94 MICEOSCOPIC PUNGI. 



Thus it wiU be seen thatj inasmuch as we have 

 complex brands in which the number of cells are 

 considerably increased, so have we ''complex smuts'' 

 in which, instead of one cell, we have many. In 

 the last instance the two genera associated together 

 in this chapter agree. The spores in both are 

 distinctly ceUular, but in the last genus far more 

 opaque and consolidated than in the first. Whilst 

 it may be affirmed that the compound spores of 

 PolycysHs are nothing more than a number of 

 individual spores with a gregarious habit, such a 

 hypothesis can scarcely (as far as our individual 

 examinations extend) be made to inclade Tuber- 

 cimia. No doubt has yet been thrown on the 

 genuine character of either of these genera. No 

 Uredo or ^cid/mm, no Trichdbasis or Puccinia, has 

 been ascertained or suspected to appear as a prior 

 or subsequent form. In their supposed integrity 

 they offer an interesting study, and in their develop- 

 ment a good subject for investigation. 



