Compilation
Gymnothrix ramosa

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Name

Identification
Pennisetum ovale Rupr. ex Steud. [family POACEAE ] Verified by Not on Sheet, Isotype of Pennisetum ramosum Sm. [family POACEAE ] (stored under name); Verified by Bräuchler, C., 2013 Isotype of Gymnothrix ramosa Hochst. [family POACEAE ] Verified by Bräuchler, C., 2013
Related name
  • Gymnothrix ramosa
  • Pennisetum ramosum
  • Pennisetum ovale

Flora

Entry for PENNISETUM ramosum (Hochst.) Schweinf. [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, page 451, (1982) Author: W. D. CLAYTON and S.A. RENVOIZE
Names
PENNISETUM ramosum (Hochst.) Schweinf. [family POACEAE], Beitr. Fl. Aeth.: 301 (1867); F.T.A. 9: 976 (1934); Ann. list grasses Ug.: 37 (1947); F.P.S. 3: 512 (1956); R.K.G.: 53 (1958); I.G.U.: 47 (1960); G.T.: 89 (1965); Clayton in F.W.T.A., ed. 2, 3: 460 (1972). Type: Sudan, Sennar, Kotschy 199 (K, iso.!)
Gymnothrix ramosa Hochst. [family ], in Flora 27: 252 (1844)
Pennisetum ovale Steud. [family POACEAE], Syn. Pl. Glum. 1: 104 (1854), nom. superfl. Based on Gymnothrix ramosa
Pennisetum arvense Pilg. [family POACEAE], in E.J. 30: 119 (1901). Types: Ethiopia, Hamedo, Schimper 1058 & Dembea, Schimper 1399 (both K, isosyn.!)
Information
Tough caespitose annual; culms 50–200 cm. high, erect. Leaf-blades flat or folded, 6–30 cm. long, 4–18 mm. wide, with a blunt tip; sheaths keeled. Panicle linear to narrowly oblong, 2–7 cm. long, compact, bristly, the culm scabrid below the panicle; rhachis with sharp decurrent wings below the closely spaced cupular scars, scaberulous; involucre enclosing 1 sessile spikelet, truncate at the base, the single whorl of bristles briefly connate there; bristles glabrous, the longest 10–30 mm. Spikelets narrowly ovate to ovate, 5–6.5 mm. long; lower glume small, up to 1 mm.; upper glume 4/5 to as long as the spikelet, the lower lemma similar, ♂ or barren; upper lemma coriaceous, acuminate to acuminate-aristate.
Range
DISTR. U1, 3; T1, 4–8
Altitude range
500–1500 m.
Distribution
TANZANIA Singida District Mgori, 1 May 1962, Polhill & Paulo 2272!TANZANIA Kilosa District Mikumi National Park, Apr. 1967, Procter 3618! & Park Headquarters, Greenway & Kanuri 15110!UGANDA Karamoja District about 25.5 km. W. of Moroto, Omanimani [Manimani] R., 27 Aug. 1954, Clayton 80!UGANDA Teso District Adachal, 25 Oct. 1939, A.S. Thomas 3058! & Kapiri, 26 Aug. 1957, Langdale-Brown 2327!
Distribution (external)
Nigeria
Cameroun
Sudan
Ethiopia
Notes
The slightly connate bristles are characteristic of the species, and underline the difficulty of making a sharp distinction between Cenchrus and Pennisetum.

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