500 



THE FUNGI WHICH CAUSE PLANT DISEASE 



Fuckelia Bonordin (p. 483) 



Stroma erumpent, globose-pulvinate, substipitate, dark without, 

 lighter within, with several angular pycnidial locules; conidia 

 elliptic. 



A single species F. ribis Bon. on cm-rants in Europe is a conidial 

 form of Cenangium vitesia. See p.. 151. 



Ceuthospora Grevielle (p. 483) 



Stroma coalescing, erumpent, cushion-shaped, leathery, many- 

 chambered, all chambers opening by a common pore; conidia 

 elongate cylindric, mostly straight. 



Some twenty-five species, chiefly saprophjrtes. 



Fig. 346.— C. cattleyiE, a 

 p y c n i d i u m. After 

 Delacroix. 



FiQ. 347. — ^Plagiorhabdus 

 ozycocci on cranbeny. 

 After Shear. 



C. coffeicola Del. is of questionable parasitism on coffee; 

 C.'Cattleyse Sacc. & Syd. on orchids. 



Plagiorhabdus ozycocci Shear has been reported on cran- 

 berry.'" 



Sphserioidacese — ^Phseosporse (p. 480) 

 Conidia 1-celled, dark, globose, ovoid or oblong. 



Eet to Genera of Sphseropsioidaces — Phasosporte 



Pycnidia separate 

 Pycnidia without mycelium or subicle 

 Pycnidia smooth, not hairy 

 Conidia in chains, globose 1. Sirothecium. 



