The currently accepted type species of the genus Trichosporon Behrend is T. beigelii. This species has formerly been regarded as identical to T. cutaneum. However, these fungi are now known to represent separate species with different ecology. The first species described in Trichosporon was T. ovoides, an agent of human white piedra. A neotype strain is designated for this species, while a lectotype strain is indicated for T. cutaneum. The name T. beigelii is considered as doubtful and consequently cannot be maintained.