Two New Chytrid Genera

Abstract

Two parasitic chytrids, each constituting a new genus, were isolated from soil collections. Spore discharge by the dissolution of the sporangial wall is characteristic of the first genus, Solutoparies. The type species, S. Pythii, is parasitic on Pythium. A new genus, Septosperma, is erected for Phlyctidium anomalum Couch and the second parasitic chytrid, S, Rhizophidii, both of which possess an elongated resting body, divided by a cross wall into an empty basal portion and an apical portion containing protoplasm and one or more oil globules. Septosperma Rhizophidii parasitizes Rhizophidium.