l'KMt m.i.h.m i;n;ri.(isr.M. 



61 



10-1.") ] .%• 2.5/i, bearing \ erticils of conidiiferoue cells, of branchlets, or of conidiiferoue 

 cells and branchlets together; conidiiferous cells 9 L2 by 2/x, acuminate, bearing I 

 divergenl chains of conidia; conidia 3.4 3.8 by 2.5 :'>,», elliptical, green, mostly with 

 swelling at one end, verruculose when ripe, sw tiling to •">,"- and germinating by one 

 or two i ii 1 »• — : colonies do not or only partially liquefj gelatin. 



Common in cultures, Storrs, Conn. Characterized by its verrucose spores and the 

 brilliant color of the mycelium viewed from below. 



■ ; l Tl RAX DATA. 



Color green or yellowish green; reverse yellow t" orange or reddish orange; color 

 in media, none. 



Fifteen per cenl gelatin in water, bIow development; Liquefaction, none or slight 

 in old colonies; litmus read inn neutral. Potato agar, good growth, alkaline. Bean 

 agar • 5 per cenl cane BUgar, rich heavy growth producing conidia in heavy dark- 

 green masses, easily broken oft by shaking the tube. Potato plugs, green, reverse 

 bright orange. 



Fig. 21. Pi » am: a,b, branching of conidiophore(Xl, 600); c,d,c, conidiiferous cells (basidia) 



and conidia I ■ 1,600); f, fully ripe conidium, showing del rwalls(x 1,600); g,h,j, swell- 



ing and germination of conid > 600); I, m, diagrams of conidial fructifications (X 260 



Synthetic fluid (Dox'e . carbon supplied as: Cane sugar, growth in concentration 

 up to 60 per cent, acid. Lactose, 10 per cent, slight growth. Levulose, Pair growth, 

 acid reaction; galactose, good growth; glycerin, slow growth; butterfat, slo^ ly typical 

 colony, yellow belo? : fluid, slightly yellowish. 



Milk, growth typical, reverse yellow to orange or reddish orange; curdling (0.25 

 per '''Hi calcium chlorid added) in 9 days; digestion bIow or .-li,L r lii; color, none in 

 milk. 



At37°C, no growth, grew when cooled; check at 20° C, typical. 



PENICILLIUM CITRINUM n. sp. 



Latin diagnosis. Coloniis in gelatins vel agaro Solani tuberosi aul pha eoli cultis, 

 aeruginoso-viridibus, demum fuligineis; fructibue \ iridibus usque ad marginem j^« •.- 1 i - , 



i. e. margine sterile angustissima; coloniis in gelatina rotundis, parvis, cito liqUefa- 



