We sought evidence for new environmental sources of Cryptococcus neofo
rmans var. gattii by random amplification of polymorphic DNA (RAPD) an
alysis of isolates from 29 animals with a restricted territorial range
in five. Australian states. Twenty-three of the 29 isolates and 45 of
45 eucalypt isolates tested previously exhibited one RAPD profile, VG
I. RAPD profile VGII was identified in 6 of 17 isolates from domestica
ted species but in none of 12 native species. Four VGII isolates origi
nated from an area of Western Australia with no natural stands of know
n eucalypt host, indicating the existence of at least one unrecognized
natural source of C. neoformans var. gattii.