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HYPARRHENIA anamesa W.D. Clayton [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
HYPARRHENIA anamesa W.D. Clayton [family POACEAE], in K.B., Addit. Ser. 2: 85 (1969). Type: Kenya, Masai District, Olodungoro, Glover, Gwynne, Samuel and Tucker 2145 (K, holo.!, EA, iso.)
Information
Densely caespitose perennial, the basal sheaths glabrous or sometimes loosely hirsute; culms 60–120 cm. high. Leaf-blades up to 40 cm. long and 4 mm. wide, but often much shorter, harsh, glaucous. False panicle 15–45 cm. long, loose; spatheoles linear, 4–6 cm. long, the peduncles usually longer; racemes 1.5–2.5 cm. long, 4–6(–7)-awned per pair, white villous, not deflexed; raceme-bases very unequal, the upper 3.5–6 mm. long, glabrous or sometimes softly hirsute. Homogamous pairs 1 or 2 at the base of the lower raceme, and 2 at the base of the upper. Sessile spikelet 5–6.5 mm. long, white villous; callus 1–1.8 mm. long, acute; awn 2.5–4 cm. long, pubescent with hairs 0.1–0.6 mm. long. Pedicelled spikelet white villous, muticous or occasionally with an awn-point 1–2 mm. long. Fig. 184.
Range
DISTR. K1–4, 6; T2, 4, 5, 7, 8 eastern Africa from Sudan to the Cape
Altitude range
100–2500 m.
Distribution
KENYA Northern Frontier Province Kulal, 11 June 1960, Oteke 143!KENYA Uasin Gishu District Eldoret, 20 Sept. 1929, Hitchcock 25006!KENYA Nairobi District European Hospital, 2 Feb. 1950, Bogdan 2811!TANZANIA Arusha District Ngurdoto Crater National Park, Trappe’s View, 28 Mar. 1966, Greenway & Kanuri 12502!TANZANIA Moshi District Sanya Plain, 11 Feb. 1968, Leippert 5546!TANZANIA Songea District 35 km. N. of Songea, Njombe road, 13 May 1962, Boaler 599!
Notes
H. anamesa links the primarily Mediterranean H. hirta to the tropical H. filipendula (Clayton in K.B. 30: 568 (1975)). It is not usually difficult to distinguish from the latter, which has longer awn-hairs. It is less sharply separated from H. hirta, the 2 homogamous pairs of the upper raceme and the fewer awns per raceme pair being the most reliable characters.
HYPARRHENIA anamesa W.D. Clayton [family POACEAE]
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