CANADIAN EANUNCULACE^. S9 



R. Eschscholtzii. Schlechtendal, Animadversationes Rauunc, IL, p. 16, 1. 1. DC. Prod., 

 I., p. 35. Hook-, Fl. Bor.-Am.,I., p. 18. Torr. & Gr., Fl. N. Am., I., p. 21. 



Islands of Unalaschka and St. Greorge, N. W. America.— CAaffizsso. Near the regions 

 of perpetual snow, on the borders of streams upon the Eocky Mountains, lat. 52' to 56". — 

 Driimmond. Pine River Pass, Rocky Mountains, 24th July, 18*79.— Dr. G. M. Dawson, in 

 Herb. Canad. Survey. Top of Mount Selwyn, Peace River Pass, lat. 5Q\—Macoim. Rocky 

 Mountains near the 49th parallel ; and the TsiT.sutl Mountains and Coast Range, B.C. — 

 Dr. G. M. Dawson. Kotzebue Sound to Cajie Lisburne. — Rothrock. 



28. — Ranunculus Pallasii, Schlechtendal. 



Stem creeping, fistulous ; leaves all petioled, divided into three oval, obovate or 

 cuneate lobes ; calyx of 3 sepals ; corolla of 8 petals ; carpels in a round head, thick, ovate, 

 glabrous, beaked. Allied to Ficaria in its triphyllous calyx, and in having more than 5 

 petals . — Schlecht. 



Ranunculus Pallasii. Schechtendal, Animadversationes Ranunc, I., p. 15, t. 2. Spreug. 

 Syst. Veg.,II., p. 649. Hopk., Fl. Bor.-Am., I., p. 10. Don, Mill. Diet., p. 32. Torr. & 

 Grray., Fl. K Am., I., p. IT. Ledebour, Flora Rossica, I., p. 31. Ascherson, Fl. Lab., in 

 Flora, XLIII., p. 369. Hook, f., Arct. Pts., p. 283. Watson, Bibl. Index, p. 22. Macoun, 

 Cat., No. 53. 



On the western shores of extreme Arctic America, beyond Behring Straits, namely 

 in the Bays of Eschscholtz and Grood Hope ; and on the little Island of St. Greorge, to the 

 north of the Aleutian Islands. — Chamisso. Kotzebue Sound. — Rothrock. Labrador. — Hook, 

 fil. Griven in Sir Joseph Hooker's table of Arctic Distribution as occurring in the follow- 

 ing areas, viz. ; — Arctic Europe, Arctic Asia, Arctic W. America ; also within the area of 

 " N. E. Asia and Japan," and " N. W. America" ; confined, however, in the N. E. American 

 area to Labrador. 



29. — Ranunculus Hookeri, Regel. 



Leaves minutely pubescent ; radical ones petioled, jialmately or pedately divided, 

 with the lobes linear and entire (obtuse). Scape erect, nearly naked, 1 — 2 flowered. 

 Sepals oval, concave, spreading, hairy. Petals yellow, slightly longer than the sepals. 

 Plant 3 to 4 inches in height. Fruit not known. 



Ranunculus Hookeri. Regel, Fl. Ost.-Sibir., I., p. 4*7, (1862). "Watson, Bibl. Index, I. 

 p. 19. Macoun, Cat., No. 43. 



R. peclatifidus. Hook., Fl. Bor.-Am., T., p. 18, t. 8, fig. B., (excl. syn.) Torr. & Grr., Fl. 



N. Am., p. 21. 



Barren summits of the Rocky Mountains, on the eastern side of the ridge, lat 52" to 



55°. — Drummond. 



30. — Ranunculus acris, Linnœus. 



Root fibrous. Radical leaves palmately tripartite, segments trifid and deeply cut, upper- 

 most stem-leaf tripartite with linear segments. Peduncles round, not furrowed. Sepals 



