
Habitat:	Dry forest, coastal forests and thickets, mostly on sand.
Altitude range:	200 - 400 m
Flowering time:
Worldwide distribution:	Tanzania and Mozambique.
Mozambique distribution:	Z,MS
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Content last updated:	Sunday 6 May 2018
Literature:	Burrows, J.E., Burrows, S.M., Lötter, M.C. & Schmidt, E. (2018). Trees and Shrubs Mozambique Publishing Print Matters (Pty), Cape Town. Page 814. (Includes a picture). Coates Palgrave, K. (revised and updated by Meg Coates Palgrave) (2002). Trees of Southern Africa 3rd edition. Struik, South Africa Page 965. Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 26. Erroneously as Pleiocarpa orientale Leeuwenberg, A.J.M. & Kupicha, F.K. et al. (1985). Apocynaceae Flora Zambesiaca 7(2) Pages 483 - 484. (Includes a picture).

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External websites:

African Plants: A Photo Guide (Senckenberg): Pleioceras orientale
African Plant Database: Pleioceras orientale
BHL (Biodiversity Heritage Library): Pleioceras orientale
EOL (Encyclopedia of Life): Pleioceras orientale
GBIF (Global Biodiversity Information Facility): Pleioceras orientale
Google: Web - Images - Scholar
iNaturalist: Pleioceras orientale
IPNI (International Plant Names Index): Pleioceras orientale
JSTOR Plant Science: Pleioceras orientale
Mansfeld World Database of Agricultural and Horticultural Crops: Pleioceras orientale
Plants of the World Online: Pleioceras orientale
Tropicos: Pleioceras orientale
Wikipedia: Pleioceras orientale