CATALOaUE. 91 



upon slender pedicels, in a loose open panicle, nodding in fruit ; calyx con- 

 cave or broadly turbinate, the lobes ovate-triangular, acute, a little longer 

 than the oblong obtuse accessory segments ; petals yellow, spatulate-oblong, 

 shorter than the sepals ; stamens 5 ; carpels 1-5 ; receptacle flattened, very 

 hirsute. — Resembling Potentilla Newherryi, Gray, (/. gracilis, Torr.,) but dif- 

 fering in its perennial root, the small number of stamens and carpels, the 

 style not at all enlarged or glandular at base, the small receptacle, and the 

 achenium but slightly rugose. P. Newherryi w^as found on the shore of Rhett 

 Lake in Northern California. This species is confined to the dry debris of 

 granite rocks on mountain ridges. West Humboldt Mountains, "Wright's 

 Canon, Nevada, (W. W. Bailey ;) 7,000 feet altitude ; September. The 

 typical form has the leaflets toothed but not parted, and but 1-3 car- 

 pels. (346.) 



Var. SETOSA. Leaflets deeply lobed or parted, the segments setose at 

 the tip ; carpels 5. East Humboldt Mountains, Nevada, (Fremont's Pass ;) 

 7,000 feet altitude ; August. (347.) 



IvESiA KiNGii. Stems several from a thick perennial root, decumbent 

 or ascending, 6'-l° long, and M^ith the leaves very glabrous and glaucous ; 

 leaflets (often imbricated on the younger leaves) ternate, the segments 1-3" 

 long, ovate, oblong or orbicular, entire, occasionally bristle-pointed, the cau- 

 line leaves often with simple leaflets ; cyme loosely panicled ; the calyx and 

 slender elongated pedicels somewhat pubescent; accessory lobes narrow- 

 subulate, shorter' than the lanceolate true ones ; petals 2" long, white, un- 

 guiculate, orbicular, emarginate, longer than the sepals ; stamens 20, (some- 

 times 15,) apparently in 2 rows, 2 opposite each sepal, and the intermediate 

 ones inserted lower upon the broadly turbinate calyx-tube ; anthers not mu- 

 cronulate ; carpels 5-8. — Near I. Pickeringii, Torr. Found in wet clayey 

 subalkine soils in Monitor, Diamond and Ruby Valleys, Nevada ; 6,000 feet 

 altitude; July. (348.) 



Rosa blanda. Ait. From Vermont to Pennsylvania and "Wisconsin, 

 west to the Rocky Mountains, and north to the Arctic Circle ; California, and 

 in the Rocky Mountains of Colorado and New Mexico. Frequent on 

 stream banks in the mountain ranges through Nevada, and in the "Wahsatch ; 

 4,500-8,000 feet altitude; May-September. "Usually 4-6° high and grow- 

 ing in dense thickets ; sometimes, among trees, climbing to the height of 15° ; 

 fruit globose or obovate ; calyx-segments tomentose on the edges. (349.) 



