156 



BOTANY. 



late-linear, sharply and irregularly serrate; racemes strict, at length some- 

 what spreading, but scarcely secund ; heads smaller." Ruby and Huntington 

 VaUeys and lower canons of the East Humboldt Mountains ; July-Septem- 

 ber. (560.) 



SoLiDAGO GiGANTEA, Aiton. Saskatchewan to Oregon, and eastward 

 from Canada to Alabama. Two forms were collected :— (a.) Leaves thin, 

 smooth, distantly serrulate. On Poplar Creek, in the East Humboldt 

 Mountains; 6,500 feet elevation. (561.) (&.) Leaves thickish, often some- 

 what scabrous above and on the veins beneath, broadly lanceolate, and the 

 lower ones at least coarsely serrated. Stream banks throughout Nevada and 

 in the Wahsatch; 4,500-6,000 feet elevation ; July-October. (562.) 



SoLiDAGO occiDENTALis, T. & Gr. Smooth ; stems 2-3° high, panicu- 

 lately corymbose at the summit, leafy; leaves linear-lanceolate, obscurely 

 3-5-nerved, minutely scabrous on the edges,'the larger ones 4' long, 3" broad ; 

 heads rather large, pedicellate in many small corymbs, broadly obconic ; 

 involucral scales loosely imbricated in about 3 series, oblong-linear, the 

 straight tips greenish, ciliolate, rather acute ; rays 15-25, very small ; disk- 

 flowers 10-15 ; achenia pubescent. — Oregon and California to the Eocky 

 Mountains, (Nuttall.) Big Bend of the Truckee, and on Soda Lake in Carson 

 Desert, Nevada ; 4,500 feet elevation ; August. Very near to 8. lanceolata 

 of the east, which extends as far west as Kansas, but the latter plant has the 

 branches and leaves considerably scabrous-pubescent, the heads narrowly 

 oblong -clavate, and the involucral scales somewhat resinous and closely 

 appressed. 247 Hall & Harbour, from the Nebraska plains, seems to be S. 

 occidentalis rather than S. lanceolata, though from its station one would look 

 for the latter and not the former. (563.) 



LiNOSYEis^ GRAVEOLENS, T. & Gr. Shrubby, forming a dense bush, 

 1-4° high, with numerous virgate terete smooth and green, or puberulent- 

 tomentose and whitish branches ; leaves narrowly linear, 1-nerved, 1-2' long, 

 \-l" wide ; heads large, 5-flowered, in little clusters which are either corym- 



'LINOSYEIS, LoBBL. Heads 5-maiiy-flowered,tlie (yellow) flowers all tubvilar and perfect. In- 

 volucre obconic or campanulate ; tlie somewhat rigid and cariuate scales imbricated in several series ; 

 the innermost elongated ; the outer ones shorter and passing into the leaves. Receptacle alveolate- 

 toothed ; the teeth lacerate, or sometimes becoming cuspidate processes. Corollas slender, the expanding 

 limb 5-cleft. Style with flattened branches ; the stigmatic portion oblong or linear ; the pubescent 

 appendages lanceolate or often elongated. Achenia oblong, villous or pubescent. Pappus of copious 

 unequal scabrous capillary bristles. — Perennial herbs or suffruticose plants, branched from the base and 

 corymbose or sub-paniculate at the summit, often resinous and having a strong balsamic but unpleasant 

 odor ; leaves linear or lanceolate, sessile. Natives of Asia, Europe and Western North America. 



