RESUMO
Four new Annulohypoxylon species are described from northeastern Brazil: A. austrobahiense, A. macrodiscum, A. hemicarpum and A. purpureopigmentum. A key is provided.
Assuntos
Árvores/microbiologia , Xylariales/classificação , Brasil , Especificidade da Espécie , Esporos Fúngicos/ultraestrutura , Clima Tropical , Xylariales/genética , Xylariales/ultraestruturaRESUMO
Six xylariaceous fungi, including two Hypoxylon taxa and four Nemania taxa, are described as new. They were collected from either Costa Rica or Taiwan. Two of the Nemania species--N. flavitextura and N. primolutea--were cultured and typical Geniculosporium anamorphs were produced.
Assuntos
Xylariales/classificação , Xylariales/isolamento & purificação , Costa Rica , Microscopia , Microscopia de Interferência , Fotografação , Fotomicrografia , Esporos Fúngicos/citologia , Taiwan , Xylariales/citologia , Xylariales/crescimento & desenvolvimentoRESUMO
Paramphisphaeria is described as a new genus on the basis of the single species, P. costaricensis. It differs from Amphisphaeria spp. primarily in having bicellular ascospores with a germ slit and in having an ascus apical ring that does not become blue in iodine. It resembles Amphisphaeria in its brown color and lack of constriction at the septum of the ascospore. An anamorph is unknown. It tentatively is placed in the Xylariaceae for reasons discussed. Pachytrype rimosa is described as a new species.