RANUNCULUS. 9 



11. R, lutdrius (Bouv.) ; divided I. rare rather rigid not 

 collapsing, floating or aerial, floating 1. subpeltate deeply tritid 

 with cimeate-obovate 2 4-fid lobes, pet. scarcely exceeding the 

 cal., style subulate terminal with a slender base, carp, unequally 

 obovate much inflated with a nearly terminal point. R. tri- 

 partitus E. B. S. 2946 [not DC.]. R. intermedius, ed. viii. St. 

 usually suberect, aerial. L. f-circular, lateral lobes with 3, 

 middle with 2 4 crenatures. Upper stip. free. Pet. pinkish. 

 Stam. 5 10. Style deciduous. Inner edge of carpels much 

 rounded. Sometimes the petals are longer and 5-veined. 

 Damp ground and wet ditches, rare. A. V. VIII. E. 



[R. ololedcos (Lloyd) having larger wholly white fl., a pro- 

 minent nearly terminal beak to the obovate carp, and rare rigid 

 not collapsing submersed L, should be looked for.] 



** Submersed 1. not as in Section *. t Receptacle hispid. 



12. R.circindtus (Sibth.) ; 1. all submersed and sessile trifur- 

 cate with repeatedly and closely forked rigid segments all placed 

 in one roundish plane not tassel-like, ped. tapering exceeding 1 , 

 fl. large, pet. obovate many-veined nearly contiguous persistent, 

 stam. exceeding pistils, stig. cylindrical, receptacle oblong, carp, 

 ^-ovate compressed rather acute. E, B. S. 2869. St. sub- 

 mersed. L. sheathing, not auricled, forming a flat rigid disk. 

 Buds flattened at the top. Stam. 15 20. Receptacle narrower 

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

 ponds, but not common. P. VI. VIII. E.S.I. 



ft Receptacle not hispid. 



13. R. fluitans (Lam.) ; 1. all submersed about twice trifur- 

 oate 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 pistils, stig. 

 cylindrical, receptacle conical, carp, obovate inflated much 

 rounded at the end laterally apiculate. E. B. S. 2870. St. 

 submersed, usually very long. Petioles and stout segments of 

 1. often very long, together a foot in length. Stip. broadly lan- 

 ceolate. Buds shortly pyramidal, pentagonal. Pet. often more 

 than five. Stam. very 'short, many. Inner edge of carpels 

 slightly rounded. /3. R, Bachii (Wirtg.) ; slender, 1. short al- 

 most sessile finely divided, pet. narrowly obovate. [y. ? cambricus 

 (R. aquatilis var. cambricus Ar. Benn.); email and slender, fl. small, 1. with 

 few short segm.] Rivers. j3. rare. [y. Coron Lake, Anglesey.] p. 

 VI. VII. E. S. I. 



