Cultures similar to H. rufa, floccose, media becoming discoloured, isabelline, ^,conidia formed within seven days, dark olivaceous, developing over whole surface of culture. Mycelium 3-8µ, diameter, often slightly swollen immediately below a transverse septum. Conidiophores produced in tufts more or less verticillately branched immediately below a transverse septa. Phialides arranged in terminal or lateral whorls of 2-5, usually pyriform, 5-5-10 x 3-5µ. Conidia catenulated from tips of phialides, globose, rarely oval, 2-3-5 x 2-3-3µ, pigmented and echinulate.

Chlamydospores absent.

Mature perithecia were formed on a small effuse stroma on a culture approximately ten days old.

This species has not hitherto been recorded from New Zealand. Collections typical of European material were obtained from Glandville Forest, Totara Flats, Westland, in April, 1955, growing on branches of dead Nothofagus fusca (Hook. f.) Oerst. The conidial stage of this species is typical of T. viride.