MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 33 1 



*Cryptanthe leiocarpa (F. & M.) Greene, Pittonia, i : 117 ; Echino- 



spermiim leiocarpum F. & M. Ind. Sem. Petr. 2 : 36 ; Eritri- 



chium lewcarptwi^'^?ds. King's Exp. 5: 244 [83^. Fl. 2': 194; 



Bot. Cal. I : 527] ; Kryintzkia leiocarpa F. & M. Ind. Sem. Petr. 



7:52 [Syn. Fl. 2':425]. 



Resembling the preceding, but the thicker-walled nutlets are 

 attached by their whole length to the subulate gynobase. Dry soil, 

 up to an altitude of 2500 m. 



Montana: Helena, 1891, F. D. Kelsey. 



Yellowstone Park: Electric Peak, Aug. 18, 1897, Rydhcrg & 

 Bessey, 4.888 ; Yellowstone River, 1884, Tzveedy, iig^. 



Cryptanthe Watsonii (Gray) Greene, Pittonia, i: 120; KrynitzMa 



Watsonii Gray, Proc. Am. Acad. 20: 271 [Syn. Fl. 2M 426; 



Man. R. M. 261]. 



On hillsides, at an altitude of 1500-2500 m. 



Montana: Gallatin Co., 1886, F. Tweedy, i ly^ ; Tiger Butte, 

 1886, R. S. Williams. 



Yellowstone Park: 1884, F. Tzvecdy, igj, in part. 



* Cryptanthe Torreyi (Gray) ; EritricJiium Torreyi Gray, Proc. Am. 



Acad. 10 : 57 [Syn. Fl. 2' : 192] ; Krynitzkia Torreyajia Gray, 



Proc. Am. Acad. 20: 271 [Syn. Fl. 2': 425] ; Cryptant/ie Tor- 



reyana Greene, Pittonia, i : 118. 



Like C. Watsonii, in that the groove of the nutlet is divergently 

 forked at the base, but the leaves are broad, and the ovate acute 

 nutlets are attached nearly up to the middle of the g3mobase. Dry 

 hills, at an altitude of 2000 m. 



Montana: Indian Creek, July 21, 1897, Rydberg d- Bessevy 

 4885. 



* Cryptanthe calycosa (Gray) ; Krynitzkia Torre y ana calycosa Gray, 



Proc. Am. Acad. 20: 271 [Syn. Fl. 2': 426]. 



Like C. Torreyi, but the sepals are elongated in fruit and rigid 

 with a strong midrib. Dr}^ soil, up to an altitude of 2500 m. 



Montana: Bozeman, 1887, F. Tzueedy, 2iy. 



Yellowstone Park: 1884, F. Tweedy, igj, in part, and ig4'. 

 East Fork of Yellowstone, 1885, 814. 



* Cryptanthe ambigua (Gra}^) Greene, Pittonia, i: 113; Krynitzkia 



anibigiia Gray, Proc. Am. Acad. 20: 273 [Syn. Fl. 2^: 426]. 

 Somewhat like C. Watsonii in habit, but the nutlets are more or 

 less muricate. Valle}\s, up to an altitude of 2500 m. 



