334 Plants of the Rocky Mountains — Supplement II. 



coronopifolia in PI. Wright, 1, p. 69.) All the specimens I have seen an 

 either annual (sometimes simple and one-flowered) or, usually, biennial, 

 with rosulate entire radical leaves; branching from the base, ditfiise or 

 even decumbent ; an erect form was collected by A. Gordon on the Upper 

 Canadian River, Xo. 29, similar to the last species in habit. Stems usually 

 4-6 inches high, but, according to Nuttall, the decumbent branches some- 

 times 2 feet long. Flowers 2|-3 inches in diameter, white, turning pale 

 red: capsule 1-lf inches long: seeds very regularly and prettily pitted 

 between the longitudinal ribs, 0-6-0-'7 of a line long, yellow. Don and 

 Steudel have changed Nuttall's earlier name, but his must stand and 

 Humboldt's plant, described five years later under the same name, loay 

 receive the name of (E. Humboldtii. 



"3. (Enothera albicaulis, Nuttall in Fras. Cat., 1813, & Gen. 1, p. 

 245; Torr. & Gr. Fl. 1, 495; Gray PI. Wright 1, p. 69, & 2, p. 5S: 

 Perennis, glabra, puberula seu hirsuta ; caulis coriice albida i. 

 nitente ; foliis maxime variis ; petalis orhkulato-ovatis i 

 minus attenuatis iniegris stamina superautibus pistillu 

 sapsula e basi cmssiore sessili lineari divarkata saepe fiexu 

 ceminihus minoribus lineari-lanceolatis laevibus. A comn 

 western plains, extending into Oregon, New Mexico andCh 

 "^'"^-1 habit, growth and foHage a " " ^ . . 



nized by the unvarying characters of the flower a 

 „„,! „i._ ^"i white glistening stems and 1 



1 off in the manner of many 1 



uso by its white glistening stems and branches, t 



If-lf inches in diameter, at last turn pale-red ; the very 



slender 



capsule, connected by a very thick base with the stem, is usually VU 

 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. 8, 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 2>etiolum brevem attenuatis. 



Var. a. Nutallii : erecta, glabriuscula seu puberula, simplex seu ra- 

 mosa ; foliis linearibus seu lanceolatis seu oblongis integris vel plus minu 

 dentatis. Here belongs (E. pallida, Dougl., w^ith its variety leptophj/m 

 Torr, & Gr., as already indicated by Prof. Gray. Nuttall describes tn'S 

 form as sometimes 3 feet high, and Geyer notes that in the sandy r^^*'"' 

 of Devil's Lake and at the sources of St. Peter's River it forms s hn: 

 bushes of the size of Spartium scoparium, growing even 4 feet biiil^ • 

 it seems more usually between one and two feet high. Leaves l-2i '>'■ 

 long and 1-6 lines wide. One of the broadest leaved forms is Flo- 

 N. Mex. No. 224. 



Tar. (9. RtJxciNATA :• branch iato-ramosa, patula, glabra, puber^a seu 

 canescens ; foliis lanceolatis grosse seu sinuato-dentatis. This is t*; P 

 nattjida. Gray PI. Fendl., p. 43 (description and most of the spf "'I 

 No. 223, all those with the private number 243). Fendler gat^er^ » 

 near Santa Fe; Fremont in his 3d Expedition collected a glabrous Ji- 

 222) and a very canescent (No. 178) form, the latter with 6ing«l^'y 

 short but apparently fertile capsules, scarcely' 3 lines long. 



