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Two New Genera of Operculate Chytrids

Helen Berdan
American Journal of Botany
Vol. 26, No. 7 (Jul., 1939), pp. 459-463
Stable URL: http://www.jstor.org/stable/2436568
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Two New Genera of Operculate Chytrids
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Abstract

A new genus, Catenochytridium, is proposed for an operculate chytrid with a catenulate, compound apophysis and the endo-exogenous method of growth. The type species, C. carolinianum, occurs saprophytically in leaves of grass, and cereal grains in association with other chytrids. A second new genus, Septochytrium, is suggested for an operculate, polycentric chytrid having a coarse rhizomycelium, with constrictions, septations and intercalary swellings. The type species, S. variabile, occurs saprophytically in leaves of grass and cereal grains. It is extremely variable in form and size. These two chytrids have been separated from five others with which they were originally associated and subsequently cultured in "unifungal" state under as nearly sterile conditions as possible.

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