8 
1. BANTrrrCtTLACE-E. 
carp, unequally ohovate much inflated witli 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 
middle witli 2 — 4 crenatm'es. Upper stip. free. Buds glo- 
bular. Pet. very small, scarcely exceeding sep., pinkish. Stam. 
5 — 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 not hispid. 
9. H. circinutus (Sibtli.) ; 1. all submersed and sessile trifurcate 
with repeatedly and closely forked rigid segments aU placed in 
one roundish plane not collapsing, ped. much naiTowing exceed- 
ing 1., fl. large, pet. obovate many-veined nearly contiguous per- 
sistent, stam. exceeding pistils, stig. cylindrical, receptacle ob- 
long, carp. |-ovate compressed rather acute. — E. B. S. 2869. — 
St. submersed. 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 conmion. P. V I. — Vlll. E. S. 
^ 10. R.Jltntatis (Lam.) ; 1. aU submersed about twice trifur- 
cate with vei-y loiig linear twice or thrice forked nearly parallel 
segments, ped. narro'W'ing, fl. large, pet. broadly obovate many- 
veined contiguous persistent, stam. falling short of pistils, stig. 
cylindrical, receptacle conical, carp, obovate infl ated much rounded 
at the end laterally apiculate. — E. B. S. 2870. — St. submersed, 
usually very long. Petioles and segments of 1. often verj^ long, 
together a foot in length. Stip. broadly lanceolate. Buds shortly 
pyramidal, pentagonal. Pet. often more than Ave. Stam. very 
!»hort, many. Inner edge of carpels slightly rounded. — Rivers. 
P. VI. VII. E. S. 
•** No submersed leaves. Receptacle not hispid. 
11. JR. cocnosus (Guss.) ; 1. all roundish cordate with 3 — 5 
rather deeply divided lobes which ividen from their base, pet. ex- 
ceeding cal., style terminal upon the ovate-conical ovaiy, carp, 
unequally obovate with aterminal point. — B. LenormandiE.H.ts. 
2930. — St. floating or creeping upon mud. L. not spotted; 
lobes very broad at the top, mostly with 2 — 3 notches. Upper 
stip. very broad, |-adnate. Pet. narrow, obovate, 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.— VIII. E. 
12. B. hederdceits (L.) ; 1. all roundish reniform with 3 — 5 
shallow rounded lobes widening to their io.sv, pet. scarcely ex- 
ceeding cal., style prolonging the inner edge of the ovary, carp. 
