Mr. Benruam’s Review of the Order of Hydrophyllee. 273 
2. H. cANADENSE (Linn. Spec. 208.), foliis palmato-lobatis angulatisve, florum 
cymis laxis, calycibus glabris. 
H. canadense. Bot. Reg. iii. t. 242. 
Folia late rotundata, utrinque glabra vel pilis raris hispida, lobis vix ad medium 
folii attingentibus, margine dentibus paucis argutis notata. Pedicelli ca- 
lyce plerumque breviores. (v. s. sp.) 
From Canada and Pennsylvania. 
3. H. vireintcum (Linn. Spec. 208.), foliis pinnatisectis, segmentis inciso-den- 
tatis, florum cymis laxiusculis, laciniis calycinis anguste linearibus ciliato- 
hispidis. 
H. virginicum. Bot. Reg. iv. t. 331. 
Folia supra pilis sparsis hispidula, subtus pallida, glabra; segmenta 2—3- 
juga, inferiora subpetiolulata, suprema cum terminali scpius confluentia. 
(v. s. sp.) 
Received from Pennsylvania from Dr. L. de Schweinitz. 
4. H. caPrrarUM (Dougl. MSS.), foliis pinnatisectis, segmentis inciso-denta- 
tis, lorum cymis densissimis, laciniis calycinis lanceolatis ciliato-hispidis. 
(v. s. sp.) 
Found by Mr. Douglas, in 1826, in fissures of moist rocks in the interior 
of Columbia in North-west America. "These specimens have the leaves hispid 
on both sides, the segments but little divided, and narrowed at their base. 
In other specimens, gathered in shady moist woods on the north-west coast, 
named H. celestinum by the same collector, the leaves are larger, with broader 
segments, much more cut, and the flowers fewer, differences naturally attri- 
butable to the locality. Again, the same plant occurs in the Californian col- 
lection, but with the leaves much more hispid on the upper surface; and 
covered with a whitish down underneath. 
IL. Exuuista. Linn, Gen. i. 97. 
Calyces exappendiculati. Squame corollince 10, breves, vel nullae. Stamina 
corolla subbreviora. Placenta maxime, dorso liberze, ovarium implentes, 
2-ovulatze. 
