Abstract 2787 from Intl. Bot. Congress 1999

ibclogo XVI International Botanical Congess

Abstract Number: 2787
Poster No. = 92

ASCOSPORE COLOR IS NOT A USEFUL GENERIC CHARACTER IN HYPOCREA

P.Chaverri, G. J. Samuels# and E. L. Stewart (*Dept. of Plant Pathology, The Pennsylvania State University, Buckhout Lab., University Park, PA 16802, and #Systematic Botany and Mycology Lab., USDA-ARS, Beltsville, MD 20705).

The type species of Hypocrea, H. rufa, has hyaline ascospores. Several species included in the genus have green ascospores. Creopus and Chromocrea have been segregated from Hypocrea based on ascospore pigmentation. There is diversity within Hypocrea with respect to teleomorph/anamorph morphology and anatomy, although all anamorphs can be classified in Trichoderma. The green-spored Hypocrea do not form a homogeneous subset within Hypocrea, some species are more similar to species that have hyaline ascospores than other species that have green ascospores. Based on the limited sampling with this study, ascospore color does not correlate with any other phenotypic characters to delimit a genus that is distinct from Hypocrea.

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ASCOSPORE COLOR IS NOT A USEFUL GENERIC CHARACTER IN HYPOCREA

P.Chaverri*, G. J. Samuels# and E. L. Stewart* (*Dept. of Plant Pathology, The Pennsylvania State University, Buckhout Lab., University Park, PA 16802, and #Systematic Botany and Mycology Lab., USDA-ARS, Beltsville, MD 20705).

P.Chaverri, G. J. Samuels# and E. L. Stewart (*Dept. of Plant Pathology, The Pennsylvania State University, Buckhout Lab., University Park, PA 16802, and #Systematic Botany and Mycology Lab., USDA-ARS, Beltsville, MD 20705).