ax Ce Lyallii Wats. Stems erect, 50-50 cm. tall from a slender, 
creeping rootstock 1.5 mme in diameter, glabrous throughout; leaves all simple, | 
a a alia tat ete elk aie a ee 
|. Cardamine L. 
Low, mostly glabrous perennials. Leaves Simple or more commonly 
irregularly pinnatifid, the terminal lobe largest. Flowers in racemes or 
panicles, white or purple. Sepals more or less erect. Petals obovate to 
narrowly spatulatey, Pods linear, straight, more or less flattened P -) 
to the partitions, valves veinless. Seeds in one row, neither maredy od or 
winged id ; ‘3: ica ng 
o Leaves all simple, rotund-reniform 
2 Stems 30-50 cm. tall; flowers 8 mm. long ‘det. Lyallai 
2 Stems 10-20 cm. tall; flowers 4 mm. long 2. C» Leiber a 
o Leaves (at least the lowermost) pinnatifid 
< Upper leaves simple or rarely 3-foliolate 
4 Plants with slender rootstocks, the leaves 
g mostly entire ae, Ce Leibergii 
4 Plants wishout rootstocks, the leaves 3=7 
S foliolate 3. C. Breweri 
2 Upper leaves similar to the lower, all pinnatifid 
4 Basal leaves generally in a conspicuous 
rosette; leaflets all mors or less Similar, 
subrotund in otline; pods with 10 seeds or 
ewer 4, C- olizgosperma 
—— 
wn i ae 
Basal leaves approximate but hardly forming a 
rosette, leaflets diverse, oval in outline 
& < the terminal commonly much larger, pods 
with 15-20 seeds 
5, Ce ‘pennsylvan ios 
rotund-reniform or broadly ovate; deeply cordate at the base, irregularly ' 
simately toothed or nearly entire, blades 3-8 cm. broad, petioles subequal 
or sanewhat shorter, only the lowermost longer; flowers white, sepals 3 mn. 
long, scarious toward the tip, petals 8 mm. long, spreading, retuse at the 
apex; pedicels slender, 5-6 mme long which lengthen to 2 cm. in fruit; pods 
erect or ascending, 3 cm. long, scarcely 1.5 mm. wide, attenuate to the style w 
about 2 mme long, narrowed toward the bases seeds tee e—stepie—nowy oval, 
slightly more than 1 mn. long, about 10 in a pod. 
Upper St. Joa River along bank at foot of cliff in a very moist place; 
Epling emd Putnan and Dennisy 10300; Vanderbilt Gulch, Epling and Kempf. 
ms 
