STUDIES IN THE CRUCIFERA. 197 
very erect, appressed to the stem, lanceolate, acuminate, 
strongly auricled at the base: sessile raceme short, few 
flowered: flowers not small (about 4 lines long); sepals 
purplish; petals white or pinkish, the limb spreading: 
pods about 3 inches long, hardly a line wide, very erect; 
seeds in 2 rows. 
Frequent in the mountains of Montana, Wyoming, and 
Colorado; in the southerly localities occurring at altitudes 
of 8,000 to 10,000 feet. Excellent specimens of my own 
collecting at Empire, Colorado, 1875, are before me, as well 
as a fine series of fruiting specimens from about Pagosa 
Peak, at 10,000 feet, by C. F. Baker, 1899. Its perennial 
root, glaucous hue, and long-pointed cauline leaves com- 
pletely distinguish this from A. Drummondii; and the plant 
is less than half as large as A. Drummondit. 
JA. CONNEXA. Perennial, the stems solitary, or occasion- 
ally several, the caudex being branched, all very erect, 1 to 
11 feet high; basal leaves green, in no degree glaucous, 
mostly with a few of binate divaricately appressed hairs, 
oblanceolate, entire, acute, slenderly petiolate; upper part 
of the plant wholly glabrous and glaucescent: cauline leaves 
oblong-lanceolate, very erect, sessile and sagittate-clasping, 
the auricles broadly somewhat falcate: flowers not seen: 
pods few, very erect, commonly 4 inches long (23 to 44 in.), 
11 lines broad, the valves with a distinct midvein traversing 
an equally distinct, but shallow groove between the two 
rows of ovoid strongly winged seeds. 
Mountains about Pagosa Peak, southern Colorado, at an 
altitude of 10,500 feet, growing in moist ground along with 
Veratrum, collected by C. F. Baker, 18 August, 1899. Man- 
ifestly a southern subalpine homologue of A. Drummondii, 
and very distinet by the character of its pods, as well as by 
the glaucescent stem and stem-leaves. 
