โ Scribed by Dogma, Irineo J.
No coin nor oath required. For personal study only.
Two new species of Endochytrium, E. multiguttulatum and E. cystarum, are described. Nephrochytrium buttermerense Willoughby is transferred to Diplophlyctis under the binomial Diplophlyctis butte~'meren~.e (Willoughby) comb. nov. Morphologic and developmental information on an incompletely known fungus, possibly a Solutoparies, and on other previously known cellulosic chytrid species are also given.
Many interesting chytridiaceous fungi have come to light since a continuing investigation of the phycomycetous flora of the Douglas Lake region (Michigan) and vicinity was initiated by SPA~I~OW (1952) in the summer of 1948. To summarize, a total of nineteen new chytrid species and one new variety of an algal parasite have been reported from the area, together with a rich file of information on numerous previously described forms occurring in various habitats and populating a wide variety of substrata (Sr~a~gow and BA~, 1955; PAT~t~SO~, 1956; JoHns, 1956). A number of incompletely known forms have also been noted (SeAn~ow and KocR, 1959; SF~ow, PaTErSON, and JO~NS, 1965). During the summers of 1967 and 1968 further studies were made on the chytrid flora of the area, and it is the purpose of this paper to report on some of these minute fungi captured on such cellulosic substrata as lens paper, onion skin, and cellophane. Two of them belong to the genus Endochytrium and are described here as new. Another one, Nephrochytrium b~ttermerense W~LOUGEBY (1962b), is herein transferred to Diplophlyctis under the binomial Diplophlyctis bu~termerense (Willoughby) comb. nov.
๐ SIMILAR VOLUMES
The morphology and reproduction of a Physoderma found on Ranunculus septentrio~alis Poir. in Northern Michigan are described. Host range studies indicate it is confined to certain Ranunculaceae and does not infect hosts from other families in the area which also carry Physoderma infections.
~cmbers of the Tribe Scirpeae Kunth of the Cyperaceae have had a variety of fungi described from its members. Phycomycetous parasites, however, are not common and in Physoderma of the Chytridiales, 3 speeies have been described thus far, namely, P. heleocharidi8 (Fuekel) 8chroeter on Eleocharis, P.