ee 
@ 2. Ce Leibergii Holz. A low glabrous perennial with stems 15-20 om. 
cS tall, arising from a slender creeping rootstock, the lower leaves on slender 
petioles 2-5 cm. long, the blades either simple, the lateral leaflets being 
suppressed, or subtrifoliolate, the lateral Segnents remote, the terminal 
lobe orbicular, slightly cordate or rounded at the base, sinuately dentate, 
the teeth 5-7, each with a callous at the apex; cauline leaves similar to the 
terminal lobes of the lower, the uppermost on petioles about 1 om. long; 
flowers white, 5-4 mm. long; fruit not seen. 
Moist places near the summit of Packsaddle Peak, Sandberg 
doubtful species known certainly only 
Ce Brewori. = 
Ga} Ce. Breweri Wats. Stems erect, 30-50 om. tall from Slender fili- 
form rootstocks 1.5 mm. in diameter, glabrous throughout or sparingly hispid- 
ulous at the base, lower leaves 4-8 cm. long, pinnatifid, lobes 5-7, the ter- 
minal lobe much larger, 1-3 em. in diameter, ovate to subreniforn, | 
: commonly 
cordate, irregularly Sinuately toothed, the teeth mucronate, the lower lobes 
generally oval, reduced toward the base; upper leaves becoming gradually simple, — 
resembling the terminal lobe of the lower leaves, petioles 2-5 cm. long; 
sepals 2=3 mme long, oblong, scarious toward the tip, petals twice as long er 
more; pods erect or ascending, 2-3 om. long on the same plant, 1 mm. wide or 
less, attenuate at the apex into the style,about 3 mn. jong, pedicels 8-10 mn. 
long; seeds Noten oblong-oval, 1565 me, about 10 in pod. re 
856. A 
this collection; permaps a Ye 
ae : 
@ Occasionally plants may have undivided leaves throughut, or conversely, 
trifoliolate leaves in the upper axils; rare in our region, — > 
,Y° Kootenai co., Sandberg; Fish Lake, 5000 ft., Epling end Houck 9875. 
: > Ce oligosperma Nutt. Stems 20-40 om. tall, more or less hirsute, or 
glabrate, more often simples Froot—efben—cetibearyriever—t-?)—mere—than2=3; leaves 
> 
in a basal tuft and along the stem, 5-7 om. long, pixfiate, the leaflets 8-15 
mme long, 7-15, oval or ovate, entire or 3-toothed toward the apex, sparingly 
hirsute, on petioles 1-3 mn. long; flowers white, in a few racemes in the upper 
axils, or simply racemose; sepals 1.52 mm. long, the petals less than twice as 
long; pods ascending, about 2.5 em. long, 1-1.5 mm. wide, seeds in—e—simgle> 
wowy 10 or less, .8 mm. long, oblong-oval. 
In shaded maddy stream bottoms, mostly below 3000 fect f, infrequent; 
“_ \ 
Ne Fork Clearwater Ro, Epling and Houck 9454; Upper Priest Re, Epling 730g} | 
= 
Gs C. pennsylvanica Muhl. Stems about 50 ome tall, commonly 
e several from a short crown with fibrous roots, branching throughout; glabrous 
throughout; leaves quite variable, irregularly pinnatifid, or Pinnate, 5-10 
cme long,the segments for the most part about ten, glabrous, generally oval 
or oblong, 5-2 or 3 om. long, entire or toothed (when long), terminal lobe 
commonly largest, entire, lobed or toothed, the lateral segments oval to 
q linear, pedicels subequal to or shorter than the blade; flowers in panicles, 
white; sepals 1.5 mm. long, the petals 2.5-3 mm. long, oblanceolate, pods 
ascending or erect, 2.5 cm. long, 1 mm. wide, acute; seeds thle romp 
15-20, scarcely 1 mn. long, oval. 
In shaded muddy strean bottoms, usually below 3000 feet; frequent. 
