2946.
RANUNCULUS tripartitus.
Three-lobed Crowfoot.
POL YANDR1A Polygynia.
Gen. Char. Calyx of 5, rarely 3 leaves. Petals 5 or more, with a nectariferous pore at the base.
Pericarps without awns.
Spec. Char. Stem floating. Submersed leaves (when present) divided into capillary segments spreading
in all directions; floating leaves subpeltate,
tripartite ; segments triangular-obovate, 2-4-fid. Carpels unequally obovate, blunt, with a subterminal
point. Receptacle setose.
Syn. Ranunculus tripartitus. DeCand. Icon. PI.
Gall. Rar. 15. t. 49; FI. Frang. v. 5. 637. Duby
Bot. Gall. 8. Gren. et Godr. FI. France, v. 1.20. R. tripartitus a. micranthus. DeCand. Syst. v. 1.
234. “ Godr. in Mém. de la Soc. de Nancy,
R. 1i8n3n9o.m 8in.”atus. Bond. Cat. of Brit. Plants (name
only). 1. n
S t e m floating or creeping, slender, slightly furrowed, a
little branched, rooting at the joints. Leaves, in our plant,
all floating, subpeltate, deeply divided into three triangular-
obovate segments ; the lateral with 2 or 4, the intermediate
segment with 3 terminal crenas. Submersed leaves on foreign
specimens divided into numerous capillary segments spreading
in all directions, as in It. aqualiiis. Upper stipules free, i. e.
only attached at their base, not adnate to the petiole. Peduncles
opposite to the leaves, scarcely so long as the petioles.
Flowers small. Sepals blunt, boat-shaped, dark green with a
tinge of purple, furnished all round with a narrow whitish
diaphanous margin. Petals as long as or a little longer than
the calyx, obovate, rather acute, much narrowed and slightly
yellow below, with three distant veins. Nectary with an elevated
border on the lower side only. Stamens few, 5 to 10,
taller than the pistils. Style long, terminal, subulate, slender
at its base, deciduous. Carpels glabrous, inflated, whitish