Three new species of Graphis (Ascomycota: Ostropales: Graphidaceae) from Mexico, with updates to taxonomic key entries for 41 species described between 2009 and 2013
2014
Three species of Graphis (Graphidaceae) are described from Mexico from two research stations of the Universidad Nacional Autónoma de México (UNAM): Chamela Biological Station in the Cuixmala-Chamela Biosphere Reserve, Jalisco, and Los Tuxtlas Tropical Biological Station in the Los Tuxtlas Biosphere Reserve, Veracruz. The new species Graphis bungartzii Barcenas-Peña, Lücking, Herrera-Campos & R. Miranda is characterized by erumpent lirellae with a lateral thalline margin, striate labia and laterally carbonized exciple, transversely septate ascospores, and norstictic and connorstictic acids. Graphis chamelensis Barcenas-Peña & Lücking has prominent lirellae with a basal to lateral thalline margin, entire labia and completely carbonized exciple, transversely septate ascospores, and norstictic acid. Finally, Graphis rosae-emiliae Barcenas-Peña & Lücking is characterized by erumpent lirellae with lateral thalline margin, striate labia and completely carbonized exciple, transversely septate ascospores, and no substances detected by TLC. We present updates to the world key to Graphis for 41 newly described or reinstated species since the world key was published in 2009. The following new combination is proposed: Pallidogramme parvicarpum (B. O. Sharma & Khadilkar) Lücking comb. nov., based on Graphis parvicarpa B. O. Sharma & Khadilkar.
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