African Plant Database

Pycreus melanacme Nelmes
Protologue : Kew Bull. 1955, 91 (1955)
Information on the genus : Pycreus
Status for TA : accepted (present)
Synonym(s) Homotypic
 Cyperus melanacme (Nelmes) Raymond
Ecology and distribution
Trop. Afr.
Biology : Annual herb; culms 16 cm long, 0,4 mm Ø, trigonous, smooth; leaf sheath 1,5-2,5 cm long, reddish-brown; blade linear, folded, 8,5-12,5 cm x 0,8 mm, glabrous; inflorescence capitate, with 2 bracts, lowermost leaf-like, erect, 3-6,5 cm long, second bract inconspicuous, glume-like; spikelets 1-6 per head, ovoid, 5-7x3-4 mm; glumes striking yellow, c. 3x3 mm, apex black; nutlet very little compressed, surface coarsely papillose.
Ecology : Shallow pools; damp places; water edges; humid and rather shady part of open forest; very sandy ground among rocks; 1350-1650 m alt.
  Differs from P. pauper which has an inflorescence of 1-2 spikelets, the 2 bracts always exceeding the spikelet in length, spikelets < 4 mm wide, glumes straw-brown with dark tip, achene compressed with very long concave surface cells in groups bordered by

Bibliography for Southern Africa :
  • Kew Bull. 1955: 91-92 (1956)
More info on :
see under Jstor_African Plant Initiative
see under Flore d'Afrique Centrale
see under The International Plant Name Index
More information >> ( work in progress )
Record n°36240
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