172 PITTONIA. 
whole herbage thinly tomentulose, and with abundance of 
small sessile resinous glands on both faces of the leaves; 
the lowest of these round-ovate, acute, nearly entire, 14 
inches long and almost as broad, not cordate, their petioles 
as long, stoutish and flattened; cauline pair, subcordate- 
deltoid, on winged petioles dilated at base: peduncle not 
slender, notably striate, viscidly glandular and villous under 
the involucre; this $ inch high, broadly turbinate, its 
bracts uniserial, lanceolate, glandular and puberulent: rays 
neither numerous nor large, rather pale, 5 to 7-nerved, not 
notably toothed or notched: achenes glandular-scaberu- 
lous; pappus copious, white, barbellate. 
Near the summits of the Ruby Mountains, Nevada, in the 
vicinity of perpetual snow, 20 J uly, 1896, collected only by 
the writer. 
A. GRANDIFOLIA. A foot high or more with about 3 
pairs of cauline leaves, and a solitary rather long-peduncled 
head of middle size; whole plant glabrous to the unaided 
eye, except for a scanty villous hairiness at base of involucre: 
lowest leaves 3 inches long, on petioles as long, ovate-cordate, 
coarsely serrate-toothed; lowest cauline pair more than twice 
as large (5 or 6 inches long and nearly 3 in breadth), 
oblong-ovate or elliptic-oblong, coarsely and doubly serrate- 
toothed, the blade decurrent on the short petiole, a lens 
disclosing a hirsute-ciliate margin, the uppermost pair 
triangular-lanceolate, sessile, simply and sharply serrate- 
toothed: involucre more than a half-inch high, its thin 
bracts lanceolate, almost uniserial, ciliolate: rays faintly 5 
to T-nerved, scarcely toothed at apex: disk-corollas with 
teeth pubescent externally: achenes hirsutulous above the 
middle; pappus white, barbellate. 
The type thus defined is from near Bridger Pass, Montana, 
being n. 896 of Flodman’s collection as represented in my 
