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Four new species of Ocellularia (lichenized Ascomycota: Graphidaceae) from Cuba, with a revised taxonomy of the O. bahiana complex and a key to thelotremoid taxa with small, brown, (sub-)muriform ascospores

Published online by Cambridge University Press:  09 September 2015

Robert Lücking  and
Sergio Pérez-Ortega
Robert Lücking
Affiliation:
Science & Education, Gantz Family Collections Center and IRC, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605-2496, USA. Email: rlucking@fieldmuseum.org.
Sergio Pérez-Ortega
Affiliation:
Departamento Biogeoquímica y Ecología Microbiana, Museo Nacional de Ciencias Naturales (CSIC), C/Serrano 115-dpdo., 28006 Madrid, Spain
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Abstract

Four new species from Cuba are described in the genus Ocellularia, emphasizing the importance of the Caribbean for the diversification of lichen fungi and the level of unrecognized species richness in Ocellularia. Three of the new species belong in the O. bahiana group: O. coronata Lücking & Pérez-Ortega, differing from O. bahiana by the ridged to folded thallus, vertically ridged apothecia, and complex columella largely covering the disc; O. fuscospora Lücking & Pérez-Ortega, differing from O. urceolaris in the immersed to erumpent, columellate apothecia; and O. radiata Lücking, differing from O. bahiana in the complex, radiating columella filling the disc. In contrast, Ocellularia nigririmis Lücking & Pérez-Ortega is a species of the O. papillata morphodeme with immersed apothecia with a small, black-rimmed pore filled by a greyish black columella, and small ascospores. We also clarify the taxonomy and nomenclature of columellate taxa in the O. bahiana group and provide a key to all thelotremoid Graphidaceae with small, brown, (sub-)muriform ascospores. The new combination Ocellularia lunensis (Nagarkar & Hale) Lücking is proposed.

Keywords

Dominican RepublicHispaniolaJamaicalichenOcellularia obturascensOcellularia refertaOcellularia rudior
Type
Articles
Information
The Lichenologist , Volume 47 , Issue 5 , September 2015 , pp. 305 - 322
Copyright
© British Lichen Society, 2015 

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