164 



A MANUAL OF THE PENICILLIA 



diameter; penicilli variable, mostly strictly monoverticillate, consisting of 

 compact verticils of sterigmata bearing tangled or loosely parallel chains 

 of conidia up to 100m in length, occasional penicilli once or twice branched 

 and producing two or more clusters of sterigmata (fig. 43C), conidiophores 

 mostly 25 to 75m, rarely more than 100m in length by 2.5 to 3.0 or 3.5m in 



D 



Vic. 16. I'tnLciLliuin la/jidcsunt Raper uud l^cnnell, NltiiL Tib. .1 a,ud B, Two- 

 week-old colonies on Czapek and malt agars. C, Sclerotia as seen in corn meal agar, 

 X 6.5. D, Detail of penicillus, X 900. 



diameter, with walls smooth, commonly septate; branches, when present, 

 mostly 10 to 20m by 2.5 to 3.0m, more or less divergent; sterigmata ranging 

 from 3 or 4 up to 7 or 8 in the verticil, mostly 6.0 to 7.5m by about 2.0m with 

 conidium-bearing tips definitely narrowed; conidia at first definitely ellip- 

 tical, usually remaining so and ranging from 2.5 to 3.0m by 2.0 to 2.5m, oc- 

 casionally subglobose 2.0 to 2.5m in diameter, with walls smooth and com- 

 paratively heavy (figs. 43C and 46D). 



