Abstract
A new species of Diderma (Physarales, Didymiaceae) was recorded in the Mata Estrela Private Nature Reserve, Rio Grande do Norte state. It is characterized by sessile sporangia, white globose columella, capillitium irradiating from the peridium, forming three layers, the middle part strongly calcareous, the outer layer cartilaginous and the inner layer membranous. A key to species of sessile sporangia Diderma with triple peridium is presented.
Key words:
Didymiaceae; Neotropic; triple peridium
Resumo
Uma nova espécie de Diderma (Physarales, Didymiaceae) foi registrada na Reserva Particular do Patrimônio Natural Mata Estrela, estado do Rio Grande do Norte, caracterizada por esporângio séssil, columela globosa, branca, capilício irradiando do perídio, formando três camadas, com a parte mediana fortemente calcárea, a parte externa cartilaginosa e a interna membranosa. Uma chave para espécies de Diderma com esporângios sésseis e perídio triplo é apresentada.
Palavras-chave:
Didymiaceae; Neotrópico; perídio triplo
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Acknowledgments
Aline E. Nascimento, of the Núcleo de Pesquisas em Ciências Ambientais, Universidade Católica de Pernambuco, Recife, PE, for the illustrations in MEV; PhD. Jose Carmine Dianese for the Latin diagnosis; Richard Boike for correcting the English; staff of the Laboratório de Myxomycetes (LABMIX) for field and laboratory assistance; board of the Mata Estrela Reserve for support during the collection period; the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for funding; the Botany Department of the Universidade Federal de Pernambuco for physical support.
References
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Publication Dates
-
Publication in this collection
Jan-Mar 2010
History
-
Received
06 Oct 2009 -
Accepted
11 May 2010
