ABSTRACT
The new genus Phialemonium is described for the three new species Ph. obovatum, Ph. curvatum, and Ph. dimorphosporum. The genus is intermediate between Acremonium Link: Fr. and Phialophora Medlar, being characterized by short cylindrical, lateral adelophialides arising from creeping vegetative hyphae, and by lacking conspicuous collarettes and periclinal wall thickenings. For the Phialophora hoffmannii group, the genus Lecythophora Nannfeldt is reintroduced. The new combinations L. hoffmannii and L. mutabilis are proposed.