6 1. RANUNCULACES. 
These varieties are considered as distinct species by some authors. 
—Ponds and ditehcs. P.? V. VI. 
2. R. confusus (Godr.) ; st. floating, submersed 1. as in No. 1, 
floating 1. 3-parted or ternate lobed, pet. elliptic-cuneate or obo- 
vate 5—7-nerved not contiguous with a short yellow claw, pistils 
exceeding the stamens, style short, stigma ligulate, carp. com- 
pressed 4-ovate narrowed upwards, receptacle conically ovate.— 
R. Petiveri Koch in St. 82. 2.—Stip. adnate nearly throughout. 
Submersed 1. not collapsing ; floatin, 1. glabrous beneath, lobes 
of segments rounded. Ped. narrowed at the top. Style prolong- 
ing the inner edge of the pistil. Receptacle scarcely thicker than 
peduncles. Cofyledons linear——Ou mud or in ditches occa- 
sionally brackish. A.? V.—VII. 
3. R. tripartitus (DC.); st. floating, submersed 1. wanting or 
as in No. 1, floating 1. subpeltate tripartite with triangular-obovate 
2—4-fid lobes, pet. oblong 3-nerved clawed, stam. exceeding the 
pistils, style long subulate, stigma small, carp. inflated unequally 
obovate blunt with a subterminal point, receptacle globose.— 
E. B.S. 2946.—Submersed 1. have not been found im England. 
Upper stip. free. Pet. small, pinkish. Cotyledons elliptical — 
Shallow ditches. Esher Common, Swrey; and Cornwall. Mr. 
Watson. Uaverfordwest, Pembr. A. V.—VIIL. E. 
4. R. ectreinatus (Sibth.) ; st. submersed ascending, |. all sub- 
mersed divided into numerous capillary 2—4 times forked rigid 
segments spreading in one plane, carp. semi-ovate compressed 
laterally tipped with the long acute incurved style.— FE. B. 8. 2869. 
R. in. 2. R. divaricatus, Koch.—L. with sheathing not anricled 
stalks, always small, remarkably flat and rigid with a circular out- 
lime. Fl. white. Pet. broadly obovate, many-nerved; claw 
yellow. Style prolonging the inner edge of the pistil. Stigma 
straight, lmear.—In ponds and ditches, not confined to stagnant 
water. P. VI.—VIII. ; 
5. R. fluitans (Lam.); st. floating, leaves all submersed re- 
peatedly 2—3-chotomous, segments elongated setaceous parallel, 
carp. obovate inflated much rounded at the end with a short 
straight lateral pomt.—HE. B. S$. 2870. R. in. 2. St. 67. 14.— 
L. remarkably long and upon very long stalks, together often 
1 foot or more in length. Fi. large, white. Pet. about 7-nerved ; 
claw yellow. Stigma cylindrical, straight, linear. Style prolong- 
ing the inner edge of the pistil. Upper stip. broad adnate nearly 
throughout. Very rarely a few terminal “ subtrifid truncate ” 
floating leaves are found.—In rivers and brooks, but not confined 
to running water. P. VI, VIL. 
.S. 
+t Receptacle not hispid. 
6. R. hederaceus (L.); st. floating or creeping, 1. all roundish 
