Studies in African Cyperaceae 38: Cyperus inselbergensis sp. nov. from inselbergs in Gabon and Cameroun

Cyperus inselbergensis Lye is described from northern Gabon and adjacent Cameroun. It has a very characteristic ecology as it grows in seasonally wet, shallow soils on or close to inselbergs. The species belongs to Cyperus subgen. Kyllinga and is most similar to C. triceps , but differs in its hemispherical inflorescence, smaller spikelets, different glumes with scabrid midrib, and smaller fruits. The species is widespread and locally common in its restricted habitat.