RANUNCULACE*. 7 



7. R. affl'nis, E. Br. (HouGH-FBUiTED C.) Taller than 

 No. 6, more or less pubescent. Eoot-leaves petioled, usually 

 pedalely multifid ; stem-leaves nearly sessile, with broadly 

 linear lobes. Petals light-yellow, about half an inch long. 

 Achenes, with recurved beaks, forming an ohlong head. — 

 N. W. 



8. R. aborti'VUS, L. (Smau^flowdbed 0.) Petals shorter 

 than the reflexed calyx. Stem erect, very smooth, slender. 

 Radical leaves roundish, crenate, petiolate ; stem-leaves 3-5- 

 parted, sessile. Carpels in a globular head, each with a, 

 minute curved beak. — Shady hill-sides and wet pastures. 

 Var. mieranthUS, Gray, is pubescent, with more slender 

 peduncles and fewer achenes. 



9. R. seelera'tUS, L. (Cubsed C.) Petals about the same 

 length as the calyx. Stem thick, hollow, smooth, Radical 

 leaves 3-lobed ; stem-leaves 3-parted, uppermost almost 

 sessile. Head of carpels oblong. — Wet ditches. 



10. R. reeurva'tus, Poir. (Hooked C.) Petals shorter 

 than the reflexed calyx. Stem hirsute, with stiff spreading 

 hairs. Radical and cauline leaves about alike, long-petioled. 

 Head of carpels globular, each with a long recurved beak. — 

 Woods. 



11. R. Pennsylvan'ieus, L. (Bristly C.) Petals not 

 longer than the reflexed calyx. Stem hirsute. Leaves ter- 

 nately divided, divisions of the leaves stalked, unequally 

 3-oleft. JSead of carpels oblong, achenes with straight beaks, 

 and so easily distinguished from No. 10. — Wet places. 



12. R. his'pidus, Michx. Resembling the last species, 

 but with few-leaved ascending or reclining stems, not always 

 hirsute. Boot a cluster of stout fibres. Calyx hardly 

 reflexed, soon deciduous, much shorter than the petals. 

 Achenes strongly margined, with straight beaks ; in a 

 globular or oval head. — Wesley Park, Niagara. 



13. R. septentriona'lis, Poir. Petals much longer than 

 the calyx. Early-flowering stems ascending, putting forth 

 long runners during the sum,mer. Leaves temate, divisions 



