Compilation
Sporobolus angustus

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Name

Identification
Sporobolus angustus Mez ex Peter [family GRAMINEAE ] (stored under name); Verified by Not on sheet.,
Related name
  • Sporobolus indicus
  • Sporobolus angustus
  • Sporobolus nudicus

Flora

Entry for SPOROBOLUS mauritianus (Steud.) Th. Dur. & Schinz [family POACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, Part (Part 2), page 177, (1974) Author: W. D. CLAYTON, S. M. PHILLIPS AND S. A. RENVOIZE
Names
SPOROBOLUS mauritianus (Steud.) Th. Dur. & Schinz [family POACEAE], ,Consp. Fl. Afr. 5: 822 (1895); Clayton in F.W.T.A., ed. 2, 3: 407 (1972). Type: Mauritius, Urville (P, holo.)
SPOROBOLUS centrifugus Nees var. angustus [family POACEAE], Fl. Afr. Austr.: 159 (1841). Type: South Africa, Cape Province, between Gekau and Bashee rivers, Drège (B, iso.!)
Vilfa mauritiana Steud. [family POACEAE], Syn. Pl. Glum. 1: 157 (1854)
Sporobolus subulatus Hack. [family POACEAE], in J.L.S. 29: 65 (1891). Types: Madagascar, Betsileo, Scott Elliot 2260 & 3052 (both K, isosyn.!) & 2034 (? W, syn.)
Sporobolus lanuginosus De Wild. [family POACEAE], Notes Fl. Kat. 5: 18 (1920). Type: Zaire, Katanga, Homblé 749 (BR, holo.!)
Sporobolus ledermannii Mez [family POACEAE], in F.R. 17: 296 (1921). Type: Cameroun, Sambolabo-Dodo, Tchape Pass, Ledermann 2822 (B, holo.!, K, iso.!)
Sporobolus artus Stent [family POACEAE], in Bothalia 2: 260 (1927). Types: South Africa, Natal, Inanda, Rehmann 8254 & Wood 1578 & Claremont, Schlechter 3044 & Zululand, Buchanan, 300 (all K, isosyn. !) and several other syntypes
Sporobolus setifolius Peter [family POACEAE], F.D.O.-A. 1, Anh.: 85 (1930); G.T.: 45 (1965). Type: Tanzania, Kigoma District, Uvinza [Uvinsa], Lugufu to Kigambo, Peter 36702 (B, holo.!)
Sporobolus angustus (Nees) Peter [family POACEAE], F.D.O.-A. 1: 286 (1931), non Buckley (1862), nom. illegit.
Sporobolus hubbardii A. Chev. [family POACEAE], in Bull. Mus. Hist. Nat. Paris, sér. 2, 20: 469 (1948). Type: Guinée, Diededou to Niossomoridou, Chevalier 20855 (P, holo., K, iso.!)
Sporobolus deschampsioides Duvign. [family POACEAE], in B.S.B.B. 96: 128 (1963). Type: Zaire, Katanga, Kamwali, Duvigneaud 5125G (BRLU, holo.)
Information
Densely caespitose perennial; culms 20–80 cm. high; basal sheaths broad, up to 8 mm. wide, and papery, sometimes yellow and horny, rarely fibrous. Leaf-blades filiform or involute, 5–25 cm. long, 1–2.5 mm. wide, the culm leaves sometimes broader and up to 5 mm. wide. Panicle narrowly ovate to pyramidal, sometimes ± contracted, 4–16 cm. long; primary branches in 4–8 whorls, bare for the lower half of their length. Spikelets 2.5–3.8 mm. long, glabrous, purplish olive; lower glume lanceolate to ovate, 1.1–2.8 mm. long, 1/2–3/4 as long as the spikelet, acute to obtuse; upper glume lanceolate, as long as the spikelet, acute; lemma similar to the upper glume but a little shorter; anthers 3, 1.8–2.5 mm. long. Grain ellipsoid, 1.8–2 mm. long.
Range
DISTR. K6; T4, 7, 8 tropical and South Africa, Madagascar, Mauritius
Altitude range
1600–2000 m.
Distribution
KENYA Masai District Keekorok Lodge, 14 Dec. 1972, Mumiukha 69 !TANZANIA Ufipa District Muse, 29 Dec. 1958, Vesey-FitzGerald 2086!TANZANIA Rungwe District Kyimbila, 21 Nov. 1911, Stolz 992!TANZANIA Songea District Matengo Hills, Liwiri-Kiteza [Luwira-Kiteza] Forest Reserve, 20 Oct. 1956, Semsei 2576 !
Notes
Species 11 to 15 form a cluster of intergrading species. Sporobolus sanguineus and S. mildbraedii are distinguished by their elongated panicle and reddish spikelets. S. congoensis and S. centrifugus represent relatively homogeneous elements which it is reasonable to separate as distinct species. There remains a highly variable complex in which no clear subdivisions can be discerned, and which is here treated as a single species, S. mauritianus. .  Several tropical American species, notably S. cubensis Hitchc., also belong to this cluster, but seem not to be identical with any of the African species.

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