FIG. 92. Gymnosporangium clavariaeforme. i, teleutospore 

 stage of the fungus parasitic on a juniper branch : the mycelium is 

 perennial in the branch, which becomes swollen or spindle- 

 shaped ; 2, two teleutospores supported on very long pendicles 

 or stalks : the red gelatinous masses produced on the juniper 

 branch consist entirely of teleutospores ; 3, teleutospores ger- 

 minating and producing secondary spores ; 4, aecidium stage on 

 a pear leaf ; 5, aecidiurn stage on branch, leaves, and fruit of haw- 

 thorn ; 6, aecidiospore germinating : the promycelium bears four 

 secondary spores near the tip. Figs, i, 4, and 5, nearly nat. 

 size ; the other highly mag. 



