THE GENUS CREPIDOTUS (FR) STAUDE IN EUROPE

The genus Crepidotus in Europe is considered. After an examination of 550 collections seventeen species and eight varieties are recognized. Two keys are supplied; all taxa accepted are typified. Morphological, ecological and chorological characters are critically evaluated. Descr iptive statistics are used for basidiospore size. An infrageneric clas sification is proposed based on phenetic relationships using different cluster methods. The new combinations C. calolepis var. squamulosus a nd C. cesatii var. subsphaerosporus are introduced. The spore ornament ation as seen in the scanning electron microscope provides the best ch aracter for species delimitation and classification.