Studies on Calvatia gigantea. I. Germination of the Basidiospores

Abstract
The basidiospores of Calvatia gigantea have been germinated in 6 different broth media and malt-extract agar inoculated with Rhodotorula mucilaginosa var. sanguinea. The per cent germination is less than 0.001, the yeast can be replaced by a bacterium, spores from only certain sporophores germinated, incubation of at least 4 weeks is required to observe visible colonies, and in malt extract agar (the most suitable for germination) seeding the spores into the medium appears to increase the germination rates.

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