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Burmanniaceae e Gentianaceae da Usina São José, Igarassu, Pernambuco / Burmanniaceae and Gentianaceae of Usina São José, Igarassu, Pernambuco

Aline Melo, Anderson Alves-Araújo and Marccus Alves
Rodriguésia
Vol. 61, No. 3 (Julho–Setembro 2010), pp. 431-440
Stable URL: http://www.jstor.org/stable/23500676
Page Count: 10
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Abstract

O objetivo deste trabalho é o estudo taxonômico das espécies de Burmanniaceae e Gentianaceae encontradas na Usina São José. As coletas foram realizadas em seis fragmentos florestais entre 2007 e 2009, além do levantamento dos herbários locais. Foram encontradas três espécies de Burmanniaceae: Apteria aphylla, Gymnosiphon divaricatus e G. sphaerocarpus; e quatro de Gentianaceae: Coutoubea spicata, Voyria caerulea, V. obconica e V. tenella. Apenas C. spicata é autótrofa; as demais são mico-heterótrofas. As espécies foram encontradas apenas nos maiores remanescentes e as espécies mico-heterótrofas mostratam-se potenciais bioindicadoras de ambientes conservados. Gymnosiphon sphaerocarpus constitui o primeiro registro para o Brasil. A taxonomic study was made of Burmanniaceae and Gentianaceae from the Usina São José. Collecting was done in six forest fragments, from 2007 to 2009; vouchers from local herbaria were also studied. Three species of Burmanniaceae (Apteria aphylla, Gymnosiphon divaricatus, and G. sphaerocarpus) and four of Gentianaceae (Coutoubea spicata, Voyria caerulea, V. obconica, and V. tenella) were found. Only C. spicata is autotrophic, the others are myco-heterotrophic. Specimens were found only in the largest fragments and the myco-heterotrophs can be considered potential bioindicators of preserved environments. Gymnosiphon sphaerocarpus is recorded for the first time in Brazil.

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