CATALOGUE. 143 



minutely glandular-pubescent, numerous, narrowly linear, the long acuminate 

 tips recurved and often blackish ; rays long, bright purple ; achenia some- 

 what hairy. — Subarctic America to California and Colorado. East Humboldt 

 Mountains, Wahsatch and Uintas; 8-11,000 feet altitude; July, Au- 

 gust. (511.) 



Var. SCAPOSUS, T. & Gc. "Csespitose, dwarf; scape shghtly exceeding 

 the obovate-oblong radical leaves, naked, or with a few bracts, bearing a 

 single head." — Wahsatch Mountains, near Cottonwood Lake; 9,500 feet ele- 

 vation. ^Scape 6' high ; leaves 2' long, 6" wide ; rays white ; not exactly Fre- 

 mont's plant, but very near it. (512.) 



AsTEE PULCHELLUS. Dwarf ; caudex woody, erect, mostly simple, the 

 surface corrugated transversely and the upper part covered with vestiges of 

 former leaves ; stems assurgent, 2-3' high ; leaves subcoriaceous, rigid ; the 

 radical ones glabrous, linear-spatulate, 1-2' long, about 1" wide, 1-nerved and 

 with a few indistinct veins ; the cauline ones few and small, linear, somewhat 

 falcate, clasping ; the uppermost subulate, slightly pubescent, as is the upper 

 part of the stem ; heads medium-sized ; involucre broadly obconic ; the 

 loosely appressed scales imbricated in several rows, at first sparingly lanu- 

 lose, oblong or linear-oblong, scarcely acute, outer ones and tips of the inner 

 ones purplish ; rays bright-purple ; styles of the disk-flowers with lanceolate 

 branches, the stigmatic portion about 3 times shorter than the hispid append- 

 age ; achenia smooth or sparingly pubescent ; pappus of 25-30 barbellate 

 setae. — This plant will find its place in the section Xylorrhiza, and is nearly 

 related to A. Andersonii, from which it differs chiefly in its smaller size, nar- 

 rowly spatulate and rather obtuse radical leaves, in the lanceolate, not filiform 

 appendages of the style, and in the nearly or quite smooth achenia. Rocks 

 at the base of South Clover Peak ; 9,000 feet altitude; September. Plate 

 XVI. Fig. 7. A plant. Figs. 8, 9. Outer and inner involucral scales ; en- 

 larged two diameters. Fig. 10. A ray-flower; four times enlarged. Fig. 11. 

 Its style ; enlarged eight diameters. Fig. 12. A disk-flower. Fig. 13. An 

 anther. Fig. 14. The branches of the style ; on the same scale. (513.) 



Aster Andeesonii, Grray. Proc. Amer. Acad., 7. 352. Sparingly 

 lanulose and soon glabrous ; stems mostly 6-9' high, 1-3 from an erect or 

 assurgent woody caudex ; radical leaves grass-like, narrowly linear, acute, 

 3-6' long, 1-2" wide, mostly 3-uerved, the cauline gradually smaller, and the 

 uppermost reduced to bracts ; heads solitary, rather large ; scales of the 



