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Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Abstract

CAVALCANTI, Laise de Holanda; SANTOS, Eneida Jucene dos  and  GOMES, Núbia Abrantes. Myxomycetes from Roraima state, with special reference to the Maracá ecological reserve (Amajari - RR, Brazil). Acta Amaz. [online]. 1999, vol.29, n.2, pp.195-200. ISSN 0044-5967.  http://dx.doi.org/10.1590/1809-43921999292200.

This survey raises the number of registers referred to the State of Roraima to 28 species of Myxomycetes. Of these, 24 were collected in the Maracá Ecological Reserve (Lat.3°l 5' - 3°35'N, Long. 61°22' - 61°58'WG). The following families and genera are registered: Ceratiomyxaceae (Ceratiomyxa, 4 sp); Cribrariaceae (Cribraría, lsp, Dictydium, lsp); Didymiaceae (Didymium, 2 sp); Enteridiaceae (Lycogala, 1 sp, Tubifera, 2 sp); Physaraceae (Craterium, 2 sp, Fuligo, 1 sp, Physarum, 2 sp); Stemonitaceae (Comatricha, 1 sp, Stemonitis, 4 sp); Trichiaceae (Arcyria, 3 sp, Hemitrichia, 2 sp, Perichaena, 1 sp, Trichia, Isp). One family, seven genera and eleven species are new records for the State; one of them, Ceratiomyxa sphaerosperma Boedj., is new for Roraima State and Northern Brazil. Comments and geographical distribution of these species are presented.

Keywords : Myxomycetes; floristics; ecological reserves; chorology; Ceratiomyxa.

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