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

 brand ; b a blighted corn surrounded by the chnff ; c a blighted corn grown together with a 

 stamen; d the same cutacross ; e a brand-spore ; /, g, 7i germinating brand-spores ; i germi- 

 nating conidia ; j the mycelium ; 7c-fc brand-spore-l'orming mycelium-threads, (c-h magni- 

 fied 400 times ; i-fc 300 times.) 



