WOOTON AND STANDLEY—NEW PLANTS FROM NEW MEXICO. 185 
One of the most abundant species in the mountains of southern New Mexico; 
a tall, coarse plant, usually growing along streams. It has passed as Hrigeron 
macranthus, but has different pubescence and is a stouter, more leafy plant. 
Erigeron semirasus Wooton & Standley, sp. nov. 
Perennial from a slender rootstock; stems usually slender, erect, densely 
leafy, 60 cm. high or less, mostly glabrous below, above puberulent and some- 
what glandular, reddish; basal leaves oblanceolate-spatulate; lower cauline 
leaves oblanceolate, the upper lanceolate or lance-ovate and but little reduced, 
acute, the uppermost sessile by clasping bases, scabrous, not ciliate, bright 
green, thick, entire; peduncles few, short, stout, ascending, nearly concealed by 
the leaves; disk about 12 mm. broad; bracts in 2 series, linear, acute, glandular- 
puberulent; rays purple, narrow, numerous, 10 mm. long; achenes strigose, the 
pappus in 2 series. 
Type in the U. 8. National Herbarium, no. 495395, collected in the Mogollon 
Mountains on Mogollon Creek, July 23, 1908, by O. B. Metcalfe (no. 320). 
Altitude 2,400 meters. 
ADDITIONAL SPECIMENS EXAMINED: Mountains near Las Vegas, July, 1881, 
Vasey; 1847, Fendler 376; Harveys Upper Ranch, alt. 2,880 meters, 1908, 
Standley 4606; Beulah, August, 1899, Cockerell; Beulah, 1899, Porter; Upper 
Pecos, 1904, Bartlett 1238. 
Erigeron senilis Wooton & Standley, sp. nov. 
Biennial or a short lived perennial from a slender root; stems branched 
from near the base, usually simple for about 2 cm. then branched, the 
branches very slender, 30 cm. long or less, prostrate or ascending, densely 
hirsute at the base, above strigose; basal leaves spatulate-obovate, obtuse, 
long-petiolate; cauline leaves rather distant, spatulate-obovate to oblanceolate, 
thin, bright green, considerably reduced toward the extremities of the branches, 
abruptly acuminate or acutish, strigose; heads 10 to 12 mm. in diameter, on 
long, slender, sparingly strigose peduncles; bracts nearly equal, linear, acute, 
hirsute; rays numerous, pale purplish, very narrow, 4 to 5 mm. long; achenes 
glabrous, stramineous, the pappus in a single series. 
Type in the U. 8. National Herbarium, no. 560777, collected in a canyon 
above Van Pattens Camp in the Organ Mountains, June 9, 1906, by Paul C. 
Standley. 
ADDITIONAL SPECIMENS EXAMINED: Organ Mountains, alt. 1,650 meters, August 
29, 1894, Wooton. 
In habit this is much like HZ. flagellaris, but the stems have different pubes- 
cence and the leaves are much broader, less reduced toward the extremities, and 
more obtuse. The method of branching, too, is different from that of JZ. 
flagellaris. 
Erigeron bakeri Wooton & Standley, sp. nov. 
Perennial from a slender rootstock; stems stout, erect, 45 cm. nigh or less, 
simple up to the inflorescence, glabrous near the base, elsewhere finely and 
densely soft-pubescent; basal leaves oblanceolate, acute, 20 cm. long or less, 
long-petiolate; cauline leaves oblanceolate below to lanceolate or elliptic-oblong 
above, acute or acuminate, numerous, thin, sparingly appressed-pubescent, 
bright green; peduncles stout, 10 cm. long or less, soft-pubescent with fine, dark 
hairs, bearing a few small leaves; disk 12 to 14 mm. wide; bracts in about 2 
series, linear, acute, appressed, canescent; rays purplish, narrow, numerous, 7 
or 8 mm. long; achenes strigose, the pappus in 2 series. 
Type in the U. S. National Herbarium, no. 369203, collected near Chama, 
September 9, 1899, by C. F. Baker (no. 678). 
