New species of the Heterodermia comosa-group (Physciaceae, lichenized Ascomycota) from southern South America

Andrea MICHLIG, Maria Pia RODRÍGUEZ, André APTROOT, Nicolás NIVEIRO & Lidia Itatí FERRARO

en Cryptogamie, Mycologie 38 (2) - Pages 155-167

Published on 30 June 2017

A revision of the specimens from southern South America deposited at CTES herbarium identified as Heterodermia comosa (Eschw.) Follmann & Redón was made. As a result, four new species, viz. H. mobergiana Michlig, M.P. Rodríguez &Aptroot, H. neocomosa M.P. Rodríguez L.I. Ferraro & Aptroot, H. ramosociliata M.P. Rodríguez, Michlig & Aptroot, and H. sorediosa Michlig, L.I. Ferraro & Aptroot, all closely related to H. comosa, are here proposed. Each species is described, illustrated and commented. A distribution map is also presented.

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