WOOTON AND STANDLEY—NEW PLANTS FROM NEW MEXICO. 181 
the corolla but slightly inflated, the lobes lanceolate, acute; achenes densely 
sericeous. 
Type in the U. S. National Herbarium, no. 233968, collected near White 
Water, Chihuahua, September 11, 1898, by Dr. E. A. Mearns (no. 2288). 
ADDITIONAL SPECIMENS EXAMINED: Dog Spring, New Mexico, September 22, 
18938, Mearns 2407. 
This is a very striking species, distinguished by its numerous, very narrow, 
long, and weak leaves, the many pedunculate heads, and the acute bracts. 
Isocoma wrightii (A. Gray) Wooton & Standley. 
Linosyris wrightit A. Gray, Pl. Wright. 1: 95. 1852. 
Bigelovia wrightit A. Gray, Proc. Amer. Acad. 8: 639. 1873. 
This has been confused with J. heterophylla, but is amply distinct in its 
narrow leaves and slenderly pedunculate heads. Both species occur in New 
Mexico. 
Chrysothamnus baileyi Wooton & Standley, sp. nov. 
Low, densely branched shrub; older branches covered with rough, dark gray 
bark, the younger ones straw colored, slender, puberulent, angled, densely 
leafy; leaves erect or appressed, linear or linear-oblong, 15 mm. long or less, 
abruptly acuminate, sharp-pointed, thick, dull pale green, minutely ciliolate 
with short, stout hairs, otherwise glabrous, sessile; heads numerous, clustered 
at the ends of the branches, turbinate to cylindric, not strongly angled; in- 
volucres 10 mm. high or less, the numerous bracts ovate to oblong or lanceolate, 
thin, glabrous, abruptly acuminate, mostly bristle-pointed; achenes glabrous, 
striate; pappus yellowish, 8 to 10 mm. long. 
Type in the U. 8S. National Herbarium, no, 443565, collected at the north end 
of the Guadalupe Mountains, September 4, 1902, by Vernon Bailey (no. 498). 
ADDITIONAL SPECIMENS EXAMINED: White Mountains, alt. 1,620 meters, 1897, 
Wooton 508; Buchanan, August 12, 1909, Wooton. 
This is similar in general appearance to C. pulchellus, That species does not 
have ciliolate leaves and has much larger heads and longer pappus, 
Solidago arizonica (A. Gray) Wooton & Standley. 
Solidago canadensis arizonica A. Gray, Proc. Amer. Acad. 17: 197. 1882. 
Stems stout, usually simple, 1 meter high or often more, striate, finely and 
densely cinereous-puberulent; leaves very numerous, often crowded, elliptic to 
elliptic-lanceolate or oblanceolate, 7 to 18 cm. long, acute, attenuate at the base 
to a broad, margined petiole or sessile, sharply serrate or often only obscurely 
and remotely serrate, bright green, evidently triple-veined, copiously scaberulous 
on both surfaces; inflorescence a broad, pyramidal panicle, 25 cm. long and as 
broad or smaller, all the branches recurved-ascending, slender, densely puberu- 
lent, sparsely viscid; pedicels slender, erect or ascending, 5 to 7 mm. long; 
heads campanulate, about 5 mm. high, with very numerous flowers and short, 
narrow, inconspicuous rays; achenes short, loosely pubescent, less than half as 
long as the white, scabrous pappus. 
Although first described from Arizona, this plant is a common and showy 
species of southern New Mexico. It has always been associated with 8S. cana- 
densis, but seems remarkably distinct from that species, especially by its very 
large heads. 
Solidago howellii Wooton & Standley, sp. nov. 
Stems low and stout, 40 cm. high or less, purplish below, densely canescent ; 
basal leaves not seen; cauline leaves narrowly elliptic to oblanceolate or linear- 
oblanceolate, 25 to 75 mm. long, acute, or the lower obtuse, very thick and stiff, 
‘tapering at the base, mostly entire, prominently 3-nerved, densely scabrous- 
