Abstract

Summary1. There is great variation in the sporangiocarps of E. malleola. Large and small sporangial types of fructifications are noted.2. The spores germinate readily in water.3. By means of anastomoses larger distributive hyphae develop.4. Protoplasmic movement is very rapid in the distributive hyphae.5. Large masses of firmly interwoven moniliform cells superficially resembling sporangiocarps develop on cultures, but true sporangiocarps were never produced.6. The development of the sporangia is entirely phycomycetous.7. A close relationship between E. malleola and Mortierella is noted.I wish to express my indebtedness to Dr. Roland Thaxter for suggestions during the progress of my work and for reading a first draft of this paper and adding more helpful suggestions. Thanks are also due Dr. Thaxter and Dr. E. A. Burt for identifications and Prof. T. J. Fitzpatrick for proof-reading the paper.

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