52 Bulletin 313 



Glomerella rubicola (Ston.) S. & S. — On the petioles and on 

 canes of raspberry at point of union of petiole and cane. Causes a 

 spur blight and falling of the leaves. Acervuli most abundant at 

 point of union of petiole and cane; conidiospores (= Colletotrichum 

 ruhicolum E. & E., page 108)) oblong or elliptical, salmon-colored 

 to dark brown, 11-12 x 3-4 /*; perithecia in same location as acer- 

 vuli, with prominent neck, ascus long with short base, and slightly 

 pointed at tip; ascospores long, rounded at the ends, and slightly 

 curv^ed. 



2.39. Infected raspberry cane. 240. Bristles, 1/12. 241. Conidia, 1/12. 242. 

 Perithecia, 2/3, mostly from petioles. 243. Asci and ascospores, 1/12, from 

 two sources. 



Glomerella cingulata (Atk.) S. & S. — On Ficus elastica. 

 Causes a dying of the leaves {Glocosporium cingulatum, page 98), 

 acervuli black, 100-150 fx.; conidiophores numerous, crowded, non- 

 septate, hyaline; conidia, oblong to elliptical, straight or curved, 

 pointed at one end, 10-20 x 5-7 ix; perithecia in groups, dark 

 brown, flask-shaped, membranous, more or less hairy, 250-320 x 

 150 /^; asci clavate, 64 x 16 /t; ascospores elliptical, slightly curved, 

 20-28 X 5-7 Ai. 



244. Perithecia, 2/3. 245. Cross-section of acervulus, 2/3. 246. Conidio- 

 phores and conidia, 1/12. 247. Asci, 1/12. 248. Ascospores, 1/12. 



Glomerella cincta (B. & C.) S. & S. — On Calathea vitata. 

 Causes large, irregular ydllow to brown spots on the leaves {Colleto- 

 trichum cinctum, page 104). Acervuli erumpent; conidia elliptical; 

 12-18 X 3-5 /t; perithecia flask-shaped, membranous, in groups, 180- 

 280 fjL ; asci clavate, truncate or obtuse, 65-70 fx ; ascospores elliptical ; 

 usually curved, 16.5-24 x 3.3-6.6 /x. 



249. On infected leaf of Calathea 7'itata. 250. Conidia, 1/12. 251. Peri 

 thecia, 2/3, 1/6. 252. Asci, 1/12. 253. Ascospores, 1/12. 



