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ADDITIONAL EXERCISES 



4. Powdery, yellowish- white, spores tuberculate, ammoniacal odor. P. 

 brevicaule var. album. 



5. Forming yellowish-brown areas, spores rough, ammoniacal odor. P. 

 brevicaule (Fig. 248). 



Cheese (Roquefort). 



I. Green streaks inside the cheese. P. Roquejorli (Fig. 244). 



Fig. 262. — Penicillium digilalum. a, Whole conidiophore and_ fructification; b, 

 c, d, e, types of branching and formation of conidiospores; m, n, o, germination of 

 conidiospores. {After Thorn.) 



P. italicum (Fig. 247). 

 P. digitatum-olivaceum . 



Citrus fruits. 



1. Colonies of mould, blue-green. 



2. Colonies of mould, olive-green. 

 Pomaceous fruits (apples, pears, etc.). 



I. Blue-green colonies finally producing 

 Polyporaceae (Boleti, Polypori, etc.). 



I. Colonies green (yellowish-green), spreading by stolons. P. stolonijerum 

 (Fig. 246). 



P. expansum (Fig. 243). 



