ERAGROSTIS chalarothyrsos C. E. Hubbard [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
ERAGROSTIS chalarothyrsos C. E. Hubbard [family POACEAE], in K.B. 1936: 310 (1936); Clayton in F.W.T.A., ed. 2, 3: 390 (1972). Type: Sierra Leone, Mange, Glanville 240 (K, holo.!)
Information
Perennial, tufted or arising from a short oblique rhizome; culms 60–100 cm. high. Leaf-blades flat or rolled, up to 25 cm. long and 2–4 mm. wide. Panicle ovate-elliptic, 6–20 cm. long, usually loose. Spikelets 9–24-flowered, broadly ovate to ovate-oblong, 4–12 mm. long, (3–)3.5–5.5 mm. wide, the opposite rows of florets not overlapping and the rhachilla ± exposed, greyish green, breaking up from the base, the rhachilla persistent; glumes subequal, lanceolate, 1.5–3 mm. long; lemmas ovate-elliptic and acute when flattened, (2–)2.5–3 mm. long; palea falling soon after the lemma, the keels scaberulous; anthers 3, 1–1.5 mm. long. Caryopsis ellipsoid, 1 mm. long. Fig. 61/5, p. 193.
Range
DISTR. U1–4; K3–6
Altitude range
1100–2500 m.
Distribution
KENYA Trans-Nzoia District 25 km. E. of Kitale, 8 Nov. 1961, Bogdan 5312 ! & Hoey’s Bridge, Hill’s farm, 18 June 1948, Bogdan 1670 !KENYA Kiambu/Machakos District Fourteen Falls, 27 Apr. 1960, Napper 1529 !UGANDA Karamoja District Kokumongole, 28 May 1939, A. S. Thomas 2885 ! & Mt. Napak, Apr. 1964, J. Wilson 1685 !UGANDA Mengo District Luwero-Wakyato, 19 Apr. 1956, Langdale-Brown 2050 !
Distribution (external)
also in Sierra Leone
Ghana
Notes
E. chalarothyrsos merges with 32, E. inamoena and 34, E. paniciformis. It is distinguished from the former by its broader ovate spikelets, though the division is somewhat arbitrary for both ovate and narrowly oblong spikelets may sometimes be found on the same plant. It differs from E. paniciformis in its scaberulous palea-keels and exposed rhachilla.
ERAGROSTIS chalarothyrsos C. E. Hubbard [family POACEAE]
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