NEW WESTERN PLANTS. 197 
deltoid or triangular-lanceolate ; leaflets in 10—15 pairs, from 
obovate to oval, 4 to $ inch long, truncate or retuse: flower- 
ing peduncles stout, shorter than the leaves, having short 
few-flowered racemes: flowers about 2 inch long; calyx sub- 
cylindric, the linear teeth half the length of the tube; corolla 
pale, whitish or pinkish: pods about 1 inch long, lanceolate- 
cymbiform, acuminate, obcompressed, 1-celled, but both 
sutures a little intruded, of firm parchment texture, glabrous 
and marbled with dark red or purple externally. - 
Collected in northern Arizona, May, 1893, by Norman C. 
Wilson. Related to A. diphysus, but with long and narrow 
only slightly inflated pods. 
MERTENSIA LINEARIS. Stems tufted on the subligneous 
erown of a strong tap root, slender, ascending, about a foot 
high, leafy to the summit, the inflorescence being a loose 
leafy panicle of slender few-flowered racemes: radical leaves 
narrowly lanceolate, 13 inches long, on slender petioles as 
long, the cauline rather longer, linear and sessile, acute, all 
conspicuously 1-nerved, without lateral veins, roughish 
above with a minute strigose closely appressed short hairi- 
ness, the margins minutely scabrous-serrulate: calyx deeply 
parted into triangular carinate-nerved segments, their mar- 
gins beset with few and appressed cili: corolla } inch long, 
blue, the proper tube and the campanulate limb about equal : 
ovate-trigonous nutlets neither carinate nor margined, the 
back minutely sinuate-rugose. 
Common species of dry open ground in the foothills and 
lower mountains of Colorado, Wyoming, etc. It has been 
referred to M. lanceolata, along with the quite distinct M. 
Fendleri, to which latter it is more related. 
MERTENSIA Arizonica. Leafy throughout, apparently 
tall, only the cauline leaves seen, these lanceolate or elliptic- 
lanceolate, 3-5 inches long, very acute, subsessile, glabrous, 
the margins scabrous-serrulate by short stout sharp-pointed 
hairs: calyx campanulate, glabrous, except the hirsute-ciliate 
