542 



THE FUNGI WHICH CAUSE PLANT DISEASE 



G. variabile Lau. grows on Ribes alpinum. G. curvatum 

 Oud. is described as a currant parasite. 

 G. malicorticis Cor.'^ 



Caulicolous; spots brownish, slightly depressed, irregular in 

 outline; acervuli minute, erumpent; conidia elliptic, curved, 



hyaline or greenish-tinged, 

 granular, 24 x 6 /*• 



On apples in northwestern 

 United States. Neofabrea has 

 been reported as genetically 

 connected.*^* 



G. cydonisB Mont, is re- 

 corded as a parasite on the 

 quince. 



G. musarum C. & M. is a 

 common wound parasite on 

 bananas. 



Acervuli innate; erumpent, 

 gregarious, rose-tinged; conidia 

 elongate-ellipsoid, ends 

 rounded, 10-12 x 4r-5 n, gran- 

 ular. A variety, importatum, 

 is also recognized. 

 G. diospyri E. & E. 

 Acervuli on yellowish dis- 

 colored areas, innate, erumpent, epiphyllous, on the leaf veins, mi- 

 nute, tuberculiform, pale; conidia ovate, granular, 6-14 x 5-7 fi. 

 On persimmon. 

 G. fragarise (Lib.) Mont. 



Spots indeterminate, red, epiphyllous; acervuli applanate, 

 rugulose, black; conidia cylindric, 4 to 5-guttulate. 

 On strawberries but not usually troublesome. 

 G. amygdalinum Brizi.^^^ occurs on the green fruit of the al- 

 mond in Italy. 

 G. venetum Speg."- ^^^^ 



Caulicolous or foliicolous; spots orbicular or elliptic, border 

 raised, darker, 2-3 nmi. in diameter; conidia oblong, elliptic, 

 5-7 X 3 /», in mass amber-colored. 



Fig. 367. — G. malicorticis; a, acervulua; 

 B, gemiinating spore. After Cordley. 



