1915] PAYSON—COLORADO PLANTS 379 
Psoralea aromatica n. sp.—Perennial herb, 1.5~2 dm. high: 
stems decumbent and sparingly branched, 2-3 dm. long, sparsely 
pubescent with short, rigid, appressed hairs: leaves green, rather 
numerous, on petioles 3-5 cm. long; leaflets usually five, petiolulate, 
cuneate-obovate, obtuse, mucronate, 2cm. long, 1cm. broad, 
lepidote, sparingly appressed pubescent; stipules lanceolate and 
scarious, persistent, 6-8 mm. long: flowers borne in axillary racemes 
1. 5-2 cm. long, light blue, in part at least; bracts linear-lanceolate, 
scarious, much shorter than the calyx; calyx somewhat accrescent 
in fruit, bilabiate, sparingly pubescent except on the margins where 
it is densely pubescent with short rigid hairs, lower lip lanceolate, © 
nearly equaling the corolla, upper lip 2-cleft, almost one-half 
as long as the lower division, lateral lobes 2mm. long; corolla 
rcm. long, blade of standard broadly elliptical; lateral petals 
narrow, scarcely equaling the standard; keel much shorter (7 mm. 
long): pods 1.5 cm. long, bearing a broad, slightly curved acute 
beak 8mm. long; seed smooth, compressed, elliptical, 4—5 mm. 
long. 
This plant is perhaps most closely related to P. californica Wats., from 
which it is easily distinguished by the glabrate calyx with its very unequal 
lobes. The name is given because of the delicate but pleasant odor of the 
dried plants. Collected on a dry, clay hillside near Bedrock, Paradox Valley, 
Colorado; alt. about 5000 ft.; no. 451, June 17, 1914. 
EUPHORBIA FENDLERI dissimilis, n. var.—A well marked variety, 
differing from typical E. Fendleri T. & G. principally in the larger 
ovate to lanceolate leaves (7-10 mm. long) which are often acute, 
and in the usually entire appendages which are 1-3 times as broad 
as the gland. 
Common on dry rocky hillsides, throughout the western half of Montrose 
County; no. 119, June 27, 1913, and no. 493, July 13, ror4, at Naturita, 
Colorado. 
Ruus UTAHENSIS L. N. Gooding.—Collected on a rocky hillside 
near Bedrock, Paradox Valley; alt. about 5200 ft.; June 17, 1914; 
‘no. 457. : 
OROGENIA LINEARIFOLIA lata, n. var.—Leaves elliptic and quite 
entire or irregularly lobed and cleft at apex and then truncate, 
4-6 cm. long, 1-3 cm. broad. 
