A rather extensive series of collections of the genus Amanita from Malaya and Singapore, provided the basis of 22 species described as new. The obscure species Amanita eriophora (Berk.) Gilb., A. fritillaria (Berk.) Sacc., A. virginea Mass., Armillaria squamosa Mass., and Collybia elata Mass. are redescribed and the last two transferred to Amanita. Amanita similis Boed. is reduced to the rank of a subspecies of A. hemibapha (Berk. & Br.) Sacc. and A. hemibapha sensu Boed. described as A. hemibapha subsp. javanica. Amanita rubrovolvata Imai is recorded for the first time from outside Japan.