Abstract

SUMMARYTotal spore production by Polyporus pubescens, P. betulina, P. versicolor, Lenzites saepiaria, Fomes annosus, and F. fomentarius at hourly intervals was studied over a 24-hr period using the Dodecapus Hourly Total Spore Collector. Spore discharge ranged up to 3.1 × 107 spores per hr per cm2 of exposed hymenial surface (not the true area of the hymenium). Nocturnal patterns of spore release are reported for six species of Hymenomycetes studied in the greenhouse. Some evidence of double maxima was noted in Fomes fomentarius, Polyporus pubescens, and P. hirsutus. Single nighttime maxima are reported for Gymnopilus sp, F. annosus and P. albellus.

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