562 



DISEASES OF CULTIVATED PLANTS 



more; lobes undulate and contorted, smooth (not corrugated), 

 base firmer, plicate, pale pinkish-yellow ; spores subglobose, 

 apiculate, 7-9 /x. 



r Other species, as T. mesenterica, etc., sometimes occur on 

 living trees. 



FIG. \7\. Tremella frondosa. Half nat. size. (After A. Clarke.) 



Eoob rot of tobacco. Dr. W. W. Gilbert has just issued an 

 exhaustive account of Thielavia basicola, which he has proved 



