A new pleomorphic species of Humicola from Saskatchewan soil

Abstract

Humicola dimorpliospora is described as a new species. It is pleomorphic, producing dark, thick-walled, holoblastic conidia from portions of the vegetative hyphae as the principal spore type and hyaline, thin-walled, holoblastic conidia from sympodially proliferating conidiogenous cells as the secondary. The secondary spore type is characteristic of the genus Sporothrix. The type culture, ATCC 22422, was isolated from Saskatchewan soil, Canada, and is being preserved by freeze-drying and by storage in liquid nitrogen at – 196C. The range of temperature for growth of the fungus is 10 to 30C.