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Cyperaceae Juss. no Morro Santana – Porto Alegre e Viamão, Rio Grande do Sul, Brasil

2008; Fundación Zoobotánica de Rio Grande do Sul; Volume: 63; Issue: 2 Linguagem: Inglês

2446-8231

Gabriela Hoff Silveira, Hilda María Longhi-Wagner,

Plant Diversity and Evolution

A survey of the Cyperaceae at Morro Santana in Porto Alegre and Viamao countries, in the State of Rio Grande do Sul, Brazil, was carried out. Field trips were made monthly from October 2004 to October 2006, registering the environmental characteristics and flowering and fructification periods for each taxon. Fourthy taxa belonging to ten genera were confirmed: Bulbostylis Kunth (five), Carex L. (three), Cyperus L. (ten), Eleocharis R. Br. (six), Fimbristylis Vahl (two), Kyllinga Rottb. (two), Pycreus P. Beauv. (two), Rhynchospora Vahl (five), Scleria Berg. (four) e Websteria S.H. Wrigth (one). Bulbostylis subtilis M. G. Lopez is a new record for Southern Brazil. An analytical key and short descriptions of the confirmed genera are provided. Keys for the species and varieties are also provided, along with data on their flowering and fructification periods, habitat, geographical distribution and illustrations of habit and diagnostic characters.