rd 
a“ J. Ranunculus L. Buttercup e 
qw Annual or perennial herbs, aquatic or of moist places. Leaves basal and 
iq alternate, some rarely Opposite, petioles sheathing at the base, blades a 
commonly ternately divided or lobed, the segments filiform in floating aquatic 
speciese Flowers solitary or in terminal cymes, yellow (or white), Sepals 
usually 5, deciduous or persistent, recurving. Petals 5-16 (in some species 
2-5) provided with a small nectariferous pit near the base, this naked or “= 
covered with a scale. Stamens numerous. Pistils mumerous. Fruit a globose » 
or cylindrical cluster of turgid or compressed achenes, which are tipped by. oan ‘ 
the permanent characteristic styles. 2 Ee eee 
0 Plants submerged in water ,the leaves dissected into 
4 filiform segments or with a few floating leaves 
a Segments of submerged leaves hairlike, not 
() eee flowers white; achenes transversely 
wrinkled, not margined 
2 Segments of submerged leaves flattened, or #f grow- 
ing in mad, the leaves 3-lobed to the base, the 
(, ( lobes again lobed or toothed above the middle; - 
flowers bright yellow; achenes not wrinkled but as. 
. with a calloused margin 
D. Re delphinifolins4 
O Plants terrestrial, leaves of one kind only, but var- a 
4 iable in shape i 
2 Plantsstoloniferous, rooting at the nodes, creep- 
q) ( ing over muddy places 
+ Leaves entire or crenately tootned, not lobed 
e aap 
~ Leaves cordate at the base; achenes in a 
‘> Cylindrical cluster 8 
8, Re Cymbalaria 
» Leaves narrowed at the base; achenes in a 
‘> globose cluster 4. Se reptans 
-\ Leaves palmately 3-5-lobed, the lobes again 
+ toothed 3. Xe lLimosus 
—_— 
mm 
Z, Ylants not stoloniferous, erect, 
All leaves simple, crenate or entire, neither 
4 lobed nor divided 
ee ee ee 
Slants 60-40 cm. tall, stiffish, with 2-3 
eairs of opposite leaves in tne ix 
- florescence 
@ 
t 
¢. 8+ alismaefolius 
