250 THE FUNGI WHICH CAUSE PLANT DISEASE 



M. pinodes Berk & Blox. 



Perithecia numerous, 100-140 fi; asci oblong-cylindric, 58-62 x 

 12 /i; spores 2-rowed, 14-16 x 5. 



Pycnidia (=Septoria pisi), with large ostiole; spores 35-45 x 3- 

 3.5 M. 1 to 3-septate. On pea stem and leaves.'"^' "" 



M. primulse is on primrose; 



M. tamarindi on tamarinds in Africa. 



M. cinxia Sacc. is on lilies, causing leaf blight; 



M. fusca Pass, on the gladiolus; 



M. coffeicola on coffee in Mexico. 



M. shiraina Miy. and M. hondai Miy. are on rice. 



M. convezula (Sch.) Rand. 



Perithecia hypophyllous, gregarious or scattered, finally erum- 

 pent, 100-200 /* in diameter, papillate at maturity; no paraphyses; 

 asci fasciculate, 54-100 x 9-11 fi, 8-spored; spores allantoid, 

 1-septate, hyaline, 13-27 x 3.5-5.5 m- 



Forming a leaf spot on pecans.'" 



An undetermined species of Mycosphaerella has been reported 

 on the grape by Rathay."^' 



Many other species are known on ferns, cereals, lilies, and va- 

 rious trees and herbs. 



In the genus Pharcidia. P. orzae Miy. is on rice.'"* 



In Sphserulina the species Sphserulina taxi Mass. is injurious on 

 yew leaves. 



Pleosphserulina Passer (p. 236) 



Perithecia subepidermal, erumpent, small, globoid or lenticular, 

 black; asci 8-spored, clavate; spores muriform, hyaline; paraphyses 

 none. 



P. briosiana Pol. causes a leaf disease of alfalfa in Italy. 



Pleosporacese (p. 223) 



Perithecia sunken, at length erumpent, or from the first more 

 or less free, membranous or coriaceous, usually papillate; asci 

 clavate-cylindric, double-walled; spores variable, but usually 

 colored, oblong, fusoid or elliptic; paraphyses present. 



An order of some nineteen hundred species most of which are 

 saprophs^tes, although several are parasites, some of considerable 

 importance. 



