Plants of the Rocky Mountains—Supplement HI. [3384] 41 
eoronopifolia in Pl. Wright, 1, D 69.) All the specimens I have seen are 
hoe annual (sometimes simple and one-flowered) or, usually, biennial, 
rosulate entire radical leaves ; nanan from the base, diffuse or 
even decumbent; an erect form was collec y A. Gordon on the Upper 
Canadian River, No. 29, similar to the last said in habit. Stems usually 
4-6 inches high, but, , according to o Nuttall, the decumbent branches some- 
receive the name of 2. Humboldtii. 
‘3. CEnorHERA axprcautis, Nuttall in Fras. Cat., 1813, & Gen. 7 P- 
245; Torr. & Gr. Fl. 1,495; Gray Pl. Wright 1, p. 69, & 2 
Perennis, glabra, paberild seu ‘hirsuta ; eaulis cortice albid@ oaeeanet 
nitente ; foliis maxime variis; petalis ‘orbiculato-ovatis in unguem plus 
ae e bast crassiore sessili lineari divaricata saepe flexuosa seu deflexa ; 
LL minoribus lineari-lanceolatis laevibus. A common plant on the 
western plains, extending into Oregon, New Mexico and Chihuahua, as vari- 
able in habit, growth and foliage as it is common, but always easily recog- 
nized by the unvarying characters of the flower and fruit as above indicated, 
and also by its white glistening stems and branches, the epidermis of 
which is apt to peal off in the manner of many Loasacee. The white 
flowers, 14-1 inches in diameter, at last turn pale-red ; the very slender 
capsule, connected by a very thick base with the stem, is usually 14-1} 
inches long, and spreads at right angles, or is curved or twisted in various 
directions. Seeds smooth, dark-brown, lance-linear and usually very acute 
at one end, and 0°8 line long; var. 0, has smaller (0°6 line) and obtuse 
seeds, According to foliage and pubescence I arrange the specimens be- 
fore me under the following varieties 
a. Foliis basi in petiolum brevem attenuatis, 
Var. «. Nor erecta, glabriuscula seu puberula, simplex seu ra- 
mosa ; foliis fnearibos seu lanceolatis seu oblongis integris vel plus minus 
dentatis. Here belongs E. pallida, ta with its variety leptophylla, 
Torr. & Gr., as ieee indicated by Prof. Gray. Nuttall describes this 
form as sometimes 3 feet high, and Geyer aaa that in the sandy plains 
of Devil’s Lake and at the sources of = Peter’s River it forms shrubby 
bushes of the size of Spartium scopariu iba ig even 4 feet bigh; but 
it seems more usually between one and two fee igh, Leaves 1-24 inches 
long and ty lines wide. One of the Moniek leaved forms is Fendler’s 
ag — No. 
222) an | a very canescent (No. 178 the latter with singularl 
short “8s apparently fertile capsules, scarcely 3 lines long. 
