FLOWERING PLANTS. pa 
very seldom produced, and soon decaying. Peduncles short, about 
as long as the leaves opposite to which they spring, slender, not 
narrowed, bent at the base after flowering, the upper part remain- 
ing nearly straight. Petals not much longer than the calyx, white, 
yellow at the base, spreading like the rays of a star. Carpels 
resembling those of R. heterophyllus, but smaller, more inflated at 
the apex, less strongly wrinkled and more hispid. 
This sub-species differs from the last by being much more 
slender, and having smaller flowers; but some of the states of 
R. heterophyllus without floating leaves approach it very nearly. 
Sus-Species IV.—Ranunculus trichophyllus. Chai. 
Puate XXII. 
Lab. Ann. Nat. Hist. ser. ii. Vol. XVI. p. 390; and Man. Brit. Bot. ed. v. p. 5. 
Gr. & Godr. Fl. de Fr. Vol. I. p. 23. Boreau, Fl. du Cent. de la Fr. ed. iii. 
Moly ED po 12. 
Submerged leaves trifurcate, afterwards repeatedly bifurcate. 
Segments short, divaricate, comparatively rigid, not collapsing. 
Floating leaves very rarely produced, tripartite or ternate. 
Segments wedge-shaped, truncate, cut or toothed at the apex. 
Flowers 4 inch in diameter. Petals oblanceolate, 5- to 7-veined, 
not contiguous. Stamens 8 to 15. Carpels half-ovoid, compressed, 
not inflated at the apex. 
In ponds and ditches; occasionally in brackish water. Pro- 
bably common. 
England, Scotland. Perennial. Spring to Autumn. 
Stem rather slender, branched, floating. Stipules broad, mem- 
branous, whitish, with short, free, rounded auricles. Submerged 
leaves blackish-green, the lower ones shortly stalked, the upper 
sessile. The three primary segments not conspicuously stalked ; 
intermediate one a little shorter than the others, and pointing in 
the same direction with them. Floating leaves? (only observed in 
a plant which seems to belong to this sub-species, collected near 
Chichester by the late Mr. Borrer, but of which I do not possess 
specimens) somewhat resembling those of R. heterophyllus, but not 
occupying nearly so great a part of a circle, and with the segments 
much narrower, not contiguous, separated by a broadly triangular 
sinus, or of 3 stalked wedge-shaped leaflets. Peduncles short, about 
as long as the leaves opposite to which they spring, rather stout, 
arched after flowering, but with the curvature greatest towards the 
base. Petals about half as long again as the calyx, white, yellow 
at the base, spreading like the rays of a star. Carpels resembling 
those of R. Drouetii, but more compressed, and much less inflated 
at the apex. Plant often slightly hispid. 
