Taxonomic and nomenclatural aspects of Hypoxylon taxa from southern South America proposed by Spegazzini

• Autores: Hladki, A.I.; Romero, A.I.
• Año de publicación: 2009
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Mycologia 2009;101(5):733-744
• Materia: Latin America; New Combinations; Xylariaceae; fungus; new record; nomenclature; taxonomy; Latin America; Southern Cone; Annulohypoxylon; Biscogniauxia capnodes; Creosphaeria sassafras; Hypoxylon; Hypoxylon anthochroum; Hypoxylon diatrypeoides; Hypoxylon intermedium; Hypoxylon lenormandii; Hypoxylon monticulosum; Hypoxylon notatum; Hypoxylon rubiginosum; Nemania; Phylacia; Rosellinia bunodes; Sassafras; Xylariaceae; Argentina; article; classification; genetics; microbiological examination; nomenclature; South America; ultrastructure; Xylariales; Argentina; Mycological Typing Techniques; South America; Terminology as Topic; Xylariales
• Institución: Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales

The holotypes and isotypes of 20 Hypoxylon taxa described by Spegazzini have been examined and their taxonomic positions and nomenclatural problems are discussed. Two new combinations, Annulohypoxylon apiahynum comb. nov. and A. subeffusum comb. nov., are proposed. H. goliath is considered a synonym of Rosellinia bunodes. H. albostigmatosum and H. guarapiense are synonyms of H. anthochroum, H. anthracoderma of H. monticulosum, H. mbaiense of H. notatum, H. paulistanum of H. diatrypeoides, H. plumbeum and H. rubiginosum var. microcarpum of H. perforatum. H. porteri and H. intermedium belong in Biscogniauxia capnodes, H. puiggarii in Annulophypoxylon subeffusum, H. subvinosum. in H. lenormandii, H. turbinatum var. guaraniticum in Phylacia turbinata and H. valsarioides in Creosphaeria sassafras. H. leptascum is transferred to A. leptascum, H. circostomum to Nemania circostoma and H. latissimum to N. latissima. The holotype of H. albostigmatosum has been recovered, thus the lectotypification by Shear no longer is needed. H. subnigricans and H. umbilicatum are confirmed as good taxa. H. anthochroum and H. lenormandii are reported as first records from Argentina (Tucumán). © 2009 by The Mycological Society of America, Lawrence, KS 66044-8897.
Fil:Romero, A.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.