14 . RANUNCULACE. RANUNCULUS. 
od 
Sse 
R. Cymbalaria Pursh F. ii, 392. »Flowering* stems’3+6 inches leng,.1— 
7-flowered : leaves broadly oyate or ovate-cordate, coarsely crenate, cluster- 
ed at the base and joints of the long filiform rooting runners: petals yellow, 
2 lines long, longer than the sepals: mature achenes a line long, striate- 
veined on the sides, apex blunt, with a short oblique beak: heads oblong, 
2-6 lines long. In wet saline places; California to Alaska and the Atlantic 
States. | er sees 
§ 2 EuranuncuLus Gray l.c. Mature carpels crustaceous or 
firm-coriaceous, the sides nerveless. Petals usually yellow, with a 
nectariferous spot or pit and scale near the base. 
* Amphibious, the submersed leaves cut into numerous filiform di- 
visions: petals yellow, with a broad scale at the base: achenes with a — 
broad white caruncle. 
R. delphinifolius Torr. in Eat. Man. ed. 4, 424. ? Glabrous: annual: 
stems floating, a foot or two long: submersed leaves dissected into several- 
times forked capillary divisions; emersed leaves round or reniform, yari- 
ously lobed or cleft: peduncles stout, 2 inches or more long: petals 5-8, 4-6 
lines long, much longer than the sepals; scale 44 as long as its petal, inrol- 
led and its edges joined together for half its length:*achenes aha 
margined, and pointed with a stout curved beak. In ponds that are dry 
art of each year, Western Oregon and Washington. 
R. limosus Nutt. T. & G. Fl. i, 20. Subaquatic, soft-villous, procumbent : 
leaves reniform, palmately 5-cleft, the segments 2-3-toothed or somewhat 
lobed, the divisions blunt, short and shallow; stems 1-2-flowered: petals ~ 
3 lines long, rounded, longer than the sepals: achenes small, scarcely keel- 
ed, with a short,-nearly straight, subulate beak. Margins of brackish lakes, 
plains of Idaho and Utah. ' ; spat 
* * Subaquatic, with entire or merely denticulate or crenulate, peti- 
oled leaves; petals 5 or more; achenes in a globular head, subulate- 
beaked. 
R. reptans L. Sp. 549. R. Flammula var. reptdns Meyer Pl. Lab. 96. 
Stems filiform, creeping and rooting at the joints, 4-12 inches long: leaves 
lanceolate to linear, acute at both ends, glabrous, entire: flowers 2-5 lines 
wide ; petals obovate: achenes barely a line long, roundish-oyate, hipped 
with a slender curved beak. Common in wet places, Oregon to Alaska, New 
York and Canada. 
R. microlonchus Greene Eyth. iii, 122. Perennial, the rather lerge 
cluster of fleshy-fibrous roots supporting a tuft of erect lanceolate leaves 
anda single slender tortuous, often partly reclining, leafy and few-flowered 
stem: leaves all entire, acute at both ends, the radical 1-2 inches long, on 
slender petioles as long, narrowly lanceolate, nearly glabrous above, but 
rather densely appressed-pubescent beneath ; cauline few, relatively some- 
what broader, with short petioles or subsessile: flowers 1-several, yellow, 
4 lines broad: sepals spreading: petals 5-8, obovate, obtuse; achenes few, 
in a depressed-globose head, obliquely obovoid, slightly narrowed at base, 
tipped with a short stout blunt style, moderately compressed, marginless, 
smooth and glabrous. Collected Be E. L. Greene in N. Idaho, Aug. 1889. 
R. Unalascheensis Bess. in Ledeb. Fl. Ross. i, 32. R. Flammula var. 
intermedius Hook. Fl. i, 11. Stems decumbent and creeping, 4-12 inches 
long leaves ‘all lanceolate’ or linear-lanceolate; entire’ or’ nearly so, 1-2 
inches long, tapering below into the petiole: petals obovate, 2-3 lines long; 
achenes roundish-ovate, with a short oblique beak, in small globular heads. 
In wet places, Idaho to Alaska. ? 
R. samolifolius Greene Pitt. iii, 13. Stems several from a perennial 
root, weak, somewhat flexuous and half reclining, 6-10 inches long, leafy 
throughout, simple and 1-flowered or branched and several-flowered : her- 
