POLYANDRIA POLYGYNIA. ThariCtrUm. 
38^ 
On the banks of ditches and. rivulets : Pensylvania and 
Virginia. 7/. Jane — Aug. v. v. A tall species j 
flowers white. 
5. T. caule foliis duplo altiore, foliis compositis, foliolis purpurascens. 
subrotundis 3-fidis incisis, paniculis nudiusculis, flo- 
ribus cernuis, staminibus coloratis. — IFilld. sp. pl. 2. 
p. 1299. 
On dry sunny hills: Pensylvania and Virginia. 7/. 
May, June. v. v. A small plant ^ stem and fllaments 
purple. 
6. T. foliis simplicibus 5-lobis serratis, floribus corymbosis. ranunculi^ 
— IVilld. enurrt. 585. num. 
In Carolina. IV'iUdenow. T/.+. Flowers resembling 
those of T. speciosum. 
459. HYDRASTIS. Gen. pl. 958. 
1. H, caule superne opposite diphyllo, foliis petiolatis basi canadensis, 
emarginatis palmatis serratis incisis, pedunculo termi- 
nali solitario uni floro.— sp. pl. 2. p. .1340. 
Icon. Mill. ic. t. 285. 
In shady woods, on fertile soil and among rocks : Cana- 
da to Carolina, principally in the Allegany mountains. 
7/. April, May. v. v. Flowers pale rose-coloured ; 
berry red. The roots are yellow, and afford a fine dye. 
460. BRzVSENIA. Gen. pl. 988. 
Hydropeltis. Mich.Ji.amer. l.p. 323. 
1, B. foliis centro peltatis ovalibus integerrimis, pedunculis peltata. 
solitariis unifloris. 
Hydropeltis purpurea. Mich.fi. amer. 1. p. 324. t. 29. 
Icon. Bot. mag. II47. Pluk. aim. t. 34g.f. 3. 
In lakes and slow-flowing waters : New Jersey to Ca- 
rolina. 7/. June — Aug. v.v. Floating on the win- 
ter ; the whole plant has a purple colour ; the flowers 
dark purple, the size of Caltha-, the petioles and under 
surface of the leaves are covered with a transparent 
gelatinous substance, 
461. CALTHA. Gen.pl.g57. 
1. C. caule erecto unifloro unifolio, foliis radicalibus cor- ficarioides. 
dato. ovatis obtusissimis paucidentatis multinervibus, 
petalis ellipticis. 
