African Plant Database


Pycreus P. Beauv.
Protologue : Fl. Oware 2: 48 (1816) 
 
Species
 
Status
Status for MA : accepted (present)
Status for NA : accepted (present)
Status for SA : accepted (present)
Status for TA : accepted (present)
 
Ecology and distribution
Trop. Afr.
Biology : Pycreus differs from the latter in its laterally compressed pistils with only two style branches (a character shared with Kyllinga and Queenslandiella which have, however, deciduous spikelets). The inflorescence is open anthelate to capitate, with partial inflorescences ± open spike-like, with few to many sessile spikelets in the axil of glume-like bracts. Spikelets with distichous deciduous glumes, each subtending a floret (bisexual). The achenes are arranged in a single row down the two opposite sides, like small discs set on edge. The rachilla is 4-sided (in Cyperus flattened). The achenes and their bracts are shed gradually from the bottom up, exposing the scarred rachilla (Reynders & al. in Taxon 60: 890-893, 2011; Goetghebeur in Kubitzki, ed., Families & genera vascul. plants: IV: 172, 1998; Browning & Goetghebeur, Sedge genera Africa & Madag.: 69, 2017).
Ecology : Cosmopolitan genus of c. 120 species with a mainly African and Madagascan distribution.

Bibliography for Tropical Africa :
  • Énum. Pl. Fleurs Afr. Trop. 3: 200 (1995).
  • Énum. Pl. Fleurs Afr. Trop. 4: 600, 602 (1997).

Bibliography for North Africa :
  • DOBIGNARD, A. & C. CHATELAIN (2010). Index synonymique de la flore d'Afrique du Nord. Conservatoire et Jardin botaniques Ville de Genève. hors-série. 1: 122

Bibliography other :
  • LEBRUN J.P. & A. STORK (2020). Cyperaceae Trop. Afr. Flow. Plants (Ecol. Distr.) 11: 283
 
More info on :
see under Jstor_African Plant Initiative
see under chg
see under The Euro-Mediterranean Plant Base
see under Catalogue de Madagascar
see under Tropicos.org. Missouri Botanical Garden
see under Herbarium, North Africa MPU
 
Map
More information >> ( work in progress )
 
Record n°194231 modified 2008-12-27
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