RANUNCTJLXJS. 7 



15 — 20. Style recurved. Receptacle thicker than ped., very 

 tall. Carp, very many. — Slightly brackish water or near the sea. 

 P. v.— YIII. 



6. R. Horibundus (Bab.) ; submersed 1. closely trifurcate, seg- 

 ments rather rigid divaricate not collapsing, floating 1. long- 

 stalked subpeltate i-trifid or tripartite with sessile obovate 3 — 5- 

 lobed segments, ped. not narrowed scarcely exceeding the 1., fl. 

 large, pet. obovate-cuneate 9-many-veined not contiguous per- 

 sistent, stam. many exceeding pistils, stig. tongue-shaped, recep- 

 tacle spherical, carp, i-obovate very blunt. — A. N. H. ser. 2. xvi. 

 397. — St. often rismg out of the water. Floating 1. convex, di- 

 vided more than halfway down, more than semicircular; outer 

 base of lateral segments much rounded. Stip. broad, with a free 

 rounded end. Buds depressed. Fl. starlike. Stam. 20 — 30. 

 Style recurved. Receptacle as thick as peduncle. Inner edge 

 of carp, nearly straight. — Ponds. P. V. — IX. E. 



7. R. peltatus (Fr.) ; submersed 1. loosely trifurcate, segments 

 rather rigid divaricate not collapsing, floating 1. long-stalked sub- 

 peltate nearly half 3 — 6-fid with obovate 3 — 4-crenate segments, 

 ped. narrowing gradually from floating I. and exceeding them, 

 fl. large, pet. round becoming obovate-cuneate 9-veined contigu- 

 ous persistent, stam. many exceeding pistils, stigma club-shaped, 

 receptacle ovate, carp. J-obovate very blunt. — St. 67. 7- — St. often 

 rising out of the water. Floating 1. f-circular, convex, outer 

 base of lateral segments much rounded. Stip. adnate nearly 

 throughout. Buds globular. Fl. sweet-scented, very large. 

 Stam. about 30. Style curved. Receptacle small. Inner edge 

 of carp, nearly straight. Rarely a fl. springs with a divided leaf. 

 —Ponds. P.'V.— IX. E. 



8. JR. tripartitus (DC.) ; " submersed 1. divided into capillary 

 segments collapsing," floating 1. long-stalked subpeltate deeply 

 trifid with cuneate-obovate 2 — 4-fid segments, ped. not narrow- 

 ing falling short of 1., fl. very small, pet. oblong 3-veined not 

 contiguous, stam. few exceeding the pistils, stig. small on long 

 subulate terminal style with a slender base, receptacle globose, 

 carp, unequally obovate much inflated with a nearly terminal 

 point. — E. B. S. 2946. — St. rising out of the water. Floating 

 1. f-circular ; outer edge straight below ; lateral segments with 

 3, middle with 2—4 crenatures. Upper stip. free. Buds glo- 

 bular. Pet. very small, scarcely exceeding sep., pinkish. Stam. 

 6 — 10. Style deciduous. Receptacle globose. Inner edge of 

 carp, much rounded. No divided 1. have been seen in Britain. 

 —Streams. P. V.— VIII. E. 



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



9. R. circinatus (Sibth.) ; 1. all submersed and sessile trifurcate 



