academy or sciences.] ENUMERATION OF SPECIES. 11 



No. 3.] 



BORAGINACEAE. 



Eritrichium argenteum White, (pi. 4, fig. 30). Not infrequent in dry ground, bowlder fields, etc.: Pikes Peak, 13,000 



feet; Longs Peak; Grays Peak, 12,500 feet; Mount Elbert, 12,000 feet. 

 Mertensia ciliata Don. Rare on grassy slopes of Mount Massive, 12,000 feet. 



M. lonchophylla Grne. In dense mats, James Peak, 13,000 feet; Grays Peak; bowlder field on Longs Peak, 12,000 feet. 

 M. alpina Don (pi. 5, figs. 39—40). Abundant in wet, mossy ground on Pikes Peak, 13,000 feet. 



SCROPHDLAR1ACEAE. 



Pentstemon confertus Dougl. var. coeruleo-purpureus Gr. On grassy slopes of Mount Massive, 11,500 feet. 

 P. glaucus Grab., var. stenosepalus Gr. Seldom Alpine: Grays Peak, 12,000 feet; Mount Kelso, 11,500 feet. 

 Chionophila Jamesii Benth. (pi. 5, figs. 32-35). Abundant in bowlder fields on Longs Peak, 12,000 to 12,500 feet; at 



Bear Lake in Thompsons Canyon, 10,700 feet. 

 Synthyris alpina Gr. (pi. 5, figs. 36-38). Not uncommon in bowlder fields on Longs Peak, 12,000 to 12,500 feet; dry 



mountain elopes of Grays Peak, 13,000 feet. 

 Veronica alpina L. Frequent on grassy slopes: Grays Peak; Mount Massive, 12,000 feet; at Black Lake in Thompsons 



Canyon on Longs Peak, 10,300 feet. 

 Castilleja breviflora Gr. On grassy slopes: James Peak, 13,000 feet. 

 C. septentrionalis Lindl. Abundant on grassy slopes: James Peak, 13,000 feet; bowlder fields on Longs Peak, 12,500 



feet; Mount Massive, 12,000 feet; Thompsons Canyon on Longs Peak, 10,500 feet. 

 Pedicularis Groenlandica Retz. Rare above timber line: Grassy slopes, Mount Massive, 12,000 feet; headwaters of 



Clear Creek, near the snow banks, 11,500 feet; Thompsons Canyon, 10,500 feet. 

 P. scopulorum Gr. Very rare: In grassy places along brooks, Grays Peak, 12,000 feet. 

 P. Parryi Gr. Seldom Alpine: In thickets of Salix glaucops, Mount Kelso 11,500 feet; Thompsons Canyon on Longs 



Peak, 10,500 feet. 



CAMPANULACEAE. 



Campanula rotundifolia L. Frequent among rocks on Mount Massive, 12,000 feet; in thickets of Salix glaucops, Grays 



Peak, 11,500 feet. 

 C. uniflora L. Rare on grassy slopes: James Peak, 13,000 feet; Grays Peak, 12,500 feet. 



VALERJANACEAE. 



Valeriana acutiloba Rydbg. Rare: Forming dense mats on grassy slopes of Mount Kelso, 12,000 feet. 



COMPOSITAE. 



Chrysopsis villosa Nutt. Very seldom Alpine: Dry slopes of Mount Massive, 11,500 feet. 



Machaeranthera'Pattersonii Grne. Rare on grassy slopes of Mount Kelso, 12,000 feet. 



Stenotus pygmaeus T. et Gr. James Peak, 13,000 feet; on grassy slopes of Mount Massive, 12,000 feet. 



Erigeron salsuginosus Gr. Very rare; in dense clumps near the snow banks on Mount Massive, 12,000 feet. 



E. pinnatisectus (Gr.) A. Nels. (pi. 5, fig. 31). Infrequent: James Peak, 13,000 feet; on grassy slopes, Mount Massive, 



12,000 feet. 

 E. uniflorus L. Not uncommon: James Peak, 13,000 feet; grassy slopes on Grays Peak, 12,500 feet; Mount Kelso, 



12,000 feet; Mount Massive, 12,000 feet; near the snow banks, headwaters of Clear Creek, 11,500 feet; Thompsons 



Canyon on Longs Peak, 10,500 feet. 

 Antennaria alpina Gartn. Frequent: James Peak, 13,000 feet; on dry slopes, Mount Massive; Mount Kelso, 12,000 



feet; on rocks above the snow banks, headwaters of Clear Creek, 11,500 feet; near Black Lake in Thompsons Canyon 



on Longs Peak, 10,300 feet. 

 A. rosea (Nutt.) Grne. Very seldom Alpine: Mount Massive, 12,000 feet. 

 Actinella grandiflora T. et Gr. Frequent: James Peak, 13,000 feet; on grassy slopes near snow banks, Mount Elbert; 



Mount Massive ; Mount Kelso; Grays Peak, 12,000 feet. 

 A. acaulis Nutt. Rare: James Peak, 13,000 feet. 

 Achillea Millefolium L. Seldom Alpine: On dry, stony slopes of Mount Elbert; Mount Kelso; Mount Massive, 12,000 



feet. 

 Artemisia Norvegica Fr. Abundant on James Peak, 13,000 feet; on grassy elopes of Mount Kelso, 12,000 feet. 

 A. borealis Pall. Very rare: Dry slopes of Mount Massive, 12,000 feet. 

 A. scopulorum Gr. (pi. 3, figs. 21). Not uncommon; James Peak, 13,000 feet; on dry slopes, Mount Elbert; Mount 



Kelso, 12,000 feet; headwaters of Clear Creek, 11,500 feet; covering large areas, Thompsons Canyon on Longs 



Peak, 10,500 feet. 

 Arnica alpina L. var. Rare: In thickets of Salix glaucops near Steven's mine, 11,500 feet. 

 Senecio crassulus Gr. Very rare; grassy slopes of Mount Kelso, 12,000 feet. 



S. dimorphophyllus Grne. (pi. 4, fig. 27). Abundant near the snow banks on Mount Massive, 12,000 feet. 

 S. Fremontii Gr. Rare: In dry soil on Grays Peak, 12,500 feet. 

 S. blitoides Grne. (pi. 4, fig. 26). Near the snow banks on Mount Elbert, 12,000 feet. 



