THE FUNGI WHICH CAUSE PLANT DISEASE 525 



Phaeoseptoria Miyabe (p. 517) 



As in Septoria but with colored conidia. 

 P. oryzae Miy. is on rice in Japan. 



Rhabdospora Montaigne (p. 518) 



Pycnidia innate, erumpent, globose or depressed, brown or 

 black; conidia as in Septoria. 



Similar to Septoria, but on stems. 



R. coffeicola Del. and R. coffeae Del. are on coffee; 



R. theobromae A. & S. on cacao; 



R. ozycocci Sh. on cranberry. 



R. rubi E. Pycnidia black, subglobose, innate, erumpent, 

 scattered, 100-195 m," conidia linear, curved, 3 to 4-septate, 40- 

 45 X 3 M- On blackberry. 



Phleospora Wallroth (p. 518) 



Pycnidia innate, imperfectly developed, and chiefly formed of 

 modified host tissue; conidia elongate-fusoid, thick, 2 to many- 

 septate. About twenty-five species of leaf parasites. 



This genus closely approaches the Melanconiales in structure. 

 Several forms have been shown to be aUied to Mycosphserella, e. g., 

 P. ulmi to M. ulmi. 



P. mori (Lev.) Sacc. on Morus =Cylindrosporium mori=My- 

 cosphsella. 



P. moricola (Pass). Sacc. on Morus is a conidial form of 

 Septogloeimi mori. 



P. aceris Lib. is foimd on maple and sycamore leaves; 



P. ozycanthse Desm. on hawthorn leaves; 



P. caraganse Jacz. on Caragana.^^* 



Dilophospora Desmazieres (p. 518) 



Pycnidia globose, ostiolate, usually stromatic; conidia cylindric, 

 imicellular, with hair-like appendages at each end. 

 In part =Dilophia. 

 D. graminis Desm. =Dilophia graminis. See p. 257. 



