626 THE FUNGI WHICH CAUSE PLANT DISEASE 



On various species of Prunus this causes leaf holes. 

 It is reported as especially serious on the almond.'** 

 C. bolleana (Thiim.) Sacc. 



Hjrpophyllous, spots subfuscous to olivaceous; conidiophores 

 fasciculate, filiform, 50-80 x 5-6 n, non-septate, fuscous; conidia 

 terete, fusoid, 35-40 x 7-8 ii, apically obtuse, somewhat con- 

 stricted, 1 to 5-septate, olive-green. 

 On figs causing leaf spotting.*** 

 C. viticola (Ces.) Sacc. 



Spots amphigenous, subcircular to irregular, 2-10 mm. in 

 diameter, ochraceous, emarginate; conidiophores erect, densely 

 fasciculate, filiform, septate, 50-200 x 4-5 fi, 

 straight, somewhat denticulate, ochraceous; 

 conidia elongate-obclavate, somewhat at- 

 tenuate, 3 to 4-septate, 50-70 x 7-8 n, olive- 

 brown.^'' 



It is apparently an unimportant parasite 

 on grape leaves. 

 C. rubi Sacc. is on Rubus; 

 C. fumosa Pass, on leaves of Citrus fruits. 

 C. moricola Cke. is common on mulberry; 

 C. musae Zimm. on banana leaves in 

 Java. 

 ^ ,„„ „ C. roesleri Sacc. occurs in Europe, causing 



Fig. 423.— C. concors. , . . . ^ ,, 



6. Hyphffi emerging late mjury to the grape. 



tS'atourhti^ C. angulata Wint."* 



Pomero'°°*^ """^ Spots roundish, angulate, whitish to cine- 

 reous, margined, 1-3 mm. in diameter, often 

 confluent; conidiophores hypophyllous, fasciculate, erect, straight 

 or only slightly flexuose, simple, brownish, few septate, 78-105 x 

 5 n; conidia filiform-obclavate, long attenuate, hyaline, 7 to 16- 

 septate, 80-170 x 3.5 /*. 



On the currant. 



C. oryzse Miy.*® is on rice in Japan. 



C. concors (Casp.) Sacc.*'*' **^ 



Spots amphigenous, pale above, whitish beneath, rounded, in- 

 definite; conidiophores fasciculate or single from the stomata, 

 erect, brown, septate, simple, 40-80 n high; conidia single. 



