RAITUNCULTJS. W 



than ped. Inner edge of carp, nearly straight. — Streams and 

 ponds, but not common. P. Vl.— VIII. E. S. I. 



,, ,,, . tt Receptacle not hispid. 



11. R. fAitam (Lam.) ; 1. all suhmeraed about twice trifur- 

 cate with very long linear twice or thrice, forked nearly parallel 

 segments, ped. tapering, fl. large, pet. broadly obovate many- 

 veined contiguous persistent, stam. falling short of pintils, stig. 

 cylindrical, receptacle conical, carp, obovate inflated much 

 rounded at the end laterally apiculate. — H. B. S. 2870. — St. 

 Submersed, usually very long. Petioles and segments of 1. often 

 very long, together a foot in length. Stip. broadly lanceolate. 

 Bads shortly pyriimidal, pentagonal. Pet. often more than five. 

 Stam. very short, many. Inner edge of carpels slightly rounded. 

 — 13. R. Bachii (Wirtg.) ; slender, 1. short almost sessile finely 

 divided, pet. narrowly obovate. — ^Rivers. /3. rare. P. VI. VII. 



E. S. I. 



*** No divided submersed leaves. Receptacle not hispid. 



12. R. Lenorman'di (Schultz) ; 1. all roundish cordate with 

 ;.{ — 5 rather deeply divided lobes which mden from their hose, pet. 

 exceeding cal., style terminal upon the ovate-conical ovary, carp, 

 unequally obovate with a terminal point. — E. B. S. 2930. R. 

 ccendsus Bab. (not Guss. ?). — St. floating or creeping upon mud. 

 L. not spotted ; lobes very broad at the top, mostly with 2 — 3 

 notches. Upper stip. very broad, J-adnate. Pet. narrow, obo- 

 vate, 5-veined. Stam. 8 — 10. Style nearly central on the 

 ovary and usually so on the carpel. Inner edge of carp, much 

 rounded towards the top. — Shallow ponds or mud. P. VI. — 

 vm. E. S. I. 



13. R. hederdceus (L.) ; 1. roundish cordate with 3 — 5 

 shallow rounded lobes widening to their base, pet. scarcely ex- 

 ceeiiag aaX.,. style prolonging the inner edge of the ovary, car^. 

 j-oval or j-obovate with a lateral point. — St. floating or creep- 

 ing upon mud. L. usually spotted; lobes usually entire or 

 with a central notch, often rather triangidar. Stip. narrow, 

 much adnate. Pet. narrow, 3-veined. Stam. 6—8. Style 

 lateral upon both ovary and carpel. Inner edge of carpel nearly 

 straight. — Shallow ponds or mud. P. \1.— IX. E. S. I. 



B, Fr.-st. straight; carp, transversely wrinkled on the middle of 

 edch'side, basally attached, nectary naked. 



14. R. scelerdtus (L.) ; root fibrous, lower 1. stalked tripartite, 

 segments blunt crenate, upper 1. trifid linear entire or incise-den- 

 tate, calyx reflexed, Aea<Z iffr- oJfo'% carp .minute. — R.. iii. 11. — 

 Fl. very small, pale yellow. Nect. roimd, open, bordered all 

 round, rarely not bordered above. Lower 1. broad, glabrous, 



b5 



