12 RANUNCULACE^. [Rajmnculus. 



sent it to me from Long Island, and Dr. Boott from near Salem, Massachussetts, whicli is perhaps its farthest 

 limit south. Amman's figures, from Siberian specimens, are admirably characteristic of our plant, which 

 scarcely varies but in its greater or less size, and in the greater or lesser number of teeth to each leaf. But 

 his and Gmelin*s synonym are quoted by Smith, in Bees' Cyclopcedia, under B. salsuginosus ; and, certainly, 

 according to Jacquin's figure of salsuginosus, in Hort. Vindob. v. 3. #. 31, (suh. nom. It, ruthenici^ it is very 

 closely allied to our Ci/mbalarta. His whole plant is indeed larger, the leaves 3 or 5-toothed at the ex- 

 tremity, and the heads of capsules are globose. The general hahit is similar in both ; the flowers alike in 

 structure; the carpels are in both distinctly marked with longitudinal elevated lines. The hlossoms of ours 

 are about one-third of an inch in diameter. Pursh cannot, therefore, be deemed correct when he says that 

 those of salstiginosits of Pallas in Herb. Lamb. " are ten times as large." 



Again, the more alpine state of our plant, such as it is found by Mr. Drummond upon the Rocky Moun- 

 tains, (that is, smaller, with rarely more than 3 large teeth at the extremity of the oblong leaves, and with 

 never more than one flower upon the scape,) approaches so near to the R. halopJiilus of Schlechtendal from 

 Siberia, that I can hardly persuade myself that the two plants are distinct. The latter diifers, as it appears 

 to me, only in the more cuueate form of its foliage, for as to the teeth, they vary from 3 to 5, which numbers 

 are frequent upon the smaller leaves of the larger variety. Our plant, too, has much affinity with R, tri- 

 dentatus and nubigemis of Humboldt; and these, with R, JiageUiformis of Smith, in Rees* Cyclopaedia, 



seem to form a small and very distinctly marked family. Smith justly compares the runners to those of the 

 garden strawberry. 



3. R, rhomhoideus ; pubescenti-hirsuta, foliis radlcalibus rhomboideis integrls serratis, 

 caulinis palmatis, floralibus profunde laciniatis, calyce patente piloso. — Goldie in Edin. 

 Phil Joiim. V. 6, p. 329. t 11. / 1. BicL in Frankl. \st. Journ. ed. 2, Jpp. p, 23. — R. 

 ovalifolius. Pursh in Herb, Lainb. (fide Ilicliaidson.) 



Hab. Lake Simcoe, Upper Canada. Goldie. In the central limestone and prairie districts, from Canada 

 to lat. 370. Common in the western parts of Canada. Dr, Richardson. — This species seems to be very 

 constant to Its character, nor have I found the shghtest variation in any of the root-leaves. The heads of 

 fructifications are rounded. Carpels roundish, slightly compressed, glabrous, and smooth, with an extremely 

 short and very imperfect, more or less curved style or mucro. 



6. R. glahcrrimus ; foliis omnibus petiolatis, radicalibus subrotundis integerrimls vel 

 grosse tridentatis, caulinis subcuneatis trifidis, calyce patente petalis dimidio breviore, 

 fructibus globosis. (Tab. V. A.) 



Radix fasciculato-fibrosa. Tata planta hirsutie destituta. Caidis erectus, subspithamieus, superne uni-bi- 

 trifloms. Folia omnia (nisi supernum quod subsessile,) petiolata, subsucculenta : radicalia subrotunda, In- 

 tegra, atque oranino iutegerrima vel apice dentibus trlbus grossis obtusis : caulina cuneata, fere ad medium 

 trifidum : segmentis lanceolatis, obtusis, integris. Pedunculus et cal^x etiam glaberrimi. Sepala ovalia, con- 

 cava, patentia, non reflexa, corolla duplo breviora. Petala 5, ovalia, flava. Fructus, vix maturus, globosus. 



Hab. Common on the mountains around the Kettle Falls, and on the Rocky Mountains, near the limits 

 of perpetual snow, Douglas.— "ThX^ differs from all its congeners by its entirely glabrous stem, leaves, and 

 calyx, by its entire or only 3-toothed, rounded, radical leaves, and by the petiolated, never more than trifid, 

 cauline ones. The whole plant has a succulent appearance, and turns almost black in drying. I have seen 

 it in no collection but that of the indefatigable Douirlas. 



7. R. affinis; foliis radlcalibus (plerumque) pedato-multifidis petiolatis, caulinis subses- 

 silibus digitatis, lobis omnium linearibus, caule erecto 1-2 (multi) floro cum calycibus 

 ovariisque (an semper?) pubescentibus, fructibus oblongo-cylindraceis, acheniis rostro re- 

 curve. Br. (Tab. VI. A.) 



