Two new species of Agaricales and a new Japanese record for Boletellus betula from Japan

Three species of Agaricales and Boletales are fully described and illustrated from Japan: (1) Clitopilus vernalis sp. nov. produces collybioid basidiomata with pruinose, greyish-yellow pileus and stipe, obscurely undulate basidiospores, and has a lignicolous habit fruiting in spring on dead decorticated logs of Pinus densiflora; (2) Favolaschia gelatina sp. nov. (section Anechinus subsection Rubrinae) has pleurotoid, astipitate basidiomata with transparent, elastic, jelly-like flesh, and truly poroid hymenophore; (3) Boletellus betula is a new record for Japan, growing in Quercus crispula and Pinus densiflora forests.