8 1. RANUNCULACE.E. 



halfway down, more than semicircular ; outer base of lateral 

 segments much rounded ; rarely with stalked segments. Stip. 

 broad, with a free rounded end. Fl. starlike. Stam. 20 30. 

 Style recurved. Receptacle as thick as peduncle. Inner edge 

 of'carp. nearly straight. Ponds. P. V. IX. E. 



3. R. penicilldtus (Hiern) ; submersed 1. loosely trifurcate 

 tassel-or whip-shaped subsessile, segments very long, floating 1. 

 long-stalked subpeltate ^-trifid or tripartite with obovate seg- 

 ments, each having two or three notches, ped. very long exceed- 

 ing the leaves, fl. large, pet. broad becoming obovate-cuneate 

 9- veined contiguous persistent, stam. many exceeding- the 

 pistils, stigma . . . ., receptacle spherical, carp. J-obovate very 

 blunt. B. penicil'atum (Dum.), R. pseudo-fluitans (ed. vi.). St. 

 wholly submersed. Floating 1. semicircular or broader than 

 long, outer base of lateral segments much rounded. Often theie 

 are no floating leaves, when it seems to be the B. aquatile, 

 ft. rivulare (Schur), R. pseudo-fluitans (Hiern). Submersed 1. 

 often 3 4 in. Ion*}- with the segm. tying close together almost 

 as in R.fluitam, flaccid and whip-shaped. In water, especially 

 streams. P. V. VIII. E. I. 



9. R. peltdtus (Fries) ; submersed 1. loosely trifurcate, seg- 

 ments rather rigid divaricate not tassel-like, floating 1. long- 

 stalked subpeltate nearly half 3 5-fid with obovate segments 

 having 2 or 3 notches, ped. tapering exceeding the leaves, fl. large, 

 pet. round becoming obovate-cuneate 9-veined contiguous per- 

 sistent, stam. many exceeding pistils, stigma clubshaped, recep- 

 tacle ovoid, carp, f -obovate very blunt. E. B. S. 2965. St. 67. 7. 

 B. truncatum Dum. Floating 1. ^-circular, convex, outer base 

 of lateral segments much rounded. Stip. adnate nearly through- 

 out. Fl. sweet-scented, very large. Stam. about 30. Style 

 curved. Receptacle small. Inner edge of carp, nearly straight. 

 - R. elongatus (Hiern !), B. elongatum (Schultz) has very much 

 longer ped. but otherwise does not seem to differ, except that 

 the l.-segm. are rather less rigid. In water and wet places. 

 P. V.-IX, E. S. I. 



10. E. tripartitus (DC.) ; submersed 1. loosely trifurcate, segments 

 very slender somewhat collapsing, floating 1. small deeply trifid with 

 rounded 2 5-lobed segments, the central usually as long as the lateral, 

 stip. roundish, upper free, ped. slender, about as long as the petioles, 

 ultimately recurved, fl. very small, pet. scarcely exceeding the cah, 

 stam. 5 8, stigma tapering, receptacle small roundish, carp, few obovate 

 inflated with a very small beak glabrous. E. iii. 2. A small slender 

 plant rasembling Sp. 11 but at once distinguished by the well-developed 

 capillary submersed 1., the rare submersed 1. of E. nitermedivs having the 

 segments flattened. Helston and Roche, Cornw. Baltimore, Cork 

 #r. E. A. Phillips. P. IV VI. E. 1. 



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