TABLE 3.

Salient phenotypic characteristics of strains of T. viride M type I (true T. viride) and type II (T. asperellum)

T. viride group	Characteristic
	Conidial warts	Conidiophores	Phialides	Chlamydospores	Temp optimum	Colony radius (mm)a
T. viride	Conspicuous	Irregularly branched; branches usually not paired	Tending to be sigmoidal or hooked; l/w ratio, 3.3	Typically absent	25	11–33
T. asperellum	Inconspicuous	Regularly branched; branches typically paired	Straight; l/w ratio, 2.4	Typically present	30	31–47

^aRadii of colonies on PDA after incubation at optimum temperature for 48 h.