Resting spores of Empusa muscae, the so-called "fly cholera" fungus, were described in 1881 by Winter from Germany. Since then they have been diligently sought for by a number of competent investigators, but were not again reported until 1923, when Miss Goldstein described them as occurring abundantly on house flies in the vicinity of New York. The latter author regards them as true chlamydospores, formed under dry conditions after.conidial discharge has ceased to be possible, and apparently found them only on old flies which had long ceased to di charge conidia. She found the resting spores to be thick walled, multinucleate bodies, usually "well-rounded" and then 30 μ in diameter, sometimes oval, and then usually 21x30 μ.
Proceedings of the Iowa Academy of Science
©1925 Iowa Academy of Science, Inc.
Martin, G. W.
"Notes on Iowa Fungi - 1924,"
Proceedings of the Iowa Academy of Science, 32(1), 219-223.
Available at: https://scholarworks.uni.edu/pias/vol32/iss1/32