The stipitate species of Hypocrea (Hypocreales, Hypocreaceae) including Podostroma

Abstract

ULVINEN, T. & SAMUELS, G. J. 2004: The stipitate species of Hypocrea (Hypocreales, Hypocreaceae) including Podostroma. – Karstenia 44: 1– 24. 2004. Helsinki. ISSN 0453-3402. Stipitate species of Hypocrea have traditionally been segregated as the genus Podo-stroma. The type species of Podostroma is P. leucopus for which P. alutaceum has been considered an earlier synonym. Study of the type and existing specimens suggests that these two taxa can be distinguished based on morphology and biology. Podo-stroma leucopus is herein recognized as Hypocrea leucopus (P. Karst.) H. Chamb., comb. nov., thus Podostroma is a synonym of Hypocrea. The genus Podocrea, long considered a synonym of Podostroma, is based on Sphaeria alutacea, a species that is recognized as H. alutacea. A neotype is designated for Sphaeria alutacea. Both H. alutacea and H. leucopus are redescribed and illustrated. The new species H. nyber-giana T. Ulvinen & H. Chamb., spec. nov. is described and illustrated. In addition to H. leucopus, seven species of Podostroma are transferred to Hypocrea, viz. H. africa-na (Boedijn) H. Chamb., comb. nov., H. cordyceps (Penz. & Sacc.) H. Chamb., comb. nov., H. daisenensis (Yoshim. Doi & Uchiy.) H. Chamb., comb. nov., H. eperuae (Rogerson & Samuels) H. Chamb., comb. nov., H. gigantea (Imai) H. Chamb., comb. nov., H. sumatrana (Boedijn) H. Chamb., comb. nov., and H. truncata (Imai) H. Chamb., comb. nov. A key to the 17 species of stipitate Hypocrea including Podo-stroma and Podocrea is presented.