Edit History
Pleioceras orientale Vollesen [family APOCYNACEAE]
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 7, Part 2, (1985) Author: A. J. M. Leeuwenberg and F. K. Kupicha et al.
Names
Pleioceras orientale Vollesen [family APOCYNACEAE], in Bot. Tidsskr. 75: 59, tab. 2 (1980). — Barink in Meded. Landb. Wag. 83-7: 37, fig. 4, map 4 (1984). TAB. 114. Type from Tanzania.
Information
Tree, 5–8 m. high; bark pale brown. Branches pale to dark brown when dry; branchlets densely pilose. Leaves petiolate; petiole 3–5 mm. long, densely pilose; lamina narrowly ovate or obovate, 2·6–3·5 times as long as wide, 3·5–14·5 x 1–5·5 cm., subcoriaceous when dry, puberulous above, beneath tomentose especially on the main veins. Inflorescences several-flowered, 4·5-6·5 x 4–8·5 cm. Bracts 2·2-3 mm. long, pubescent or glabrous on both surfaces. Peduncle 1–2 cm. long, tomentose, rarely subglabrous; pedicels 7–15 mm. long, tomentose, rarely subglabrous. Sepals 1–1·7 times as long as wide, 2–3 x 1–2 mm., sparsely pubescent outside, glabrous inside with or without a colleter at the base near the edge. Colleters (in whole flower 3–5) large, triangular, 2·5 times as long as wide, 1 x 0·4 mm. Corolla 6–7 times as long as the calyx, 13·5–20 mm. long; tube dark violet, 3–4 times as long as the calyx, 6–9 mm. long, at the ventricose part 2·5–4 mm. in diam., inside below the pilose zone glabrous; lobes yellow, brownish-violet at the apex, 1·2–1·8 times as long as the tube, 1·8–2 times as long as wide, 7·5–11 x 4–6 mm., minutely pubescent outside, papillose inside. The set of appendages composed of 7 (the 1st and the 7th small, the 2nd and 3rd broom-like, the 4th, the central, much shorter, truncate and bearing three narrowly oblong lobes on the edges and in between the edges, the 5th and 6th again broom-like; the small ones oblong, 0·5–1·5 x 0·5 mm., ciliate, glabrous; the broom-like appendages long, filiform, 7–9 mm. long, glabrous, branched from 5–6 mm. above the base into 1–3 branches; the central one oblong, 2–3 x 0·3 mm., branched from 1·3-1·8 mm. above the base into 3 branches, sparsely pubescent). Stamens inserted 1·5–1·6 mm. below the mouth of the corolla; filaments 2·2–3 x 0·2 mm.; anthers 2·5–3·2 x 1 mm. Pistil 8–9 mm. long; ovary 1–1·5 x 0·6–0·8 x 0·5–1 mm., glabrous; style 6–8 x 0·2–0·3 mm., glabrous; clavun-cula 0·8–1 x 0·9–1 mm.; stigma 0·2–0·3 mm. long. Ovules 120–150 in each carpel. Fruit dark green; follicles 20–30 cm. long, 5–-7 mm. in diam. Seeds 10–18 x 1 x 0·2 mm., greenish, with a dense, 35 mm. long tuft of hairs at the apex.
Habitat
Lowland dry evergreen forest, deciduous coastal forest on sand and deciduous coastal thicket on sand.
Altitude range
Alt. 200–400 m.
400
200
Distribution
Mozambique Z 20 km. from Mopeia to Massingire, fr. 30.vii.1942, Torre 4463 (LISC).Mozambique MS 25 km. from Lacerdonia, N, of new railway 200 m., fl. 6.xii.1971, Müller & Pope 1924 (C; K; LISC; SRGH; WAG).
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 7, Part 2, (1985) Author: A. J. M. Leeuwenberg and F. K. Kupicha et al.
Names
Pleioceras orientale Vollesen [family APOCYNACEAE], in Bot. Tidsskr. 75: 59, tab. 2 (1980). — Barink in Meded. Landb. Wag. 83-7: 37, fig. 4, map 4 (1984). TAB. 114. Type from Tanzania.
Information
Tree, 5–8 m. high; bark pale brown. Branches pale to dark brown when dry; branchlets densely pilose. Leaves petiolate; petiole 3–5 mm. long, densely pilose; lamina narrowly ovate or obovate, 2·6–3·5 times as long as wide, 3·5–14·5 x 1–5·5 cm., subcoriaceous when dry, puberulous above, beneath tomentose especially on the main veins. Inflorescences several-flowered, 4·5-6·5 x 4–8·5 cm. Bracts 2·2-3 mm. long, pubescent or glabrous on both surfaces. Peduncle 1–2 cm. long, tomentose, rarely subglabrous; pedicels 7–15 mm. long, tomentose, rarely subglabrous. Sepals 1–1·7 times as long as wide, 2–3 x 1–2 mm., sparsely pubescent outside, glabrous inside with or without a colleter at the base near the edge. Colleters (in whole flower 3–5) large, triangular, 2·5 times as long as wide, 1 x 0·4 mm. Corolla 6–7 times as long as the calyx, 13·5–20 mm. long; tube dark violet, 3–4 times as long as the calyx, 6–9 mm. long, at the ventricose part 2·5–4 mm. in diam., inside below the pilose zone glabrous; lobes yellow, brownish-violet at the apex, 1·2–1·8 times as long as the tube, 1·8–2 times as long as wide, 7·5–11 x 4–6 mm., minutely pubescent outside, papillose inside. The set of appendages composed of 7 (the 1st and the 7th small, the 2nd and 3rd broom-like, the 4th, the central, much shorter, truncate and bearing three narrowly oblong lobes on the edges and in between the edges, the 5th and 6th again broom-like; the small ones oblong, 0·5–1·5 x 0·5 mm., ciliate, glabrous; the broom-like appendages long, filiform, 7–9 mm. long, glabrous, branched from 5–6 mm. above the base into 1–3 branches; the central one oblong, 2–3 x 0·3 mm., branched from 1·3-1·8 mm. above the base into 3 branches, sparsely pubescent). Stamens inserted 1·5–1·6 mm. below the mouth of the corolla; filaments 2·2–3 x 0·2 mm.; anthers 2·5–3·2 x 1 mm. Pistil 8–9 mm. long; ovary 1–1·5 x 0·6–0·8 x 0·5–1 mm., glabrous; style 6–8 x 0·2–0·3 mm., glabrous; clavun-cula 0·8–1 x 0·9–1 mm.; stigma 0·2–0·3 mm. long. Ovules 120–150 in each carpel. Fruit dark green; follicles 20–30 cm. long, 5–-7 mm. in diam. Seeds 10–18 x 1 x 0·2 mm., greenish, with a dense, 35 mm. long tuft of hairs at the apex.
Habitat
Lowland dry evergreen forest, deciduous coastal forest on sand and deciduous coastal thicket on sand.
Altitude range
Alt. 200–400 m.
400
200
Distribution
Mozambique Z 20 km. from Mopeia to Massingire, fr. 30.vii.1942, Torre 4463 (LISC).Mozambique MS 25 km. from Lacerdonia, N, of new railway 200 m., fl. 6.xii.1971, Müller & Pope 1924 (C; K; LISC; SRGH; WAG).
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