322 MEMOIRS OF THE NEW YORK BOTAXICAL GARDEN. 



Polemonium occidentale Greene, Pittonia, 2 : 75 ; Polemonium cocrii- 



leiim Gray, Proc. Am. Acad. 7: 281, in part [Bot. Cal. i : 500; 



Syn. FL 2': 151, in part; Man. R. M. 253] ; not L. 



Montana: Southwestern, 1888, 7^ Tweedy, 135; Deer Lodge 

 Co., Emma Ware; S\\\qv ^o\n Co., Mrs. Moore ; Bitter Root Val- 

 ley, 1880, Watson (?). 



Yellowstone Park : 1886, Francis Hall ; Indian Creek, 1884, 

 Tivecdy ; 1883, Miss Mary Co nipt on. 



Polemonium viscosum Nutt. Journ. Acad. Nat. Sci. Phila. (II.) i: 



154 [Rydb. Bull. Torr. Bot. Club, 24: 252J. 



Nearest related to P. confertmn Gray, but has smaller segments 

 to the leaves, and a shorter more open dark-blue corolla. Mountain 

 tops, at an altitude of about 3000 m. 



Montana: Park Co., 1887, F. Tzveedy, 280; Little Belt Moun- 

 tains, 1896, Flodman, 742; Cedar Mountains, Jul}^ 16, 1897, Ryd- 

 berg & Bessey, 483"/ ; Bridger Mountains, June 15, 4836 (white- 

 flowered) ; Bridger Mountains, June 1^,4834; McDonald's Peak, 

 1883, Candy, 2J3 ; Belt Mountains, 1883, Scrihner, 162. 



Yellowstone Park : 1884, Tweedy, ji. 



Idaho: Mt. Chauvet, July 27, 1897, Rydberg d- Bessey, 4833 

 (white-flowered) . 



Polemonium confertum Gra}-, Proc. Acad. Nat. Sci. Phila. 1863: 



73 [Syn. Fl. 2': 150; Man. R. M. 253; Bot. Cal. i: 500]. 



On mountain tops, at an altitude of 2500 m. or more. 



Montana: Lima, 1895, Rydberg, 2-/6j; Yogo, 1888, R. S. 

 Williams, 48Q; Stillwater, 1897, P. Koch, 60; Terminus and 

 Odell's, 1880, Watson. 



Yellowstone Park : 1884, F. Tzveedy, ji. 



* Polemonium micranthum Benth. ; DC. Prod. 9: 318 [Syn. Fl. 2' : 



151; Bot. Cal. i: 499]. 



A small annual plant with an almost rotate corolla 3-7 mm. in 

 diameter. Plant somewhat viscid-pubescent. In springy places. 

 Montana: Livingston, 1883, Scribncr, 164. 



HYDROPHYLLACEAE. 



* Hydrophyllum capitatum Dougl. ; Benth. Trans. Linn. Soc. 17: 



273: [Syn. Fl. 2^- 154: Bot. Cal. i: 502]. 



A species characterized by the peduncles which are shorter than 



