142 BOTANY. 



rather long, white ; achenia pubescent. — By its dwarf habit this is an Orilro- 

 phium, but the long and lax involucral scales, imbricated in several rows, 

 point to the Grandijlori for a perhaps more real affinity. Wahsatch Mount- 

 ains, above Cottonwood Canon ; 9,000 feet altitude ; August. Plate XVI. 

 Fig. 1. A plant ; natural size. Fig. 2. A leaf Fig. 3. An outer involucral 

 scale. Fig. 4. An inner involucral scale ; enlarged two diameters. Fig. 5. 

 A ray-flower ; enlarged four diameters. Fig. 6. Style of the disk-flower ; 

 enlarged eight diameters. (507.) 



AsTEE GLACiALis, Nutt., (Including A. Andinus, Nutt.) Dwarf; caudex 

 woody and often stout, much branched ; stems 2-4' high ; leaves thickish, 

 glabrous, the radical ones 1-2' long, 2-4" wide, spatulate, narrowed into a 

 long petiole, obtuse or even emarginate ; cauline ones few, oblong or oblance- 

 olate ; heads solitary ; scales of the involucre nearly equal, linear-spatulate or 

 more or less acuminate, glandular-pub erulent or nearly glabrous, commonly 

 blackish-purple ; rays numerous, white or purplish. — High peaks, from the 

 mountains of Colorado to California. East Humboldt Mountains and North 

 Clover Peak, Nevada, at 10,000 feet altitude, and in the Uintas, near Bear 

 River Canon, 9-12,000 feet ; July-September. (508.) Another form, with 

 narrowly spatulate leaves about 1' long and not over a line in width, the 

 involucral scales long-acuminate, green with reddish tips, was found in the 

 East Humboldt Mountains also, and on South Clover Peak. (509.) 



AsTEE ASPEEUGINEUS. Stems 2-6' high, simple, ascending from a spar- 

 ingly branched woody caudex, like the leaves subcinereous and roughened 

 with a minute scabrous pubescence ; radical leaves roundish-obovate or spat- 

 ulate, narrowed into a long petiole, stem-leaves linear, 1 -nerved ; heads soli- 

 tary ; involucre hemispherical ; scales appressed, imbricated in about 2 rows, 

 the outer ones oblong, subacute, herbaceous, pubescent with whitish hairs, 

 the inner linear, somewhat acuminate, roughened-puberulent ; rays purple ; 

 acheuia pubescent. — Leaves 3-4" wide, and with the petiole 1-2' long. 

 Ridge near Lake Marian, East Humboldt Mountains ; 9,000 feet elevation ; 

 August. (510.) 



AsTEE SALSUGINOSUS, Rich. Stems erect, 6-18' high, few -from a 

 woody caudex, leafy ; radical leaves broadly spatulate or linear-obovate, with 

 the margined petiole 2-9' long, 4-12" wide, obtuse, glabrous, ciliolate ; cau- 

 line ones lanceolate, the uppermost sessile and partly clasping ; heads very 

 large, single or 3-5 on long peduncles ; scales of the involucre nearly equal, 



