218 PITTONIA. 
but broadly so, their bracts few and little imbricated, almost 
wholly herbaceous, the outer from 4 to 1 inch long, linear, 
entire, acute, wholly glabrous as are also the short spatulate- 
linear ones: rays 15 to 20, 2 inch long, of a rich rose-purple 
or paler and roseate-lilac: achenes not known: pappus light- 
colored. 
Rocky ravines in the mountains of southern Colorado 
near Pagosa Peak, at 9,000 feet, C. F. Baker, 12 Aug., 1899. 
A most beautiful and very distinct new Aster, rather allied 
to such eastern species as A. paniculatus and Novi-Belgii, 
the western group of which A. adscendens is typical. The 
outer involucral bracts often surpass the rays. 
A. GLASTIFoLIUs. Stems a foot high or more, closely and 
amply leafy up to the terminal and somewhat dichotomously 
cymose inflorescence; herbage pale-green and glaucous, 
nearly glabrous, some lines of white pubescence marking 
the stem, the leaf-margins scabrous, the lower face of the 
foliage sometimes very sparingly so: lowest leaves broadly 
oblanceolate, the others spatulate-lanceolate, all entire, acute, 
2 to 5 inches long, sessile by a broad clasping base: pedi- 
cels of the 5 to 12 heads subtended by conspicuous oblong- 
linear leafy bracts: involucres broadly campanulate, nearly 
+ inch high, their bracts in 2 or 3 series but subequal, 
especially in the terminal head, where they are almost 
wholly herbaceous, lance-linear, acute and more or less cili- 
olate, those of the lateral heads more imbricated and with 
more evident colorless margin toward the base, all strictly 
erect: rays 20 to 30, long and showy, purple. 
Known to me from but two stations, both in Wyoming, 
namely, Prof. A. Nelson’s n. 3,555, from North Vermillion 
Creek, 17 July, 1897, and one from Pass Creek, in the Big 
Horn Mountains, 16 July,1890. A very satisfactory species 
