182 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
canescent on both surfaces; inflorescence pyramidal or narrow, 10 to 15 cm. long, 
all the branches recurved, densely canescent; leaves of the inflorescence elliptic 
to ovate-lanceolate or linear-lanceolate, acute; pedicels 3 to 5 mm. long; heads 
5 to 7 mm. high; involucral bracts oblong, obtuse, straw colored, glabrous or 
nearly so; rays 2 to 2.5 mm. long, pale yellow; achenes conspicuously strigose. 
Type in the U. S. National Herbarium, no. 495104, collected on the Sierra 
Grande, August 15, 1908, by A. H. Howell (no, 219). 
ADDITIONAL SPECIMENS EXAMINED: Clayton, 1891, Carleton 393; Sierra Grande, 
1903, Howell 286, 237; Trinchera Pass, September 7, 1903, Howell 190; Folsom, 
1908, Howell 162; Capitan Mountains, 1903, Gaut 91; Sierra Grande, altitude 
2,300 meters, 1911, Standley 6097; Nara Visa, 1911, Fisher 204. 
This is related to S. radula, but has larger heads and 3-nerved cauline leaves. 
The plant, too, is not bright green, but dull yellowish or grayish, because of the 
more abundant pubescence of the various parts. It is also related to S. mollis 
Bartl., but has very different leaves. 
The plant is abundant upon the lower slopes of the Sierra Grande, growing 
among the volcanic rocks. 
Solidago neomexicana (A. Gray) Wooton & Standley. 
Solidago multiradiata neomexicana A. Gray, Proc. Amer. Acad. 17: 191. 1882. 
Stems stout, erect, 50 to 60 cm. high, purplish, striate, nearly glabrous below, 
above viscid-puberulent ; basal leaves not seen, the cauline ones oblanceolate, 5 
to 10 cm. long, acute, pale green, narrowed at the base into broadly winged 
petioles, glabrous, finely and inconspicuously reticulate-veined, never triple- 
veined; inflorescence rather loosely thyrsoid, often with loose axillary clusters, 
viscid-puberulent; peduncles short, stout, 2 to 4 mm. long; heads large, 7 mm. 
high, campanulate, with numerous disk and ray flowers; bracts unequally im- 
bricated, narrowly oblong, obscurely puberulent, acute; achenes about 2 mm. 
long, terete or nearly so, stout, densely appressed-pubescent, about half as long 
as the copious pappus. 
The type was collected by Rusby, in September, 1881, on high, rocky summits 
of the Mogollon Mountains of New Mexico. The plant seems not to have been 
found by any other collector. 
Solidago tenuissima Wooton & Standley, sp. nov. 
Stems slender, glabrous, pale, about 1 meter high or a little less, simple; 
basal leaves linear-oblanceolate, acute, entire or with a few remote, low teeth, 
10 to 20 cm. long; cauline leaves linear-oblanceolate, the uppermost nearly 
linear, glabrous, bright green, conspicuously veined but never triple-nerved, 
acute, long-attenuate to the base, 5 to 15 cm. long, usually entire or the lower 
remotely serrate, the leaves rather numerous on the stems, spreading or in- 
clined to be ascending; inflorescence a narrow panicle with few ascending 
branches, often a few pedunculate racemes in the axils of the leaves, the whole 
very narrow and slender, 10 cm. long or less and less than 5 em. wide; branches 
of the inflorescence and pedicels puberulent, the latter 3 to 5 mm. long; bracts 
linear, 5 mm. long or less; heads rather numerous, 3.5 or 4 mm. high; involucral 
bracts oblong-lanceolate, obtuse, ciliolate at the apex, glabrous or sparingly 
puberulent; rays small, 1.5 mm. long. 
Type in the U. 8. National Herbarium, no. 591665, collected in Guadalupe 
Canyon near Cloverdale, July 15, 1892, by Dr. E. A. Mearns (no. 466). 
ADDITIONAL SPECIMENS EXAMINED: Head of Guadalupe Canyon near Clover- 
dale, July 15, 1892, Mearns 478; along streams, Mogollon Mountains, July, 
1881, Rusby 227. 
Doctor Rusby’s specimens were distributed as S. missouriensis, and our 
species belongs to the group of which that species is a member. It is related 
