8 EANUNCULACEJE. (CEOWFOOT FAMILY.) 



ions ; or sometimes rooting in tlie mud, ■with tlie emersed loaves kidney-shapeS 

 or round and variously lobed or cleft ; petals 5-8, much larger than the calyx ; 

 carpels in a spherical head, pointed with a straight beak. (E. multifidus, Pursh, 

 Bigel. R. lacustris, Sec/c.) — Stagnant water ; most common northward. May- 

 July. — Stems 2° - 4° long, round and tubular. Petals bright yellow, mostly as 

 large as in the common Buttercup. 



H- -1- Terrestrial : pei-ennial, except Nos. 6 and 9, wTiicJi are at hast sometimes 



annual. 

 •*+ Leaves all undivided : plants glabrous. 



3. K. alisniaefolius, Geyer, Benth. (Watek-Plantain Speak- 

 WOKT.) Stems hollow, ascending, often rooting from the lower joints; leaves 

 lanceolate, mostly denticulate, the lowest oblong, all contracted into a margined 

 petiole with a membranaceous dilated and half-sheathing base ; petals 5-7, 

 much longer than the calyx, bright yellow ; carpels flattened, pointed with a long 

 and straight subulate sharp beak, collected in a globular head. (R. Pl.immula & 

 R. Lingua, Amer. authors. ) — Wot or inundated places ; common northward. 

 June -Aug. Stems 1°- 2° high. Leaves 3' -5' long. Flower 5" - 6", in Ore- 

 gon and California 7" -9", broad. Cai-pels much larger than in the next. 



4. B. FiiiniTnula, L. (Speakwokt.) Stem reclining or ascending, 

 rooting below; leaves lanceolate or linear, or the lowest oblong-lanceolate, en- 

 tire or nearly so, mostly petioled ; petals 5-7, much longer than tlie calyx, 

 bright yellow ; carpels turgid, mucronate with a very short and usually curved blunt 

 point, fonning a small globular head. — Shore of L. Ontario (a small form) ; 

 thence northward. June-Aiig. Corolla 4"- 6" broad. (Eu.) 



Var. I'eptailS. (Ceeepikg Spearwokt.) Much smaller and slenderer ; 

 the filiform prostrate stems rooting at all the joints. (R. reptans, L. R. fili- 

 formis, Michx.) — Gravelly or sandy banks of sti'eams, &c. New England and 

 Penn. to Wisconsin, northward. Stems 4' - 6' long. (Eu.) 



5. K. pnsillns, Poir. Stem slender, ascending ; root-leaves ovate or round- 

 ish, obtuse, entire, often rather heart-shaped, on long petioles ; the lower stem- 

 leaves similar; the uppermost becoming linear-lanceolate, obscurely toothed, 

 scarcely petioled ; petals 1-5, commonly S, about as long as the calyx, yellowish ; 

 stamens few (5-10) ; carpels slightly pointed or blunt, in a globular head. — "Wet 

 places, S. New York, New Jersey, and southward near the coast. July. — 

 Stems 5'- 12' high. 



6. K. Cymbalaria, Pursh. (Sea-side Ckoweoot.) Stem sending 

 off long runners from the base which are rooting and leafy at the joints ; leaves 

 all roundish, mostly heart-shaped at the base, coarsely creruite-toothcd, rather fleshy, 

 on long petioles ; flmuer-stalks [scapes] leafless, 1 - 7-flowered ; petals 5-8, bright 

 yellow ; carpels in oblong heads, very numerous, short-beaked, striate-veined on the 

 sides. — Sea-shore, Maine to New Jersey. Salt springs, Salina, New York. 

 June -Aug. — Scapes 3' - 6' high. 



■I-* ■>■<■ Root-leaves undivided, often cleft, but not to the base. 



7. B. rhoniboidens, Goldio. Dwarf, hairy; root-leaves roundish, or 

 rhombic-ovate, rarely subcordate, toothed or crenate ; lowest stem-leaves similar 

 or 3 - 5-lobed ; the upper 3 - 5-parted, almost sessile, the lobes linear ; carpels 



