Compilation
Ctenium somalense

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Name

Identification
Ctenium somalense (Chiov.) Chiov. [family GRAMINEAE ] (stored under name); Verified by Data not digitized, Ctenium nubicum De Not. [family GRAMINEAE ] Verified by Data not digitized,
Related name
  • Ctenium somalense
  • Ctenium nubicum

Flora

Entry for CTENIUM somalense (Chiov.) Chiov. [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
CTENIUM somalense (Chiov.) Chiov. [family POACEAE], in N. Giorn. Bot. Ital., n.s., 26: 82 (1919); Clayton in K.B. 20: 265 (1966). Type: Ethiopia, Sidamo, Gobbo Duaya, Riva 180 (1486) (FI, lecto.!)
CTENIUM nubicum Chiov. var. somalense [family POACEAE], in Ann. Ist. Bot. Roma 7: 72 (1897)
CTENIUM concinnum Pilg. var. minus [family POACEAE], in N.B.G.B. 9: 118 (1924). Type: Madagascar, S. Betsileo, Hildebrandt 4000 (K, iso. !)
CTENIUM concinnum var. indutum [family POACEAE], [sensu Ann. list grasses Ug.: 10 (1947), pro parte; I.G.U.: 23 (1960), pro parte, non Pilg.]
CTENIUM concinnum [family POACEAE], [sensu R.K.G.: 24 (1958), pro parte; G.T.: 40 (1965), non Nees]
CTENIUM minus (Pilg.) W. D. Clayton [family POACEAE], in K.B. 16: 473 (1963)
Information
Tufted wiry perennial, the basal sheaths breaking up into a dense mass of fibres; culms up to 1 m. high. Leaf-blades up to 35 cm. long, involute or rarely flat and linear. Spikes solitary, mostly 5–10 cm. long, curved in an arc, bearded at the summit of the peduncle. Upper glume 4.5–5 mm. long, hispidulous; lowest lemma oblong-elliptic, 1.7–2.6 mm. long, ciliate on keel and marginal nerves, glabrous to sparsely pubescent between them, cuspidate at the apex, awned from below the tip; second lemma lanceolate, 2.5–3 mm. long, ciliate on keel and marginal nerves, glabrous or sparsely pubescent between, produced into an oblong tongue 0.5–1 mm. long above the insertion of the awn; fertile lemma ovate, 2.7–3.5 mm. long, long-ciliate on the marginal nerves with hairs 2 mm. long, glabrous between, awned from just below the tip with an awn 3.5–5 mm. long. Fig. 91, p. 326.
Range
DISTR. U1–4; K6, 7; T1, 4, 8 Sudan southwards to Zaire and Zambia
Altitude range
450–1500 m.
Distribution
KENYA Masai District Mara Game Reserve, Siria escarpment, TaitiKENYA Kwale District Shimba Hills, 11 Jan. 1954, Bogdan 3905 ! & 14 Mar. 1968, Magogo & Glover 279 !TANZANIA Biharamulo, 15 Nov. 1962, Verdcourt 3308 !TANZANIA Musoma District Mara R. Guard Post, 21 Aug. 1962, Greenway 10767 !TANZANIA Lindi District Ruponda, 4 Feb. 1949, Anderson 304 !UGANDA W. Nile District Terego, June 1938, Hazel 576 !UGANDA Ankole District Ibanda, 25 Mar. 1929, Snowden 1329 !UGANDA Masaka District Sese Is., Bugala I., 24 Feb. 1945, Greenway & A. S. Thomas 7170 !
Distribution (external)
Madagascar
Notes
C. somalense is replaced in the southern half of the continent by C. concinnum, with which it has commonly been confused by East African authors.

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