Edit History
Schrebera alata [family OLEACEAE]
Date Updated: 19 August 2007
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Schrebera alata [family OLEACEAE]
Common names
Nathusia alata Hochst. in Flora 24, 1: 25 and 2: 672 (1841). Schrebera saundersiaeHarv.,7hes. Cap. 2: 40, t. 163 (1859). Wright in F.C. 4,1 : 483(1907). Type: Durban, Gerrard 1153 (PRE, iso.!). S. latialata Gilg in Bot. Jahrb. 30: 73 (1901). Type: Durban, Medley Wood 5201 (PRE, iso.!).
Information
Tree (said to occur occasionally as a subscandent shrub in Natal) from about 4 to 8 m tall with stem up to 30 cm in diameter, bark greyish or light brown in colour; branchlets glabrous or puberulous, not tomentulose. Leaves glabrous, 5-13 cm long, 5-foliolate, sometimes 3-foliolate; leaflets varying considerably in size, texture and shape, the lateral elliptic to broadly elliptic or oblong, unequally cuneate at the base, about 3-7 cm long and 1-4 cm broad, the terminal usually a little larger than the other leaflets, more obovate-oblong, sometimes elliptic, subsessile or cuneate into a petiolule up to 1 cm long; petiole and rhachis winged, wing variable, narrow or broad auricled at base or not. Inflorescence puberulous, about 6-11 cm long, the lateral branches slender, usually over 2 cm long; bracts deciduous, variable in size, some 5 mm long and 2 mm broad, often narrower, rarely broader. Calyx more or less tubular-turbinate, persistently puberulous outside, sometimes densely so, almost velvety, pubescent in upper portion within, more or less truncate and slit or variously lobed, persisting in fruit. Corolla sweetly scented, white suffused with pink or puce at different stages, tube cylindrical, about 1 • 4 cm long, glabrous or variously puberulous in parts outside, often pubescent with rather long hairs near the base within; lobes suborbicular, about 5 mm long, crenate on margins, spreading, with a cluster of glandular reddish-brown hairs near the base on inner face. Stamens 2, inserted near the apex of the corolla and then exserted or, in other specimens, below the apex and then included. Ovary 2-celled, about 1 • 5 mm long, somewhat flattened and puberulous on top, obscurely 2-lobed, ovules 4 in each cell; pendulous; style about 1 ? 5 cm long, glabrous or sometimes sparsely pubescent with sho patent gland-tipped hairs, long exserted in flowers with stamens included and vice versa; stigma about 1-5 mm long, obscurely 2-lobed. Capsule green when young (turning black on drying) becoming light brown at maturity, puberulous except at base within calyx, obovate-oblong, slightly laterally flattened at right angles to the septum, parallel to the wall of division, with a ridge along the septum. Seeds 8 mm long with an oblong 1 • 1 cm X 6 mm subterminal wing (degree to which wing runs down one side varies, also the width).
Habitat
Turrill in the Flora of Tropical East Africa (1952) takes a broad view of this species and considers the following to be synonymous: 5. obliquijoliolata Gilg, S. merkeri Lingelsh. and S. nyassae Lingelsh. In South Africa the same view is held, for it has been found that considerable variation in the size, shape and texture of the leaves as well as the extent to which the rhachis is winged may occur on the same tree at different stages of growth or in different seasons. S. alata is very close to the following species and is mainly distinguished by its glabrous or glabrescent new growth as opposed to thetomentulose branchlets of S. argyrotricha. In a few cases in the late season it may be difficult to distinguish between these but the habitat will be of some assistance since S. argyrotricha is found in the dry bushveld while S. alata grows in the comparatively moist forest areas and coastal belt.
Use
1. Schrebera alata (Hochst.) Welw. in Trans. Linn. Soc. Bot. 27: 41 (1869); Turrill in F.T.E.A. Oleaceae: 4 (1952); Verdoorn in Bothalia 6: 550 and Fig. 1, 552 (1956). Type: Abyssinia, Schimper 245 (K, iso.).
Range
Found in the marginal flora of forests in the northern and eastern Transvaal and Natal and also in the coastal bush of Natal. Recorded from Ethiopia and southwards through tropical Africa to the Transvaal and Natal.
Date Updated: 19 August 2007
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Schrebera alata [family OLEACEAE]
Common names
Nathusia alata Hochst. in Flora 24, 1: 25 and 2: 672 (1841). Schrebera saundersiaeHarv.,7hes. Cap. 2: 40, t. 163 (1859). Wright in F.C. 4,1 : 483(1907). Type: Durban, Gerrard 1153 (PRE, iso.!). S. latialata Gilg in Bot. Jahrb. 30: 73 (1901). Type: Durban, Medley Wood 5201 (PRE, iso.!).
Information
Tree (said to occur occasionally as a subscandent shrub in Natal) from about 4 to 8 m tall with stem up to 30 cm in diameter, bark greyish or light brown in colour; branchlets glabrous or puberulous, not tomentulose. Leaves glabrous, 5-13 cm long, 5-foliolate, sometimes 3-foliolate; leaflets varying considerably in size, texture and shape, the lateral elliptic to broadly elliptic or oblong, unequally cuneate at the base, about 3-7 cm long and 1-4 cm broad, the terminal usually a little larger than the other leaflets, more obovate-oblong, sometimes elliptic, subsessile or cuneate into a petiolule up to 1 cm long; petiole and rhachis winged, wing variable, narrow or broad auricled at base or not. Inflorescence puberulous, about 6-11 cm long, the lateral branches slender, usually over 2 cm long; bracts deciduous, variable in size, some 5 mm long and 2 mm broad, often narrower, rarely broader. Calyx more or less tubular-turbinate, persistently puberulous outside, sometimes densely so, almost velvety, pubescent in upper portion within, more or less truncate and slit or variously lobed, persisting in fruit. Corolla sweetly scented, white suffused with pink or puce at different stages, tube cylindrical, about 1 • 4 cm long, glabrous or variously puberulous in parts outside, often pubescent with rather long hairs near the base within; lobes suborbicular, about 5 mm long, crenate on margins, spreading, with a cluster of glandular reddish-brown hairs near the base on inner face. Stamens 2, inserted near the apex of the corolla and then exserted or, in other specimens, below the apex and then included. Ovary 2-celled, about 1 • 5 mm long, somewhat flattened and puberulous on top, obscurely 2-lobed, ovules 4 in each cell; pendulous; style about 1 ? 5 cm long, glabrous or sometimes sparsely pubescent with sho patent gland-tipped hairs, long exserted in flowers with stamens included and vice versa; stigma about 1-5 mm long, obscurely 2-lobed. Capsule green when young (turning black on drying) becoming light brown at maturity, puberulous except at base within calyx, obovate-oblong, slightly laterally flattened at right angles to the septum, parallel to the wall of division, with a ridge along the septum. Seeds 8 mm long with an oblong 1 • 1 cm X 6 mm subterminal wing (degree to which wing runs down one side varies, also the width).
Habitat
Turrill in the Flora of Tropical East Africa (1952) takes a broad view of this species and considers the following to be synonymous: 5. obliquijoliolata Gilg, S. merkeri Lingelsh. and S. nyassae Lingelsh. In South Africa the same view is held, for it has been found that considerable variation in the size, shape and texture of the leaves as well as the extent to which the rhachis is winged may occur on the same tree at different stages of growth or in different seasons. S. alata is very close to the following species and is mainly distinguished by its glabrous or glabrescent new growth as opposed to thetomentulose branchlets of S. argyrotricha. In a few cases in the late season it may be difficult to distinguish between these but the habitat will be of some assistance since S. argyrotricha is found in the dry bushveld while S. alata grows in the comparatively moist forest areas and coastal belt.
Use
1. Schrebera alata (Hochst.) Welw. in Trans. Linn. Soc. Bot. 27: 41 (1869); Turrill in F.T.E.A. Oleaceae: 4 (1952); Verdoorn in Bothalia 6: 550 and Fig. 1, 552 (1956). Type: Abyssinia, Schimper 245 (K, iso.).
Range
Found in the marginal flora of forests in the northern and eastern Transvaal and Natal and also in the coastal bush of Natal. Recorded from Ethiopia and southwards through tropical Africa to the Transvaal and Natal.
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