PLATE TWO. 



Fig. 10. Suversia Rossii R. Br., from Longs Peak (12,500 feet altitude); natural size. 



11. Saxijraga broachialis L., from Grays Peak (12,500 feet altitude); natural size. 



12. Same species; a leaf enlarged. 



13. Saxijraga cernua L., from Pikes Peak (14,000 feet altitude); natural size. 



14. Same species; base of the stem with the bulblets; enlarged. 



15. Same species; a bulblet; enlarged. 



l(i. Same species; inner leaves of the bulblet; enlarged. 



17. Saxifrage chrysanlha Gr., from Grays Peak (12,500 feet altitude); natural size. 



18. Trifolium nanum Torr., from Grays Peak (12,500 feet altitude); natural size. 



19. Same species; the inflorescence; natural size. 



