Edit History
Acacia rehmanniana Schinz [family LEGUMINOSAE]
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 3, Part 1, (1970) Author: J.P.M. Brenan
Names
Acacia rehmanniana Schinz [family LEGUMINOSAE], in Bull. Herb. Boiss. 6: 525 (1898). — Eyles in Trans. Roy. Soc. S. Afr. 5: 362 (1916). — Bak. f., Legum. Trop. Afr. 3: 838 (1930). — Burtt Davy, F.P.F.T. 2: 343 (1932). — Steedman, Trees etc. S. Rhod.: 14, t. 9 (1933). — O. B. Mill., B.C.L.; 20 (1948); in Journ. S. Afr. Bot. 18: 24 (1952). — Wild, S. Rhod. Bot. Dict.: 48 (1953). — Pardy in Rhod. Agric. Journ. 51: 376 cum phot. (1954). — Burtt Davy & Hoyle, rev. Topham, N.C.L. ed. 2: 64 (1958). — F. White, F.F.N.R.; 86, fig. 18 I (1962). — Boughey in Journ. S. Afr. Bot. 30: 158 (1964). Type from the Transvaal.
Information
Usually a small to medium, flat-crowned tree 3-8(12) m. high; young branchlets densely spreading-hairy, the hairs at first golden then grey; the epidermis later falling off to expose powdery rusty-red bark. Stipules spinescent, up to 5 cm. long, never inflated; other prickles absent. Leaves with petiole 2-4 mm. long which, like the rhachis, is densely clothed with at first golden then grey spreading hairs; pinnae of well-developed leaves of mature shoots 15-44 pairs (reduced leaves with fewer pairs sometimes also present), mostly 1-2.5 cm. long; leaflets numerous, (1)1.5-2.8 x 0.4-0.7 mm. Flowers white to cream, in heads; heads c. 2-20 per axil, aggregated into a sort of terminal “raceme”, subtended by young to scarcely developed leaves; involucel below the middle of the almost or quite eglandular 1-2 cm. long peduncle, rarely basal. Corolla ± densely pubescent on the lobes outside, about 11/2 times as long as the calyx. Pods dehiscent, 7.5-14 x 1.2-2.3 cm., straight, glabrous or very slightly pubescent, flattened, not constricted between the seeds, grey-brown to olive, slightly ± longitudinally venose and often somewhat irregularly wrinkled. Seeds brown, 5-9 x 5-6.5 mm., smooth, ellipsoid to suborbicular, somewhat compressed; areole 3.5-5 x 2-2.8 mm.
Habitat
Wooded grassland (Acacia-Combretum, Acacia-Colophospermum mopane); often near rivers or streams, sometimes on termite mounds
Altitude range
910–1520 m.
1520
910
Distribution
Zimbabwe S 16 km. S. of Chibi, fr. iv.1953, Vincent 216 (SRGH).Zimbabwe C Salisbury, Strathavon, fl. xi.1955, Drummond 4939 (K; LM; SRGH).Zimbabwe E Umtali,fl. 26.xii.1955, Chase 5923 (BM; K; SRGH).Zimbabwe W Bulawayo, fr. 6.ix.1947, Wild 1991 (K; SRGH).Zimbabwe N Msengezi, fl. i.1949, Davies 351 (K; SRGH).Zambia S Choma Valley, Chibia Stream, fl. 9.vi.1933, Michelmore 401 (K).Botswana N 21 km. from Tsessebe to Pan, fl. ii.xii.1929, Pole Evans 2578 (K; PRE).
Distribution (external)
Transvaal
Natal
Notes
Owing to confusion with A. sieberana DC., this species has been often misunderstood. The records in Bak. f., Legum. Trop. Afr. 3: 838 (1930) from the Sudan and West Africa are due to this cause. In reality A. rehmanniana is a very distinctive species, easily separated from A. sieberana by the more numerous pinnae, the much thinner texture of the pods and the way in which the capitula are clustered in the axils and aggregated into terminal “racemes”. The latter character will separate A. rehmanniana from A. abyssinica, which is even more closely related than is A. sieberana.
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 3, Part 1, (1970) Author: J.P.M. Brenan
Names
Acacia rehmanniana Schinz [family LEGUMINOSAE], in Bull. Herb. Boiss. 6: 525 (1898). — Eyles in Trans. Roy. Soc. S. Afr. 5: 362 (1916). — Bak. f., Legum. Trop. Afr. 3: 838 (1930). — Burtt Davy, F.P.F.T. 2: 343 (1932). — Steedman, Trees etc. S. Rhod.: 14, t. 9 (1933). — O. B. Mill., B.C.L.; 20 (1948); in Journ. S. Afr. Bot. 18: 24 (1952). — Wild, S. Rhod. Bot. Dict.: 48 (1953). — Pardy in Rhod. Agric. Journ. 51: 376 cum phot. (1954). — Burtt Davy & Hoyle, rev. Topham, N.C.L. ed. 2: 64 (1958). — F. White, F.F.N.R.; 86, fig. 18 I (1962). — Boughey in Journ. S. Afr. Bot. 30: 158 (1964). Type from the Transvaal.
Information
Usually a small to medium, flat-crowned tree 3-8(12) m. high; young branchlets densely spreading-hairy, the hairs at first golden then grey; the epidermis later falling off to expose powdery rusty-red bark. Stipules spinescent, up to 5 cm. long, never inflated; other prickles absent. Leaves with petiole 2-4 mm. long which, like the rhachis, is densely clothed with at first golden then grey spreading hairs; pinnae of well-developed leaves of mature shoots 15-44 pairs (reduced leaves with fewer pairs sometimes also present), mostly 1-2.5 cm. long; leaflets numerous, (1)1.5-2.8 x 0.4-0.7 mm. Flowers white to cream, in heads; heads c. 2-20 per axil, aggregated into a sort of terminal “raceme”, subtended by young to scarcely developed leaves; involucel below the middle of the almost or quite eglandular 1-2 cm. long peduncle, rarely basal. Corolla ± densely pubescent on the lobes outside, about 11/2 times as long as the calyx. Pods dehiscent, 7.5-14 x 1.2-2.3 cm., straight, glabrous or very slightly pubescent, flattened, not constricted between the seeds, grey-brown to olive, slightly ± longitudinally venose and often somewhat irregularly wrinkled. Seeds brown, 5-9 x 5-6.5 mm., smooth, ellipsoid to suborbicular, somewhat compressed; areole 3.5-5 x 2-2.8 mm.
Habitat
Wooded grassland (Acacia-Combretum, Acacia-Colophospermum mopane); often near rivers or streams, sometimes on termite mounds
Altitude range
910–1520 m.
1520
910
Distribution
Zimbabwe S 16 km. S. of Chibi, fr. iv.1953, Vincent 216 (SRGH).Zimbabwe C Salisbury, Strathavon, fl. xi.1955, Drummond 4939 (K; LM; SRGH).Zimbabwe E Umtali,fl. 26.xii.1955, Chase 5923 (BM; K; SRGH).Zimbabwe W Bulawayo, fr. 6.ix.1947, Wild 1991 (K; SRGH).Zimbabwe N Msengezi, fl. i.1949, Davies 351 (K; SRGH).Zambia S Choma Valley, Chibia Stream, fl. 9.vi.1933, Michelmore 401 (K).Botswana N 21 km. from Tsessebe to Pan, fl. ii.xii.1929, Pole Evans 2578 (K; PRE).
Distribution (external)
Transvaal
Natal
Notes
Owing to confusion with A. sieberana DC., this species has been often misunderstood. The records in Bak. f., Legum. Trop. Afr. 3: 838 (1930) from the Sudan and West Africa are due to this cause. In reality A. rehmanniana is a very distinctive species, easily separated from A. sieberana by the more numerous pinnae, the much thinner texture of the pods and the way in which the capitula are clustered in the axils and aggregated into terminal “racemes”. The latter character will separate A. rehmanniana from A. abyssinica, which is even more closely related than is A. sieberana.
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 3, Part 1, (1970) Author: J.P.M. Brenan
Names
Acacia rehmanniana Schinz [family LEGUMINOSAE], in Bull. Herb. Boiss. 6: 525 (1898). — Eyles in Trans. Roy. Soc. S. Afr. 5: 362 (1916). — Bak. f., Legum. Trop. Afr. 3: 838 (1930). — Burtt Davy, F.P.F.T. 2: 343 (1932). — Steedman, Trees etc. S. Rhod.: 14, t. 9 (1933). — O. B. Mill., B.C.L.; 20 (1948); in Journ. S. Afr. Bot. 18: 24 (1952). — Wild, S. Rhod. Bot. Dict.: 48 (1953). — Pardy in Rhod. Agric. Journ. 51: 376 cum phot. (1954). — Burtt Davy & Hoyle, rev. Topham, N.C.L. ed. 2: 64 (1958). — F. White, F.F.N.R.; 86, fig. 18 I (1962). — Boughey in Journ. S. Afr. Bot. 30: 158 (1964). Type from the Transvaal.
Information
Usually a small to medium, flat-crowned tree 3-8(12) m. high; young branchlets densely spreading-hairy, the hairs at first golden then grey; the epidermis later falling off to expose powdery rusty-red bark. Stipules spinescent, up to 5 cm. long, never inflated; other prickles absent. Leaves with petiole 2-4 mm. long which, like the rhachis, is densely clothed with at first golden then grey spreading hairs; pinnae of well-developed leaves of mature shoots 15-44 pairs (reduced leaves with fewer pairs sometimes also present), mostly 1-2.5 cm. long; leaflets numerous, (1)1.5-2.8 x 0.4-0.7 mm. Flowers white to cream, in heads; heads c. 2-20 per axil, aggregated into a sort of terminal “raceme”, subtended by young to scarcely developed leaves; involucel below the middle of the almost or quite eglandular 1-2 cm. long peduncle, rarely basal. Corolla ± densely pubescent on the lobes outside, about 11/2 times as long as the calyx. Pods dehiscent, 7.5-14 x 1.2-2.3 cm., straight, glabrous or very slightly pubescent, flattened, not constricted between the seeds, grey-brown to olive, slightly ± longitudinally venose and often somewhat irregularly wrinkled. Seeds brown, 5-9 x 5-6.5 mm., smooth, ellipsoid to suborbicular, somewhat compressed; areole 3.5-5 x 2-2.8 mm.
Habitat
Wooded grassland (Acacia-Combretum, Acacia-Colophospermum mopane); often near rivers or streams, sometimes on termite mounds
Altitude range
910–1520 m.
1520
910
Distribution
Zimbabwe S 16 km. S. of Chibi, fr. iv.1953, Vincent 216 (SRGH).Zimbabwe C Salisbury, Strathavon, fl. xi.1955, Drummond 4939 (K; LM; SRGH).Zimbabwe E Umtali,fl. 26.xii.1955, Chase 5923 (BM; K; SRGH).Zimbabwe W Bulawayo, fr. 6.ix.1947, Wild 1991 (K; SRGH).Zimbabwe N Msengezi, fl. i.1949, Davies 351 (K; SRGH).Zambia S Choma Valley, Chibia Stream, fl. 9.vi.1933, Michelmore 401 (K).Botswana N 21 km. from Tsessebe to Pan, fl. ii.xii.1929, Pole Evans 2578 (K; PRE).
Distribution (external)
Transvaal
Natal
Notes
Owing to confusion with A. sieberana DC., this species has been often misunderstood. The records in Bak. f., Legum. Trop. Afr. 3: 838 (1930) from the Sudan and West Africa are due to this cause. In reality A. rehmanniana is a very distinctive species, easily separated from A. sieberana by the more numerous pinnae, the much thinner texture of the pods and the way in which the capitula are clustered in the axils and aggregated into terminal “racemes”. The latter character will separate A. rehmanniana from A. abyssinica, which is even more closely related than is A. sieberana.
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