May 1903] Index to North American Mycology 
125 
Cirsium [Cnicus] undulatus, host to Puccinia inclusa Syd. n. 
sp. Monogr. Uredin. i 156. 30 June 1902. 
Cladonia formations, Some talus. Bruce Fink. [Bot. Gaz. 35: 
195-208. 5 full-page figures. March 1903. 
Cladonias, Notes on Certain. Bruce Fink and Mabel A. Hus¬ 
band. Bryologist, 6:21-7. PI. VII. March 1903. 
Clavaria bicolor Peck n. sp., under pine trees. N. Y. State 
Mus. Bull. 54:954. Nov. 1903. 
Clavaria densissima Peck n. sp., much-decayed vegetable matter 
in mixed woods. Bull Torr. Bot. Club, 30:98. Feb. 1903. 
Clavaria, some small, host to Sepedonium macrosporum Peck n. 
sp. Bull. Torr. Bot. Club, 30:99. Feb. 1903. 
Clements, Frederick E. Nova Ascomycetum Genera Species- 
que. Bull. Torr. Bot. Club, 30 :83~94. Feb. 1903. 
Clitocybe regularis Peck n. sp., among fallen leaves in woods. 
N. Y. State Mus. Bull. 54:948. Nov. 1902. 
Clitocybe subconcava Peck n. sp., pine woods. N. Y. State 
Mus. Bull. 54:948. Nov. 1902. 
Cnicus undulatus, see Cirsium undulatus. . . 
Colletotrichum rudbeckiae Peck n. sp., on dead stem of culti¬ 
vated Cone flower, Rudbeckia laciniata. N. Y. State Mus. 
Bull. 54:956. Nov. 1902. 
Collybia confluens campanulata Peck n. var., growing in circles 
under pine trees. N. Y. State Mus. Bull. 54 ^63. 
Nov. 1902. 
Coniothyrium helianthi E. & B. n. sp., on dead stems of Helian- 
thus annuus. Jour. Mycol. 8:175. Dec. 1902. 
Cortinarius, A Key to the North American Species of. — II. 
F. S. Earle. Torreya, 2:180-3. Dec. 1902. 
Cortinarius obliquus Peck n. sp., among fallen leaves in woods. 
N. Y. State Mus. Bull. 54:951. Nov. 1902. 
Cortinarius punctifolius Peck n. sp., woods at the base of Mos¬ 
cow Mountains (Idaho). Bull. Torr. Bot. Club, 30:96. 
Feb. 1903. 
Cortinarius submarginalis Peck n. sp., low moist places in 
woods. N. Y. State Mus. Bull. 54:95o. Nov. 1902. 
Cottonwood, see Populus deltoides . . . 
Croton fruticulosus, host to Cercospora crotonicola E. & B. n. 
sp. Jour. Mycol. 8:177. Dec. 1902. 
