142 



A MANUAL OF THE PENICILLIA 



mouse or grayish to pale green; on corn meal agar sparse with few conidia; homo- 



thallic. 



"Conidia spherical to short elliptical, smooth, 1.5-2 x 2-3m; penicillus commonly 

 monoverticillate; sterigmata 2.5-3 x 7-10m, the spore-forming tube prominent; coni- 

 diophore short, slightly enlarged at the tip, side branches rather frequent, 3-4 x 



5-150m. 



"Ascocarps spherical, whitish to pale tan, non-ostiolate, superficial, growing 

 upon, and more or less surrounded by a loose weft or network of hyphal branches, 

 100-200^ in diameter, mostly about 150m; asci oval, pear-shaped to spherical, 7.5-12 x 



Fig. 38. Fenicillium brefeldianum Dodge, a-d, Various stages in the development 

 of the conidial stage; e and ei, Spherical and oval asci;/ and/i, Spherical and ellipti- 

 cal ascospores; g-i, Three types of ascospore germinition, g showing fragments of 

 the spore wall clinging to the germ vesicle as figured by Brefeld. (After Dodge, Mv- 

 cologia, 25. 1933.) 



10-15/x, 8-spored; ascospores globose to slightly elliptical, hyaline, finely echinulate, 

 2.5-3.8 x 3-4m. 



"Isolated from alimentary tract of human." 



Dodge's description and figure are inserted since these adequately present 

 the species in question. The type strain, received from Dodge in 1932, and 

 continued in artificial culture since that time has become predominantly 

 conidial, and upon many substrata now fails to develop any perithecia. 

 On vegetable extract media, including hay infusion, malt and corn-meal 

 agars, this strain, now maintained as NRRL 710, still produces small 

 rounded sclerotioid bodies, rarely more than 50/i in diameter, some of which 



