PENICILLIUM PINOPHILUM. 



37 



with granules, potato becoming purple. Uauliu's fluid, slofl development. Cohn'e 

 solul ion, germinal ion onlj - 



Synthetic fluid I Dox'e . i arbon supplied as Cane Bugar LO per cenl in agar, rich 

 growth, deep red medium. Lactose 3 pei cent, very little growth, verj pale purplish. 

 Lactir acid 0.9 percent, medium growth, slowlj producing purple in medium. Levu- 

 lose 3 per cent, small colonies, fluid pale red. Galactose 3 per cent, small colonies, 

 acid reaction. Glycerin 3 per cent, no growth. Alcohol 3 to 5 per cenl in agar, u r « » ><1 

 growth bul Blow, medium becoming purple. Potato starch :'. per cent, good growth, 

 abundanl purple in medium. Tartaric acid, do growth. Butterfat, very slow growth 

 with purple color in fluid. 



Milk. Blow development; curdling (0.25 per cenl calcium chlorid added) L3 days; 

 digestion slow and only partial; color in milk, shades of purple according to progress, 

 deepesl under colony. 



(nuked apple, feeble growth. 



Grew equally well at 37°C.and 20° C. 



>v 



> ;■ •'■ '■' 



; 



Fig. 5.- /'< nicillium purpurogt u I ». Btoll: a, b, c, conidial fructification showing branching and arrange- 

 ment i form with partial secondary verticil; d, e,f, g, conidiiferous cells and conidia i 1,400); 

 it, Z, 77i, sketches of whole fructifications (X 140). 



PENICILLIUM PINOPHILUM Hedgcock momen novum i. 



Syn. Penidllium annum Corda, emended Bedgcock, Mo. Bot. Gard. Rept. 17. 

 pp. L05 l<>7. pi. ii. figs. I 3. 

 Nol /'. """ a in Corda, Prachtflora, p. 38, t. XVIII. 



Colonies on potato or bean agar and milk sugar gelatin, from green on agar through 

 shades of yellow -green to bright yellow and orange on media containing starch and cane 

 sugar. Superficial hyphae studded with yellow granules upon acidfied media. Reverse 

 of colony and substratum (upon these media) colored deep rich red. Surface growth 

 partly of simple conidiophores, partly aerial hyphae, and ropes of hyphae (which rarely 

 become vertical coremia) bearing conidiophores as lateral branches. Conidiophores 

 hiu 200/!. Cniiidial fructifications up to L20/< in Length, consisting of single verticils 

 of branches 10 L6by2 2.5ju, bearing whorls of conidiiferous cells L3 L5by2 2. 5/i taper- 

 ing into acuminate sterigmata bearing conidial chains which are parallel bul do not 

 form a column. Conidia elliptical, 3 3.6 by 2/t, smooth, pale green <>r yellowish green. 



