252 



Mycologia 



of this plant to C. velutipes is close, and dried specimens of the two 

 species are sometimes hard to distinguish. 



55. Collybia maculata Alb. & Schw. .On humus. Tolland. Alt. 9,000 ic. 



July 27, 1914. No. 1991. 



56. Coprinus atramentarius (Bull.) Fr. On ground around stump. Tolland. 



Alt. 9,000 ft. July 3, 1914- No. 1277, 



57. Coprinus micaceus (Bull.) Fr. On ground. Boulder. Alt. 7,000 ft. 



June 23, 19 14. Collected by E, Bethel. No. 2848. Also collected by 

 Dr. Ramaley at Tolland. June 26, 191 1. 



A third species of Coprinus was collected rather abundantly at 

 Denver by Prof. Bethel, on stems of Agropyron, in June, 1914. The 

 identity of the species has not been established. 



58. Cortinarius^ argentatus Fr. ? On ground in coniferous forests. South 



Boulder Canon, Alt. 9,000 ft. July 8, 1914. No. 1885. 



59. Cortinarius cinnamomeus Fr. On ground in coniferous forests, aspen 



thickets, and under willows. Tolland. Alt. 9,000 ft. July 18, 1913; 

 July 14, 1914. Nos. 1324, 1911, 1912. 

 An abundant species, and edible. 



60. Cortinarius concinnus P. Karst. On grassy ground among willows. 



Boulder Park. Alt. 9,000 ft. July 14, 22, 1914. Nos. 1913, 1965. 



Abundant in 19 14. Characterized by the color, which is brick-red, 

 ferruginous, or almost blood-red, 



61. Cortinarius corrosus Fr. ? On the ground in coniferous forests. Jennie 



Creek. Alt. 9,000 ft. July 20, 27, 1914. Nos. 1943, 1998. 



62. Cortinarius decoloratus Fr. On the ground in coniferous forests. Tol- 



land. Alt. 9,000 ft. July 28, 1913. No. 1377. 



63. Cortinarius glandicolor Fr. On the ground in coniferous forest. Jennie 



Creek. Alt. 9,000 ft. July 27, 1914. No. 19190. 



64. Cortinarius herepeticus Fr. ? On the ground in coniferous forests. Tol- 



land. Alt. 9,000 ft. July 28, 1913- No. 1378. 



65. Cortinarius malicorius Fr. On the ground in coniferous forests. Jennie 



Creek. Alt. 9,000 ft. June 17, 1914. No. 1764. 



66. Cortinarius muciftuus Fr. On the ground in aspen thickets. Tolland. 



Alt. 9,000 ft. July 25, August 3, 1914. Nos. 1982, 2096. 



67. Cortinarius psammocephalus Fr. On the ground under pines. Tolland. 



Alt. 9,000 ft. Aug. 3, 1914. No. 2092. 



68. Cortinarius rusticus P. Karst. On the ground in coniferous forest. 



Jennie Creek. Alt. 9,000 ft. July 20, 1914. No. 195 1. 



In point of numbers this seems to be the largest genus in the 

 Colorado fungous flora. In addition to the collections cited above 

 there are about 25 collections of unidentified material in the writer's 

 herbarium. 



69. Flammula penetrans Fr. On rotten coniferous wood in pine woods. 



Tolland. Alt. 9,000 ft. July 29, 19 14. No. 2070. 



70. Flammula spumosa Fr. Usually on buried wood, especially in old cor- 



duroy roads. Also on logs. Golden, South Boulder Canon, Tolland. 

 Alt. 7,000-10,000 ft. June 15, 19, 21, 28, 1913; June 14, 25, July 2, 5, 



5 All determinations in this genus were made by Dr. C, H, Kauffman. 



m 



