154 BOTAisrs". 



ray 2-5, of the disk 3-6 ; pappus of 9-10 obtuse unequal erose-denticulate 

 chafFy scales, a little shorter than the achenium.— Plant growing in dense 

 tufts, when in flower forming a conspicuous yellow round-topped bushy 

 clump. From the Saskatchewan, east of the mountains, to New Mexico and 

 Chihuahua, and westward to California. Western Nevada, (Bloomer.) 

 From the Virginia Mountains to the Wahsatch; 5-7,000 feet elevation; 

 July-October. (551.) 



SoLiDAGO ViKGA-AUREA, L., Van MULTiRADiATA, T. & Gr. Stems viUose- 

 pubescent, especially towards the summit, mostly simple; leaves ciliate, 

 oblong-lanceolate, the radical obovate and narrowed into a petiole; heads 

 large, in a dense compound raceme or loosely corymbose ; involucral scales 

 ciliolate, acute ; rays 8-18. — Labrador ; Behring Strait and Mackenzie River 

 to California and Colorado ; Virginia City, (Bloomer.) Three forms were 

 collected: — («.) Plant 12-18' high; heads loosely subcorymbose. (552.)' 

 (b.) Plant 8-15' high ; heads thyrsoid. (553.) (c.) Plant 2-3' high ; a 

 dwarf high-alpine form of the last, identical with^rewer's Californian 1792, 

 but not the eastern var. alpina. (554.) Uinta Mountains, about Bear River 

 Canon ; 8,000 feet altitude ; the last form on a peak 12,500 feet high ; August. 



SoLiDAGO STEiCTA, Aiton'. Hudson's Bay to Maine, Pennsylvania and 

 Wisconsin. East Humboldt Mountains ; 6,500 feet elevation ; a single 

 specimen, not yet in flower, the involucral scales rather broad, but the strict 

 habit, glabrous purple stem, and narrow lanceolate leaves are sufficiently 

 characteristic. August. (555.) 



SoLiDAGO GuiEADONis, Gray. Proc. Amer. Acad., 6. 543. Smooth ; 

 stems slender, erect, 2i-3° high, from a woody rhizoma; lowest leaves 

 lanceolate, 6' long, 3-5" broad, tapering into a margined petiole, the cauline 

 ones narrowly linear, 2-3' long, 1-3" broad ; panicle erect, not one-sided, 

 very narrow and composed of few and rather small heads ; involucral scales 

 linear, acuminate, the midvein broad and prominent ; rays 8-9, scarcely 

 longer than the 10-12 flowers of the disk ; achenia puberulent. — Base of San 

 Carlos Mountain, California, along a creek ; collected by Guirado, a native 

 Californian in Prof Brewer's party. Var. spectabilis. Stems stout, 3-4° 

 high; lower and radical leaves broadly oblanceolate, 8-12' long, J-li' wide, 

 the petiole dilated at the base ; the upper ones sessile, lanceolate ; panicle 

 oblong, densely many-flowered; heads rather large, involucral scales oblong- 



