SUMMARY
The marine Phycomycetes Chytridium polysiphoniae, Petersenia lobata, Sirolpidium bryopsidis, Thraustochytrium proliferum, and Phlyctidium brevipes var. marinum are reported from the North Carolina coast. Chytridium sp. and Lagenidium sp. are described. Two unnamed forms are discussed and tentatively assigned to the genera Olpidiopsis and Rhizophydium. The sporangial stage of an endobiotic, holocarpic fungus occurring in ostracods is described, but the generic position is not established. An Olpidium, tentatively identified as O. entophytum, is reported from Melosira.