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Aristida diffusa subsp. burkei Stapf Melderis [family GRAMINEAE]

Date Updated: 26 July 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 10, Part 1, (1971) Author: E. Launert
Names
Aristida burkei Stapf [family GRAMINEAE], in Harv. & Sond., F.C. 7: 557 (1899). — Henrard, Crit. Rev. Aristida 1 in Meded. Rijks-Herb. 54: 64 (1926); Monogr. Aristida 2 in Meded. Rijks-Herb. 58a: 184, t. 81 (1932). Type as above. Aristida diffusa subsp. burkei Stapf Melderis [family GRAMINEAE], in Bol. Soc. Brot., Sér, 2, 44 : 287 (1970). Type from S. Africa (Orange Free State). Aristida diffusa var. burkei Stapf Schweickerdt [family GRAMINEAE], in Notizbl. Bot. Gart. Berl. 14: 195 (1938); in Bothalia, 4: 167 (1941). — Chippindall in Meredith, Grasses & Pastures of S. Afr.: 316, pl. 8, map 45 (1955). — de Winter in Bothalia, 8: 277, fig. 55, 56 (1965). Type as above.
Information
Culms usually 3- to 5-noded. Panicle up to 30 cm. long, lax and open. Spikelets yellowish or yellow-brown. Inferior glume c. 6 mm. long, with obtusely emarginate apex; the superior usually c. 12 mm. long, with a subacute slightly 2-fid apex. Lemma usually less than 11 mm. long (excluding the callus). 2n = 22.
Habitat
On serpentine and rubbly soils in hilly grasslands
Distribution
Zimbabwe N Lomagundi, Umvukwes Range, 1460 m., 25.ii.1959, Phipps, Drummond & Jackson 1522 (BM; COI; SRGH).
Distribution (external)
Cape Province Lesotho Orange Free State Natal Transvaal
Notes
Subsp. burkei is widespread in S. Africa extending also into Rhodesia, whilst subsp. diffusa is confined to the southern Cape Prov. In some areas common to both subspp. intermediates between them are met with. Subsp. diffusa diners from subsp. burkei in having 1-2-noded culms and a shorter (up to 15 cm. long), often somewhat contracted panicle. Its spikelets are purple, purplish-brown or brown; the inferior glume is 4-9 mm. long, obtuse; the superior 13-17 mm. long, with an obtuse 2-dentate apex; the lemma usually c. 11-13 mm. long (excluding the callus).

Date Updated: 26 July 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 10, Part 1, (1971) Author: E. Launert
Names
Aristida burkei Stapf [family GRAMINEAE], in Harv. & Sond., F.C. 7: 557 (1899). — Henrard, Crit. Rev. Aristida 1 in Meded. Rijks-Herb. 54: 64 (1926); Monogr. Aristida 2 in Meded. Rijks-Herb. 58a: 184, t. 81 (1932). Type as above. Aristida diffusa subsp. burkei Stapf Melderis [family GRAMINEAE], in Bol. Soc. Brot., Sér, 2, 44 : 287 (1970). Type from S. Africa (Orange Free State). Aristida diffusa var. burkei Stapf Schweickerdt [family GRAMINEAE], in Notizbl. Bot. Gart. Berl. 14: 195 (1938); in Bothalia, 4: 167 (1941). — Chippindall in Meredith, Grasses & Pastures of S. Afr.: 316, pl. 8, map 45 (1955). — de Winter in Bothalia, 8: 277, fig. 55, 56 (1965). Type as above.
Information
Culms usually 3- to 5-noded. Panicle up to 30 cm. long, lax and open. Spikelets yellowish or yellow-brown. Inferior glume c. 6 mm. long, with obtusely emarginate apex; the superior usually c. 12 mm. long, with a subacute slightly 2-fid apex. Lemma usually less than 11 mm. long (excluding the callus). 2n = 22.
Habitat
On serpentine and rubbly soils in hilly grasslands
Distribution
Zimbabwe N Lomagundi, Umvukwes Range, 1460 m., 25.ii.1959, Phipps, Drummond & Jackson 1522 (BM; COI; SRGH).
Distribution (external)
Cape Province Lesotho Orange Free State Natal Transvaal
Notes
Subsp. burkei is widespread in S. Africa extending also into Rhodesia, whilst subsp. diffusa is confined to the southern Cape Prov. In some areas common to both subspp. intermediates between them are met with. Subsp. diffusa diners from subsp. burkei in having 1-2-noded culms and a shorter (up to 15 cm. long), often somewhat contracted panicle. Its spikelets are purple, purplish-brown or brown; the inferior glume is 4-9 mm. long, obtuse; the superior 13-17 mm. long, with an obtuse 2-dentate apex; the lemma usually c. 11-13 mm. long (excluding the callus).

Date Updated: 26 July 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 10, Part 1, (1971) Author: E. Launert
Names
Aristida burkei Stapf [family GRAMINEAE], in Harv. & Sond., F.C. 7: 557 (1899). — Henrard, Crit. Rev. Aristida 1 in Meded. Rijks-Herb. 54: 64 (1926); Monogr. Aristida 2 in Meded. Rijks-Herb. 58a: 184, t. 81 (1932). Type as above. Aristida diffusa subsp. burkei Stapf Melderis [family GRAMINEAE], in Bol. Soc. Brot., Sér, 2, 44 : 287 (1970). Type from S. Africa (Orange Free State). Aristida diffusa var. burkei Stapf Schweickerdt [family GRAMINEAE], in Notizbl. Bot. Gart. Berl. 14: 195 (1938); in Bothalia, 4: 167 (1941). — Chippindall in Meredith, Grasses & Pastures of S. Afr.: 316, pl. 8, map 45 (1955). — de Winter in Bothalia, 8: 277, fig. 55, 56 (1965). Type as above.
Information
Culms usually 3- to 5-noded. Panicle up to 30 cm. long, lax and open. Spikelets yellowish or yellow-brown. Inferior glume c. 6 mm. long, with obtusely emarginate apex; the superior usually c. 12 mm. long, with a subacute slightly 2-fid apex. Lemma usually less than 11 mm. long (excluding the callus). 2n = 22.
Habitat
On serpentine and rubbly soils in hilly grasslands
Distribution
Zimbabwe N Lomagundi, Umvukwes Range, 1460 m., 25.ii.1959, Phipps, Drummond & Jackson 1522 (BM; COI; SRGH).
Distribution (external)
Cape Province Lesotho Orange Free State Natal Transvaal
Notes
Subsp. burkei is widespread in S. Africa extending also into Rhodesia, whilst subsp. diffusa is confined to the southern Cape Prov. In some areas common to both subspp. intermediates between them are met with. Subsp. diffusa diners from subsp. burkei in having 1-2-noded culms and a shorter (up to 15 cm. long), often somewhat contracted panicle. Its spikelets are purple, purplish-brown or brown; the inferior glume is 4-9 mm. long, obtuse; the superior 13-17 mm. long, with an obtuse 2-dentate apex; the lemma usually c. 11-13 mm. long (excluding the callus).
Aristida diffusa subsp. burkei Stapf Melderis [family GRAMINEAE]
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