Compilation
Panicum tambacoundense

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Name

Identification
Panicum tambacoundense Berhaut [family POACEAE ] Verified by Not on sheet, Panicum gracilicaule Rendle [family POACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Panicum tambacoundense
  • Panicum gracilicaule

Flora

Entry for PANICUM gracilicaule Rendle [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
PANICUM gracilicaule Rendle [family POACEAE], Cat. Afr. Pl. Welw. 2: 179 (1899); Ann. list Nyasaland grasses: 50 (1958); G.T.: 60 (1965); Clayton in F.W.T.A., ed. 2,3: 432 (1972). Types: Angola, Pungo Andongo, Welwitsch 2857 & 2862c & Huila, Welwitsch 2687 (all K, isosyn.!)
PANICUM sublaetum Stapf [family POACEAE], in F.T.A. 9: 671 (1920). Types: Guinée, Pobéguin 1723 (K, syn.!) and several other syntypes
PANICUM verruciferum Mez [family POACEAE], in E.J. 57: 188 (1921). Type: Malawi, Buchanan 247 (B, holo.!)
PANICUM membranaceum Robyns [family POACEAE], in Mém. Inst. Roy. Col. Belge, Sec. Sci. Nat. & Méd. 1: 41 (1932) & Fl. Agrost. Congo Belge 2: 190 (1934). Type: Zaire, Lubumbashi [Elizabethville], Robyns 1815 (BR, holo.!)
PANICUM tambacoundense Berhaut [family POACEAE], in Mém. Soc. Bot. Fr. 1953–54: 11 (1954). Type: Senegal, Berhaut 1444 (P, holo.!)
Information
Annual; culms slender, 25–70 cm. high. Leaf-blades spreading to deflexed, narrowly lanceolate, (2–)4–10(–15) cm. long, (2–)4–10 mm. wide, narrowed to widened at the base, flat, membranous, pale, often yellowish green, glabrous or pilose, acute or acuminate. Panicle broadly ovate to oblong, (3–)5–12(–18) cm. long, moderately to much branched. Spikelets broadly ovate-elliptic, 1.8–2.2(–2.5) mm. long, glabrous, acute; lower glume 2/3 the length of the spikelet, 3-nerved, acute; upper glume 5-nerved, acute; lower lemma 5-nerved, ♂, its palea well developed; upper lemma and palea verruculose.
Range
DISTR. T4, 7, 8 southwards to Zimbabwe and Angola; also in W. Africa
Altitude range
380–1860 m.
Distribution
TANZANIA Iringa District Ruaha National Park, 18 May 1968, Renvoize & Abdallah 2229!TANZANIA Songea District between R. Luhira and R. Lumecha about 9 km. S. of Lumecha Bridge, 4 May 1956, Milne-Redhead & Taylor 9991!TANZANIA Lindi District Liwale road 11 km. N. of Nachingwea, 10 May 1962, Boaler 575!
Notes
Specimens from W. Africa are noticeably more robust and larger than those from E. Africa, where this species is confined strictly to Brachystegia woodland. P. lindleyanum Steud., a similarly small annual species from W. Africa, Central African Republic, Cameroun and Zambia may be distinguished by the ascending, narrow leaf-blades up to 3 mm. wide and slightly smaller spikelets 1.4–1.7 mm. long.

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