Endoparasites of soil nematodes and rotifers II: The genus Haptocillium

Two species of nematode endoparasites, Acrostalagmus bactrosporus Drechsler and Acrostalagmus obovatus Drechsler, which infect by spore adhesion, are transferred into the recently erected genus, Haptocillium Zare and Gams. We report on these species for the first time since their initial description over 60 years ago. Cultivation of both these fungi on corn meal agar revealed the production of alternative spore types not seen in association with the nematode host.