Edit History
Strophanthus eminii Aschers. & Pax [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
Strophanthus eminii Aschers. & Pax [family APOCYNACEAE], in Engl., Bot. Jahrb. 15: 366, t. 10 & 11 (1892). —Stapf in F.T.A. 4, 1: 172 (1902). — White, F.F.N.R.: 351 (1962). — Verdcourt & Trump, Comm. Pois. Pl. E. Afr.: 37 (1969). — Beentje in Meded. Landb. Wag. 82–4: 69, fig. 16, map 14 (1982). Type from Tanzania.
Strophanthus wittei Staner [family APOCYNACEAE], in Ann. Soc. Sci. Brux. Sér. B, 52: 90 (1932). Type from Zaire.
Strophanthus eminii var. wittei Staner Staner & Michotte [family APOCYNACEAE], in Bull. Jard. Bot. État Brux. 13: 34 (1934). Type as above.
Information
Shrub or small tree, 1–7 m. high, sometimes climbing up to 10 m., deciduous, with the flowers appearing before or with the leaves; latex clear, white, or yellow. Trunk up to 6 cm. in diam.; branches sometimes fleshy, with adherent or loose bark, smooth or sulcate; branchlets densely puberulous. Leaves petiolate; petiole 1–10 mm. long, lamina light to dark green above, silvery-grey beneath, ovate, broadly ovate, or elliptic, 0·8–2·3 times as long as wide, 6–24 x 4–18 cm., cuneate, rounded, or rarely subcordate at the base, acute or acuminate at the apex (acumen up to 10 mm. long), papyraceous or chartaceous, densely pubescent or glabrescent above, tomentose beneath, with 5–12 pairs of secondary veins; tertiary venation sometimes conspicuous. Inflorescence on long or short leafless branches, axillary or apparently so, only rarely in the forks, 1–12-flowered, sessile or pedunculate, congested, densely pubescent in all parts; pedicels 1–8 mm. long; bracts sepal-like. Flowers fragrant. Sepals subequal, ovate or narrowly ovate, (8)11–25 x 2·5–13 mm., acute; eglandulose or rarely with 10 colleters per calyx. Corolla-tube 17–26 mm. long, widening at slightly more than 1/2-4/5 of its length into a cyathiform upper part, at the mouth 8–17(21) mm. wide, densely pubescent outside, glabrous or minutely puberulous inside; corona-lobes subulate, 2·5–6·5 x 1·2–2·5 mm., minutely papillose; corolla lobes ovate, 7–15 x 4-5-10 mm., gradually narrowing into the pendulous tails; lobes (including the tails) 94–180 mm. long, pubescent outside except for the apex, glabrous inside. Stamens from 2·8 mm. exserted to 1 mm. included; filaments straight, with an abaxial swelling, 3·5–6·2 mm. long; anthers 5–7 x 1·3–2 mm., glabrous; acumen 0·1–0·4 mm. long. Ovary 1·2–2·3 x 1–2·5 mm., densely hispid with erect hairs up to 3·5 mm. long; style 11–18 mm. long; clavuncula 1·6–3 x 1·4–2·7 mm., stigma minute. Follicles divergent at an angle of 180°, tapering into an obtuse apex or ending in a knob, (15)20–38 cm. long and 1·5–3·2 cm. in diam.; exocarp pale brown, fairly thick and hard, shaggy with 4—18 mm. long villous protuberances, 0·5–1 mm. in diam. Seeds with the grain 11–24 X 2·5–5 mm., densely pubescent; rostrum glabrous for 18–60 mm. and bearing a coma for 30-50 mm.; coma 60–110 m. long.
Habitat
In leguminous woodland or Acacia-Commiphora bush, especially in rocky places.
Distribution
Zambia N Kalambo Falls, 20.vi.1960, Leach & Brunton 10086 (K; MO; SRGH).
Distribution (external)
Zaire
Tanzania
Notes
Flowering at the end of the dry and the beginning of the rainy season; mature fruits in the dry season.
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
Strophanthus eminii Aschers. & Pax [family APOCYNACEAE], in Engl., Bot. Jahrb. 15: 366, t. 10 & 11 (1892). —Stapf in F.T.A. 4, 1: 172 (1902). — White, F.F.N.R.: 351 (1962). — Verdcourt & Trump, Comm. Pois. Pl. E. Afr.: 37 (1969). — Beentje in Meded. Landb. Wag. 82–4: 69, fig. 16, map 14 (1982). Type from Tanzania.
Strophanthus wittei Staner [family APOCYNACEAE], in Ann. Soc. Sci. Brux. Sér. B, 52: 90 (1932). Type from Zaire.
Strophanthus eminii var. wittei Staner Staner & Michotte [family APOCYNACEAE], in Bull. Jard. Bot. État Brux. 13: 34 (1934). Type as above.
Information
Shrub or small tree, 1–7 m. high, sometimes climbing up to 10 m., deciduous, with the flowers appearing before or with the leaves; latex clear, white, or yellow. Trunk up to 6 cm. in diam.; branches sometimes fleshy, with adherent or loose bark, smooth or sulcate; branchlets densely puberulous. Leaves petiolate; petiole 1–10 mm. long, lamina light to dark green above, silvery-grey beneath, ovate, broadly ovate, or elliptic, 0·8–2·3 times as long as wide, 6–24 x 4–18 cm., cuneate, rounded, or rarely subcordate at the base, acute or acuminate at the apex (acumen up to 10 mm. long), papyraceous or chartaceous, densely pubescent or glabrescent above, tomentose beneath, with 5–12 pairs of secondary veins; tertiary venation sometimes conspicuous. Inflorescence on long or short leafless branches, axillary or apparently so, only rarely in the forks, 1–12-flowered, sessile or pedunculate, congested, densely pubescent in all parts; pedicels 1–8 mm. long; bracts sepal-like. Flowers fragrant. Sepals subequal, ovate or narrowly ovate, (8)11–25 x 2·5–13 mm., acute; eglandulose or rarely with 10 colleters per calyx. Corolla-tube 17–26 mm. long, widening at slightly more than 1/2-4/5 of its length into a cyathiform upper part, at the mouth 8–17(21) mm. wide, densely pubescent outside, glabrous or minutely puberulous inside; corona-lobes subulate, 2·5–6·5 x 1·2–2·5 mm., minutely papillose; corolla lobes ovate, 7–15 x 4-5-10 mm., gradually narrowing into the pendulous tails; lobes (including the tails) 94–180 mm. long, pubescent outside except for the apex, glabrous inside. Stamens from 2·8 mm. exserted to 1 mm. included; filaments straight, with an abaxial swelling, 3·5–6·2 mm. long; anthers 5–7 x 1·3–2 mm., glabrous; acumen 0·1–0·4 mm. long. Ovary 1·2–2·3 x 1–2·5 mm., densely hispid with erect hairs up to 3·5 mm. long; style 11–18 mm. long; clavuncula 1·6–3 x 1·4–2·7 mm., stigma minute. Follicles divergent at an angle of 180°, tapering into an obtuse apex or ending in a knob, (15)20–38 cm. long and 1·5–3·2 cm. in diam.; exocarp pale brown, fairly thick and hard, shaggy with 4—18 mm. long villous protuberances, 0·5–1 mm. in diam. Seeds with the grain 11–24 X 2·5–5 mm., densely pubescent; rostrum glabrous for 18–60 mm. and bearing a coma for 30-50 mm.; coma 60–110 m. long.
Habitat
In leguminous woodland or Acacia-Commiphora bush, especially in rocky places.
Distribution
Zambia N Kalambo Falls, 20.vi.1960, Leach & Brunton 10086 (K; MO; SRGH).
Distribution (external)
Zaire
Tanzania
Notes
Flowering at the end of the dry and the beginning of the rainy season; mature fruits in the dry season.
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