THE FUNGI WHICH CAUSE PLANT DISEASE 629 



C. flagelliformis E. &H. 



Spots amphigenous, indefinite, yellowish; conidia very long, 

 curved, tapering. 



The cause of spinach leaf spots. 



C. citnillina Cke. 



Epiphyllous, spots orbicular, 2-4 mm. in diameter, white with a 

 purple margin; conidiophores elongate, terete, pale olivaceous, 

 conidia very long, attenuate above, few-septate, hyalme, 120-140 



The gause of leaf spots on watermelon.'^' 



C. cucurbitae E. & E." 



Spots amphigenous, roimded, subochraceous, becoming thin and 

 white, 1 to 4 mm. in diameter, border slightly raised; conidiophores 

 tufted, olive-brown, 70-80 x 4 ju, continuous, subgeniculate 

 above, apically obtuse; conidia linear clavate, 100-120 x 3-4 /i, 

 hyaline, septate. 



On cucumbers in America, associated with Phyllosticta cu- 

 curbitacearum. 



C. melonis Cke. grows on cucumbers and melons in England 

 and New Zealand. What is probably the same fungus has been 

 set up by Giissow ^^* as a new genus Corynespora. 



C. armoracise Sacc. 



Spots amphigenous, pale; conidiophores short, simple, 30-^0 

 X 5 ft; conidia rod-shaped, cuspidate, 100-120 x 6 /i, hyaline, 

 multiseptate. 



On horseradish. 



C. blozami B. & Br. occurs on Brassica. 



C. personata (B. & C.) E. 



Spots hypophyllous, small, brown, orbicular, 2-4 mm. or more 

 in diameter; conidiophores densely tufted, short, brown, con- 

 tinuous; conidia clavate, pale-brown, about 3 to 4-septate, SO- 

 SO X 5-6 /I. 



On the peanut in the Southern United States and West Indies.'*' 



C. omenta Sacc. 



Spots amphigenous, indefinite, reddish; conidiophores, subfasci- 

 culate, simple, subdenticulate, Hght olivaceous; conidia obclavate, 

 curved, 60-80 x 4 /i, subacute, 6 to 7-septate, hyaline or oUva- 

 ceous. 



