MONOVERTICILLATA 



235 



rowed in a predominantly radial pattern, comparatively deep, up to 1.0 

 to 1.5 mm., with margin fairly abrupt, showing some funiculose arrange- 

 ment of vegetative hyphae (fig. 65A), with mycelium light gray to light 

 vinaceous gray in age, generally light sporing throughout and heavier 

 sporing in marginal areas of crowded colonies, pale gray-green approxi- 



9 



Fig. 65. A and B, Penicillium vinaceum Gilman and Abbott, NRRL 739, on Czapek 

 and steep agars at two weeks; note the abundant vinaceous exudate on steep. C and 

 D, P. phoeniceiim v. Beyma, NRRL 2070, on Czapek and steep agars. Both species 

 are strong pigment producers and quickly discolor the substratum, particularly when 

 grown on steep agar. 



mating light mineral to mineral gray (Ridgway PL XLVII); exudate 

 abundantly produced, often collecting in large drops, in pale to deep 

 vinaceous shades, usually characterizing the colony and producing the 

 predominant color effect; odor slight or lacking; reverse in vinaceous shades 

 (R., PL XXVII) through hellebore red to deep hellebore red (R., PL 

 XXXVIII) to deep red-violet shades near violet caraiine to burnt lake 



