T. Holm — Studies in the Gyperacem. 21 



G. alpina Sw. var. Stevenii Holm. Not uncommon in the Aspen 

 zone : Middle Park (Beardslee) ; Georgetown (P. A. Ryd- 

 berg) ; Silverplume, alt. 9,500 ft. ; swamps on Lamb's Ranch 

 near Long's Peak, alt. 8,600 ft. ; abundant in the Spruce 

 zone : between Graymont and Steven's Mine, very seldom 

 alpine: Gray's Peak, alt. 12,000 ft, associated with Juncus 

 triglumis and Garex misandra (the author). 



G. melanocephcda Turcz. 39°-4l° (Hall and Harbour, C. C. 

 Parry) ; Upper La Plata, alt. 10,000 ft. (Baker, Earle and 

 Tracy) ; Chamber's Lake (C. S. Crandall) ; Silverplume (P. 

 A. Rydberg) ; mts. about Ouray (C. S. Crandall) ; very 

 abundant in thickets of Salix on Mt. Elbert, alt. 11,500 ft.; 

 on Mt. Kelso at 11,500 ft. and headwaters of Clear Creek, alt. 

 11,000 ft. (the author). 



G. atrata L. 39°-41° (Hall and Harbour, C. C. Parry) ; Long's 

 Peak, alt. 12,500 ft. and Gray's Peak, alt. 12,500 ft. (the 

 author). 



G. chalciolep>is Holm. Little Kate Mine, La Plata Mts., alt. 

 11,000 ft. and Mt. Hesperus, alt. 11,500 ft. (Baker, Earle and 

 Tracy) ; along brooks at Silverplume (P. A. Rydberg) ; 

 Cameron Pass, timber line (C. S. Crandall) ; mts. near Pagosa 

 Peak, on hillsides, alt. 12,000 ft. (C. F. Baker) ; James' Peak, 

 alt. 13,000 ft.. Mt. Massive, alt. 12,000 ft., Mt. Elbert, alt. 

 12,000 ft., Mt.'Kelso, alt. 12,000 ft.. Long's Peak, alt. 12,000 

 ft., Thompson's Canyon on Long's Peak, alf. 10,500 ft. and 

 Gray's Peak, alt. 12,000 ft. (the author). 



G, hella Bail. 39°-tl ° (Hall and Harbour, C. C. Parry) ; Mt. Hes- 

 perus, near Bob Ci'eek and Upper La Plata, alt. 10,000 ft. 

 (Baker, Earle and Tracy). 



G. Parry ana Dew. 39°-41° (Hall and Harbour, C. C. Parry) ; 

 swamps at Twin Lakes, alt. 9,265 ft. (the author). 



C. Buxbaumii Wahl. 39''-41° (Hall and Harbour, C. C. Parry). 



Microrhynchm L)rej. 



G. vulgaris Fr. ; in moist ground, associated with Platanthera and 

 Pyrola, in the Aspen zone near Silverplume, alt. 9,500 ft. 

 (the author). 



G. rigida Good, near the snowbanks, headwaters of Clear Creek, 

 alt. 11,500 ft. (the author). 



G. scopidorum Holm. Marshall Pass, alt. 12,000 ft., abundant in 

 wet places, covering extensive areas (C. F. Baker) ; mts. of 

 Estes Park (G. E. Osterhout). Silverplume (P. A. Ryd- 

 berg) ; abundant in swamps in the Spruce zone, Mt. Massive, 

 alt. 11,000 ft., headwaters of Clear Creek, alt. 11,000 ft., 

 common in swamps from Steven's Mine to Mt. Kelso and 

 Gray's Peak, alt. 12,000 ft. (the author). 



G, chimaphila Holm. Along brooks, associated with Juncus 

 biglumis, J. triglumis and J. castaneus on Long's Peak, alt. 

 12,000 ft. (the author). 



