176 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
lent, all lying flat upon the ground, sessile, or on short, broadly winged petioles; 
heads few; involucre 8 mm. high, glabrous, the bracts linear-lanceolate, pale 
yellowish green, the few outermost much reduced ; corollas deep yellow; achenes 
dark brown, glabrous, scarcely discoid at the summit, with copious pappus of 
bright white bristles 4 mm. long. 
Type in the U. S. National Herbarium, no. 686386, collected at the north end 
of the Carrizo Mountains, July 30, 1911, by Paul C. Standley (no. 7419). The 
plants were common in the wet ground about a small hillside spring flowing 
out from among juniper and pinyon trees. Upper Sonoran Zone. 
The proposed species is a very distinct one by its entire, glaucous leaves 
which are reflexed upon the ground instead of erect as in most of our species. 
The heads are comparatively small and the bracts are a clear, pale yellowish 
green rather than black or brownish as we find them in most species. The 
aspect of the plant is strikingly like that of two of the species of Cynthia. 
Crepis mogollonica Greene, sp. nov. in herb. 
Basal leaves numerous, some of them linear and entire, others narrowly 
linear-oblong or linear-oblanceolate and runcinate-pinnatifid into linear lobes, 
glabrous, bright green, thin, 18 to 24 em. long; stems slender, 40 to 60 cm. high, 
glabrous, with few, ascending branches, bearing linear, bract-like leaves at the 
nodes; heads few, long-pedunculate; involucre 10 to 12 mm. high, of linear- 
oblong, glabrous bracts; flowers bright yellow; achenes slender, brown, 5 mm. 
long, shorter than the slightly sordid pappus. 
Type in the U. S. National Herbarium, no. 495570, collected in the Mogollon 
Mountains, Socorro County, on the West Fork of the Gila, altitude 2,400 meters, 
August 23, 1903, by O. B. Metcalfe (no. 576). 
This is related to ©. glauca, or is of that group at least. It is distinguished 
from the related species by its large heads and the very long, extremely narrow 
leaves, 
Crepis neomexicana Wooton & Standley, sp. nov. 
Basal leaves in a dense cluster, about 9 cm. long, nearly sessile by winged 
bases, oblanceolate or oblong, deeply runcinate-pinnatifid with broadly trian- 
gular lobes, rather obtuse at the apex, thick and firm, bright green, glabrous; 
stems about 30 cm. high, stout, glabrous, sparingly branched, with reduced, 
linear, bract-like leaves at the nodes; peduncles sparingly tomentose; invol- 
ucres 8 mm. high, the bracts linear, slightly attenuate upwards, glandular; 
flowers bright yellow; mature achenes not seen, the young ones very short, 
brown. 
Type in the U. 8. National Herbarium, no. 563748, collected on Tularosa 
Creek, Socorro County, July 14, 1906, by E. O. Wooton. 
Similar to C. perplerans Rydb., but with smaller heads and very thick, broad, 
deeply lobed leaves. 
Ptiloria bigelovii (A. Gray) Wooton & Standley. 
Hemiptilium bigelovii A. Gray, U. S. & Mex. Bound. Bot. 105. 1859, 
CARDUACEAE. 
Coelestina sclerophylla Wooton & Standley, sp. nov. 
Slender, rigid perennial, about 35 cm. high, with numerous puberulent, nearly 
simple stems from a suffrutescent base; leaves opposite, numerous, lanceolate 
to ovate or somewhat deltoid, 25 to 40 mm. long, thick and rigid, acute or 
attenuate, attenuate or acute at the base, coarsely crenate, puberulent on both 
