MOLDS 



SI 



(conidiophores) are mostly erect, arising either from submerged hyphse, 

 or as branches of aerial hyphse, septate, usually branched only in the 

 fruiting portion. Conidial fructifications consist of more or less com- 



Fig. 33. — Penicillium expansum, Link, a, h, f, Brandling and arrangement of 

 branches of conidial fructification (X900); c, d, e, conidiiferous cells and conidial 

 chains (X900); g, h,j, k, I, sketches of fructifications (X140); m, n, 0, germination 

 of conidia (X900); r, s, sketches from photographs showing in s loose aggregations 

 of conidiphores beginning to develop into zonately arranged coremia, in r a 

 coremium i mm. in height. {From Bui. 118, Bureau of Animal Industry, U. S. 

 Dept. Agriculture.) 



plex systems of branches and branchlets, the ultimate fertile cells each 

 producing a chain of conidia (Fig. 33). The whole system is usually 

 grouped near the end of the conidiophore, giving the appearance of 



