Dec. 1902] Index to North A??ierican Mycology 
215 
Cercospora tageticola E. & E. n. sp., on leaves of Tagetes patula 
which it soon blackens and kills. Jour. Mycol. 8:72. June 
1902. 
Cercospora thermopsidis Earle n. sp., on Thermopsis arenaria. 
Bull. N. Y. Bot. Garden, 2:(348). 25 April 1902. 
Cercosporidium euphorbiae Earle, syn. of Passalora fasciculata , 
hirsutum. Jour. Mycol. 8:73. June 1902. 
Cercosporidum euphorbiae Earle, syn. of Passalora fasciculata, 
q. v. 
Cercosporidium helleri Earle, syn. of Passalora fasciculata, q. v. 
Cereus sp., host to Trematosphaeria cactorum Earle 11. sp. Bull. 
N. Y. Bot. Garden, 21(347). 25 April 1902. 
Cereus triangularis, host to Colletotrichum cerei Earle n. sp. 
Bull. N. Y. Bot. Garden, 2:(339). 25 April 1902. 
Chester, Frederick D. Sundry Notes on Plant Diseases. Del. 
Agr. Exp. Sta. Bull. 57:1-16. June 1902. 
Chestnut logs, decorticated, host to Polyporus castanophilus 
Atkinson n. sp. Jour. Mycol, 8:118. Oct. 1902. 
Chestnut, some diseases of. J. B. S. Norton. Rep. 4th An. 
Session Md. State Hort. Soc. 1901, 104-5. 
Chloris elegans H. B. K., host to Ustilago elegans Griffiths n. 
sp. Bull. Torr. Bot. Club, 29:142. Mar. 1902. 
Chorioactis Kupfer n. g. [Pezizaceae.] Bull. Torr. Bot. Club, 
29:142. Mar. 1902. 
Chorioactis geaster (Peck) Kupfer n. n. (Urnula geaster 
Peck). Bull. Torr. Bot. Club, 29:142. Mar. 1902. 
Ciboria americana Durand n. sp., on the inside of decaying in¬ 
volucres of Castanea vesca. Bull. Torr. Bot. Club, 29:461. 
July 1902. 
Ciboria sulfurella (E. & E.) Rehm. in litt. (Helotium sulfurellum 
E. & E.), on partly buried petioles of Fraxinus. Bull. 
Torr. Bot. Club, 29:461. July 1902. 
Cintractia axicola f. spicularum Juel, syn. of Cintractia utricu- 
licola , q. v. 
Cintractia axicola var. minor Clint, n. var.; host, Cyperus 
grayii. Jour. Mycol. 8:143. Oct. 1902. 
Cintractia eriocauli Mass., syn. of Ustilago eriocauli, q. v. 
