Trichosporon beigelii

Trichosporon beigelii is a species of fungus in the family Trichosporonaceae. It is a yeast that was formerly considered to be the cause of an unpleasant hair condition called white piedra and also the cause of a more serious severe opportunistic infection (trichosporonosis) in immunocompromised individuals. Recent research, however, has shown that several Trichosporon species are involved in these infections. Since it is unclear to which of these species the name Trichosporon beigelii should be applied, the name is now considered obsolete.