13 {12) Conidial cells all uniform in diameter; conidiophores 



long, distinct Periconia prolifica 



13 {12} Conidial cells increasing in diameter from base to 



apex; conidiophores short, indistinct .... Cremasteria cymatilis 



14 (8) Conidia staurosporous, single-celled, borne in phialides 



with collarlike rim Clavatospora stellatacuLa 



14 {18) Conidia obpyriform, 1- or 2-celled, produced on conidiophores . . 



Humicola alopallonella 



15 (7) Conidia staurosporous or muriform 16 



15 (7) Conidia ellipsoidal, elongate, curved or helicoid 22 



35 



