88 BOTANY. 



or alpine species. Greenland, Labrador, and the Arctic Coast to Behring 

 Strait and southward in the Eocky Mountains to Colorado. Found in the 

 Uintas ; 11,000 feet altitude ; August. The specimens are 3- (a single one 

 pinnately 5-)foliolate. 215 Parry and 172 Vasey are the same, while 217 

 Parry, 159 and 160 Hall & Harbour, and 164 Vasey, which are digitately 

 5- (sometimes pinnately 7-)foliolate, and also larger, would seem to connect 

 this species and the last. (335.) 



PoTENTiLLA GRACILIS, Dougl. Stem erect, tall, (2° high,) villous- 

 pubescent; leaves palmately 5-7-foliolate, the radical on long petioles, the 

 cauline (1-2) often subsessile ; leaflets oblanceolate, deeply pinnatifid-serrate 

 with lanceolate spreading teeth, canescently tomentose beneath ; stipules 

 large, ovate-lanceolate, acuminate, entire or coarsely toothed ; cyme fastigiate, 

 somewhat crowded ; peduncles strict, becoming elongated ; petals obcordate, 

 exceeding the ovate-lanceolate acute villous-tomentose sepals; styles slender. — 

 Somewhat resembling P. pulcherrima, but stouter, more strictly and densely 

 corymbed, the leaflets more deeply serrate, more silky-pubescent on the upper 

 surface, and very rarely subpinnate. From Washington Territory to the 

 plains of the Saskatchewan ; Wyoming Territory (Fremont.) Near streams 

 in the Pah-Ute and Shoshone Mountains and Ruby Valley, Nevada, and in 

 the Wahsatch ; 6,000 feet altitude ; June, July. (336.) 



Var. Stems low, (6-9' high,) ascending ; canescently silky-tomentose. 

 This is probably Nuttall's P.fastigiata. Diamond Valley, Nevada. (337.) 



Var. FLABELLiroEMis, Nutt. Tall; leaves 5-9 -foholate ; leaflets crowded, 

 deeply pinnatifid, the lobes linear-lanceolate. — Saskatchewan region, Oregon, 

 and Northern, California. Havallah and East Humboldt Mountains, Nevada ; 

 6,000 feet altitude. (338.) 



PoTENTiLLA NuTTALLii, Lehm. (P. rigida, Nutt.) Pubescent with 

 short appressed hairs "and minutely glandular," not canescent; stem erect, 

 stout ; leaves palmately 5-7-foliolate, leaflets cuneiform-oblong, deeply pinna- 

 tifid-toothed, segments lanceolate; stipules broadly ovate, mostly entire; 

 petals broadly obcordate, exceeding the ovate-lanceolate sepals. — Tall (18-30' 

 high) and rather stout ; Potentilla (1) of Bourgeau, 179 Anderson, 98 Bridges, 

 5036 Bolander, &c., varying in some respects, are apparently the same, though 

 the glandular character of the pubescence is wanting in all. From Nebraska 

 and the Saskatchewan to Oregon and California. On stream banks in 



