Abstract
AbstractThree species ofGraphis(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 speciesGraphis bungartziiBarcenas-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 chamelensisBarcenas-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-emiliaeBarcenas-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 toGraphisfor 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 onGraphis parvicarpaB. O. Sharma & Khadilkar.
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