New Zealand Journal of Botany abstract

Notes on the lichen genus Coccotrema in southern South America

M. I. MESSUTI

Centro Regional Universitario Bariloche
Unidad Postal Universidad Nacional del Comaluve
Quintral 1250
Prov. Río Negro
8400 S. C. de Bariloche, Argentina

Abstract  Two species of the genus Coccotrema Müll. Arg. (lichenised Ascomycotina) occur in southern South America, Coccotrema cucurbitula (Mont.) Müll.Arg. and Coccotrema porinopsis (Nyl.) Imshaug ex Yoshimura. Based on new results of taxonomic studies, the following species are rejected as C. porinopsis synonyms and transferred to C. cucurbitula synonyms: Pertusaria adveniens Nyl., Pertusaria adventans Nyl., Pertusaria thelioplaca Nyl. A key to the species, details of their morphology, chemistry, geographic distribution, habitat, and taxonomic position are given.

Keywords  lichens; Coccotrema; Coccotrema cucurbitula; Coccotrema porinopsis; species characterisation; taxonomic synonymy; geographic distribution; Chile; Argentina

B94037

Received 5 September 1994; accepted 19 October 1995

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