ASYMMETRICA-FASCICULATA 



527 



developing in conspicuous bundles or coremia up to 1 mm. or more in 

 length, often arising from well below the agar surface, or sometimes, in 

 some strains commonly extending out several millimeters beyond the edge 

 of the colony below the surface of the agar before assuming an erect or 

 ascending position (fig. 135C); penicilli asjonmetric, often comparatively 

 long, up to 50 to 70/i bearing tangled chains of conidia (fig. 133A) 100m or 



Fig. 135. Penicillium italicum Wehmer, NRRL 1293. A and B, Ten-day old 

 colonies on Czapek and malt agars, showing the restricted development character- 

 istic of the former and the broadly spreading colonies typical of the latter. C , Margin 

 of three-week old colony on Czapek agar showing characteristic coremia emerging 

 from the substratum and other bundles of hyphae that are still wholly submerged, 

 X 10. 



more in length, usually consisting of the main axis and 1 to 3 branches 

 variously produced at the upper nodes of the stalk, commonly measuring 

 15 to 2oM by 2.8 to 4.4ju but occasionally much longer and often rebranched ; 

 metulae born singly or in groups of 2 to 4 (fig. 133B), measuring 15 to 20/i 

 by 3.5 to 4.0m bi^it frequently larger or smaller, normally arising at different 

 levels in the penicillus; sterigmata relatively few in number, mostly in 

 clusters of 3 to 6, extremely variable in dimensions, commonly 8 to 12m by 

 about 3.0m but ranging from 2.0 to 5.0m in diameter and not infrequently 

 15/x long, with apices often merging almost imperceptibly into the chains 



