196 Edward L. Greene: Novitates Boreali-Americanae. IV. 
> The species is an elegant one, and quite showy, by reason of its 
uncommonly numerous and well developed rays which are of a deep 
golden yellow. 
38. Chrysothamnus formosus Greene, nov. spec. 
Frutex ramosus sat robustus, at humilis, modo 2—3 dm altus, un- 
dique involucris exceptis albo-lanatus; folia anguste linearia, acuta; cirea . 
2 cm longa, aut adscendentia aut patentia; capitula pro planta magna, 
in apieibus ramorum  annotinorum corymbosim conferta, involueris 
stramineis 10—12 mm altis, 5-floris, squamis numerosis (circa 25) quin- 
quefariam imbricatis, obtusiusculis, exterioribus ovatis, interioribus oblongo- 
lanceolatis; achenia nondum visa. 
An elegant and showy species, known only as collected by myself, 
in a moist alkaline and clayey spot among the hills to the south of Grand 
Junction, Colorado, 27 Aug. 1896. 
39. Solidago duriuscula Greene, nov. spec. 
Caulis simplex rigide erectus, 3 dm altus, usque ad paniculam 
crebre foliosus; planta undique, foliorum. margine excepto, glaberrima ; 
folia inferiora 3—5 em longa adscendentia, late spathulato-oblanceolata, 
rigida, acuta, apicem versus crebre et argute serrata, margine subserrato- 
scabrula, superiora sensim ‘angustiora, magis acuta, omnia utrinque 
obscure trinervata et manifestim reticulato-venulosa; panicula densa, ` 
subpyramidata, 5—7 dm alta; capitula majuscula, subcampanulata, 
squamis pluriserialibus glaberrimis oblongis obtusis; flores radii ut vide- 
tur nulli; disci subclaviformes; achenia strigulosa. 
The precise station whence the specimens of this well marked 
golden rod came is not to be stated with certainty. There are two 
sheets of it in the U. S. Herb., all collected in Sept., 1881, by Lester 
F. Ward. The ticket on one sheet says ,Nebraska*, on the other 
sheet one reads „Chicago Burlington and Quincy Railway, Illinois“. 
Probably Mr. Ward picked up the specimens at some small railway 
station, while on a western tour, and that at some point between the 
Illinois prairie region, and Nebraska, and afterwards forgot just where 
The hard rigid texture of the plant would argue the Nebraskan habitat. 
The species belongs to the group of S. Missouriensis. 
40. Samolus vagans Greene, nov. spec. 
Humilis, glaber, pallide viridis; folia basilaria, 2—3 cm longa spathu- 
lato-obovata, obtusiuscula, caulina perpauca remota suborbicularia, basi- 
laribus 3-plo minora; caules 3—5 fere filiformes debiles, late decumbentes 
vel procumbentes, 8—15 cm longi, para ramosi, pauciflori; flores race- 
mosi, racemo brevi; pedicelli minutim bracteati, bracteis lineari-subulatis 
supra basin adnatis; calycis ad medium partitae laciniae triangulares 
acutae? corolla alba, minuta. 
Southern Arizona, growing around a limestone spring in the 
Chirieahui Mountains at about 5500 feet; collected by J. C. Blumer 
in 1907. 
