164 LEAFLETS. 
obovate-dilated, all subulate-pointed and with narrow often 
erose scarious margins: corolla purple, small for the plant, 4 
lines long, ascending, not deflexed as in the allied P. confertus ; 
tube broad, nearly cylindric. 
Pine Ridge, Fresno Co., Calif., July, 1900, Hall Chandler, n. 
301 as in U. S. Herb. 
P. Lassenranus. Akin to P. confertus, almost wholly herb- 
aceous, stout, erect, a foot high, light green and glabrous: low- 
est leaves oblanceolate, cauline in 4 pairs, ovate to oblong- 
lanceolate, 2 inches long, sessile and half-clasping by a broad 
base : congested clusters of flowers sessile or definitely pedun- 
culate: sepals with long liguliform nearly linear body and an 
abrupt long and slender caudate acumination, the slightly scar- 
ious margins erose or lacerate: corolla whitish or yellowish, 
short, but the tube somewhat ventricose, not cylindric, the seg- 
ments not small. 
At 6,000 feet on Lassen’s Peak, California, 8 July, 1897, M. E. 
Jones. Type in U. S. Herb. It is also in my herbarium from 
the same region by Mrs. Austin, and again in a purple-flowered 
form as collected by myself above Donner Lake, 26 July, 1895. 
P. LINEOLATUS. Tufted, slender, a foot high, glaucescent, 
obscurely puberulent, leafy up to the open thyrsus of middle- 
sized flowers: leaves all entire, the lowest with oblanceolate or 
elliptic blade and slender petiole, the whole but an inch long, 
the cauline longer, oblanceolate to oblong-linear, sessile, ascend- 
ing: peduncles 3-flowered and, with the calyx, sparsely villous 
with gland-tipped hairs: sepals elliptic-lanceolate, acuminate, 
finely and closely lineolate, not scarious-edged: corolla purple, 
ł inch long, narrow but ventricose, bilabiate: sterile filament 
densely hirtellous at tip, sparsely so to the middle. 
Known only as collected by myself in the West Humboldt 
Mountains, Nevada, July, 1894. 
P. PHLOGIFOLIUS. Tufted stems stout, rigid, upright, 1 to 
1} feet high, very leafy with large leaves exceeding the inter- 
nodes, the whole plant glabrous, glaucous: basal leaves not seen, 
