

Rydberg : Studies on Rocky Mountain Flora 529 



broad, ovate : pedicels usually 3 together, very short, in fruit 1-4 

 mm. long: bractlets under the flowers 3, broadly triangular, con- 

 nate for about two thirds their length : flowers yellow : sepals 

 obovate, 4-5 mm. long: petals somewhat^narrower "and longer: 

 capsule ovoid, about 5 mm. long : beaks about! mm. long, spread- 

 ing : seeds appendaged. 



This has been confused with the eastern T. glutinosa Pers. which 

 has an elongated raceme, longer pedicels, and oblong subequal 

 sepals and petals, about 4 mm. long. All specimens from the 

 west referred to T. glutinosa may belong to T. intermedia. At 

 least all that I have seen do so. T. intermedia grows in bogs to 

 an altitude of 2,700 m. from Saskatchewan to Alaska, British 

 Columbia and Wyoming. The following specimens belong to it: 



Alaska : Sheh-Shooh Lake, 1895, M. IV. Gorman, j8 (type) ; 

 Yes Bay, 1895, T/ios. Hozvell, 1666 ; Khantaak Island, 1892, F 

 Funston, ffi ; Sitka, Bongard. 



British Columbia: Summit of Selkirk Mountains, 1890, 

 John Macotm. 



Washington: Totoish Mountains, 1897, 0. D. Allen 2y4.il) 



Montana: Flathead River, 1892, R. S. Williams, pij ; 

 Granite, 1892, Kelsey ; Upper Marias Pass, 1883, Candy y 328. 



Wyoming: Cement Creek, 1897, F. Tzveedy, 336. 



ToFiELDiA occidentals Wats. Proc. Am. Acad. 14: 281,. 1879 



This species is distinguished from the preceding by the nar- 

 rower, less connate bractlets, longer pedicels, narrower sepals, 

 larger capsule, 8 mm. long, and longer ascending beaks. The 

 following specimen from the Rocky Mountain region is in the 

 New York Herbaria. 



British Columbia : Avalanche Mountain, 1890, /. M. Maconn. 



XEROPHYLLUM 



This genus is represented by two species 



Petals and sepals 7-10 mm. long. 

 Petals and sepals 4-6 mm. long. 



X. ten ax. 

 X. Douglasii. 



Xerophyllum tenax (Pursh) Nutt. Gen. Am. I : 235. 18 18 



Helonias 



1814. 



Douglasii Rvdb. Mem 



