Open Access Open Access  Restricted Access Subscription or Fee Access

A new species of Graphis (Graphidaceae: Lichenized Ascomycota) and a revised key of the genus in Rio Grande do Sul, southern Brazil

SHIRLEY CUNHA FEUERSTEIN, NATÁLIA MOSSMANN KOCH, FABIANE LUCHETA, VERA MARIA FERRÃO VARGAS, ROSA MARA BORGES DA SILVEIRA

Abstract


(A new species of Graphis [Graphidaceae: Lichenized Ascomycota] and a revised key of the genus in Rio Grande do Sul, southern Brazil). In this paper we describe a new species of the lichen genus Graphis, namely G. suzanae Koch & Feuerstein. This species is characterized mainly by lirellae with entire labia, a partially exposed disc with orange pigment in the epithecium, a lateral thalline margin, a laterally carbonized excipulum, a clear hymenium, and transversely septate ascospores measuring 40–44 × 8–10 μm. The chemistry of the species was assessed through TLC analysis. A complete key with G. suzanae and 56 more species of Graphis that where previously recorded to the state of Rio Grande do Sul, southern Brazil, is included.


Keywords


Lichens, microlichens, corticolous lichens, subtropical rain forests, Atlantic Forest

Full Text:

PDF (1MB)


DOI: http://dx.doi.org/10.11646/phytotaxa.289.3.7

Refbacks

  • There are currently no refbacks.


ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand