PENlcil.l.ir.M COMMUNE. 



57 



i l I li i; \1 DATA 



Color green, becoming brown when old; reverse crea r white; color in media, 



none. 



i >dor, strong, " moldy." 



Fifteen percent gelatin in water, g 1 groM th; liquefaction, nunc in 15 days, slow or 



partial in older cultures; litmus reaction, Blowly alkaline. Potato agar and bean agar, 

 characteristic Potato plugs, characteristic. Raulin'a fluid, characteristic, with 

 odor "moldy." Cohn's solution, small colonies, trace of pink below. 



Fig. 19. PenidHium commune: a, b, c. d, e, conidial fructification, branching, and production ofconidia 

 (X 900); /. <j, li, j. k, I, sketches <>f frucl iflcal ions in \ ai lous stages I • 1 10). 



Synthetic fluid I Dox'e . carbon supplied as: Cane sugar, typical culture, transpired 

 drops crystal. Lactose 3 per cent, typical culture. Lactic acid O.i) per < •< -nt, good 

 growth. Levulose 3 percent, good culture, strong odor. Galactose 3 percent, good 

 culture, strong odor, alkaline reaction. Glycerin 3 per cent, typical, Btrong odor. 

 Butter Eat, typical growth. 



Milk, good typical colony; curdling (<>.•_'•"> per cent calcium chlorid added i in 1 week; 

 digestion, slow; color in milk, none. 



At 37° C, no growth, grew upon cooling; chock at 20° •'.. rich growth. 



