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HYPERTHELIA dissoluta (Steud.) W.D. Clayton [family POACEAE]

Date Updated: 19 August 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 451, (1982) Author: W. D. CLAYTON and S.A. RENVOIZE
Names
HYPERTHELIA dissoluta (Steud.) W.D. Clayton [family POACEAE], in K.B. 20: 441 (1966) & in F.W.T.A., ed. 2, 3: 496 (1972). Type: tropical Africa [probably Ghana], in Herb. Lindley (CGE, holo.) Anthistiria dissoluta Steud. [family POACEAE], Syn. Pl. Glum. 1: 400 (1854) Andropogon ruprechtii Hack. [family POACEAE], in Flora 68: 126 (1885). Type: Mexico, Vera Cruz, Galeotti 5697 (K, iso.!) Hyparrhenia ruprechtii (Hack.) Fourn. [family POACEAE], Mex. Pl. Gram.: 67 (1886); F.T.A. 9: 326 (1919); Fl. Agrost. Congo Belge 1: 176 (1929); Imp. Grassl. Pl. Kenya: 80 (1951) Cymbopogon ruprechtii (Hack.) Rendle [family POACEAE], Cat. Afr. Pl. Welw. 2: 160 (1899) Hyparrhenia dissoluta (Steud.) C.E. Hubbard [family POACEAE], in F.W.T.A. 2: 591 (1936); Ann. list grasses Ug.: 23 (1947); F.P.N.A. 3: 62 (1955); F.P.S. 3: 469 (1956); R.K.G.: 59 (1958); Ann. list Nyasaland grasses: 44 (1958); I.G.U.: 35 (1960); G.T.: 107 (1965)
Information
Tufted perennial. Culms 1–3 m. high. Leaf-blades up to 30 cm. long, 6 mm. wide. False panicle erect, rather stiff, of 4–6 fastigiate tiers; spatheole narrowly lanceolate, 5–7 cm. long, glabrous or sometimes hirsute, yellowish green eventually becoming reddish, the peduncle 1/2–2/3 as long; racemes 2–3 cm. long, 2-awned per pair, not deflexed; upper raceme-base 2–3(–5) mm. long, the appendage linear to narrowly lanceolate and 4–11 mm. long. Sessile spikelet 10–14 mm. long (including callus); callus 3–6 mm. long; upper glume with or without a mucro up to 2 mm. long; upper lemma with a yellowish awn 5–10 cm. long. Pedicelled spikelet 9–14 mm. long, with or without a terminal bristle up to 6 mm. long. Fig. 183.
Range
DISTR. U1–4; K2–7; T1–8; Z tropical and South Africa; Madagascar; introduced to tropical America
Altitude range
0–2400 m.
Distribution
KENYA Fort Hall District Fort Hall-Embu, 28 Mar. 1948, Bogdan 1557!KENYA Kwale District Lango ya Mwagandi [Longomwagandi] area, 10 Feb. 1968, Magogo & Glover 63! & Buda Mafisini Forest 13 km. WSW. of Gazi, 16 Aug. 1953, Drummond & Hemsley 3820!TANZANIA Mbulu District Lake Manyara National Park, above Endabash, 14 June 1965, Greenway & Kanuri 11849!TANZANIA Iringa District Ruaha National Park, 19 May 1968, Renvoize & Abdallah 2271!TANZANIA Songea District 2.5 km. NE. of Kigonsera, 14 Apr. 1956, Milne-Redhead & Taylor 9647!TANZANIA Zanzibar I., Walezo, 4 Apr. 1930, Vaughan 1305!UGANDA Karamoja District Kidepo National Park, 26 Aug. 1966, Harrington 111! & Moroto, 19 Sept. 1956, Hardy & Bally 10796!UGANDA Mbale District Mt. Elgon, Buligenyi, 16 Aug. 1927, Snowden 1173!
HYPERTHELIA dissoluta (Steud.) W.D. Clayton [family POACEAE]
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