Harposporium microsporum sp. nov. was isolated from a sample of rabbit
dung collected from Wellington Country Park in Hampshire. The fungus
was infecting a small species of Rhabditis (Nematoda) which was presen
t in the dung sample at the time of collection. Infection was by means
of microspores produced in the aqueous phase of the substrate. Large
curved aerial spores typical of Harposporium were produced in subcultu
re and pure culture.