112 



HEMIBASID1I. 



"sporidia") of many species unite generally into an H-form (Figs. 97, 4; 

 100 h ; 101, 4). This union in pairs does not, however, take place with a view 



FIG. 100. TiUctia tritici : a an ear of Wheat in which all the grains are attacked by Stink- 

 brand ; b a blighted corn surrounded by the chaff ; c a blighted corn grown together witli a 

 stamen; d the same cutacross ; c a brand-spore; /. g, h germinating brand-spores ; i germi- 

 nating conidia ; j the mycelium ; fc-fc brand-spore-f'orming mycelium-threads, (c-li magni- 

 fied iOO times; i-k 300 times.) 



