232 



A MANUAL OP THE PENICILLIA 



buckled and wrinkled with central area commonly raised, 1.0 to 2.0 mm. 

 deep, consisting of a tough basal felt overlaid by a floccose to somewhat 

 funiculose aerial mycelium composed of trailing and interlacing hyphae 

 and ropes of hyphae, growing margin Avhite (fig. 64 A), about 1.0 to 2.0 

 mm. wide, fimbriate, medium to heavy sporing throughout or in some 

 strains in marginal areas only, in dull gray shades near mineral gray 



Fig. 6-4. Penicillium tcrlikowskii Zaleski, NRRL 2U57. .1 and B, Two-weck-old 

 colonies on Czapek and malt agars. C, Low-power view of aerial growth, X 65. D, 

 Detail of penicilli, X 900. 



(Ridgway, PI. XLVII) to olive-gray (R., PI. LI); exudate fairly abundant, 

 mostly as small droplets adherent to the mycelium, dull amber; odor lack- 

 ing or indefinite; reverse in orange-red or red-violet to brown shades; 

 conidiophores abundantly produced, arising primarily as short branches 

 from aerial hyphae or ropes of hyphae (fig. 64C), commonly less than lOO/x 

 in length, occasionally longer by about 2.0m, with walls apparently smooth 

 but appearing granular within; penicilli monoverticillate, rarely branched, 



