a 
Ae 
106 MISSOURI BOTANICAL GARDEN. 
the upper usually abruptly rounded to the short petioles; 
flowers rather few, nearly erect; petals 5 to 8 mm. long, 
lilac to deep violet; capsules as much as 50 mm., 
slender, erect, on slender peduncles about equalling the 
gradually reduced subtending leaves; seeds rather abruptly 
short-appendaged, from nearly smooth to very rough, .3 to 
-4x1mm.; coma somewhat dingy. — Icon. Crit. ii. (1824), 
73; Haussknecht, Monogr. 174. — Mountains, British Col- 
umbia to California, Colorado, and Utah ; also in Europe.— 
Specimens examined from various parts of British Colum- 
bia (Macoun), Washington (Howell; Brandegee 1882, no. 
285), Oregon (Hall, 1871, no. 0), California (Newberry ; 
' Brewer 1860-62, no. 1417), Idaho ( Watson, 1880, no. 
146), the Yellowstone region (Hayden; Tweedy 1885, no. 
519), Colorado (Parry, 1861, no. 121; Vasey, 1868, no. 
187,— 188 an albino of the same; Engelmann; Jones 
1878, no. 377; Nuttall; Hall & Harbour 1862, no. 167)» 
and Utah (Hooker & Gray, 1877; Jones 1879, no. 1099 
in part and 1103). — Plate 41. 
The following variations from the western form occur : — 
a.—Slender and low, with smaller elliptical spreading 
leaves, few suberect small flowers, short capsules, and small 
seeds. — Dells of the Wisconsin River (Lapham) to the 
Saguenay River (Pringle, 1879).—Apparently annual, in 
aspect very near the dwarf form mentioned under adeno- 
caulon, and perhaps not rightly referred here. — Plate 42. 
b.—From slender and low to quite stout, as much as a 
foot high, and few-branched, with ovate very divergent 
mostly long- and slender-stalked leaves, usually very nod- 
ding large flowers, and rather large very broad seeds.— 
White Mountains of New Hampshire to Labrador (Allen, 
1882, no. 50) and westward, passing into the usual western 
form. — Plate 42. 
,in this species the sobols sometimes pass insensibly 
into leafy shoots arising above ground, showing the im- 
possibility of maintaining a sharp distinction between the 
soboliferous and stoloniferous groups. 
