Ranunculus.] EANUNCULACE.^. 17 



608. Newberry, Pac. "R. Rep. 6. 65. Hook, f., Arct. PI. 283 & 311. Chapman, 7. 

 PI. Bourgeau, 254. Lasvson, Ranunc. Canad. 42. Boland. Cat. 3. 

 Var. arcticus. Durand, PI. Kane, 185. 



Var. caespitosus. DC. Prodr. 1. 26. Hook. Fl. Bor.-Am. 1. 10 ; Lond. Jour. 

 Bot. 6. 66. Torr. & Gray, Fl. 1. 16. Brew. & Wats. Bot. Calif. 1. 5. 

 R. hijdrockaris ccespitosas. Hiem, I. c. 100. 

 Var. heterophyllus. DC. Prodr. 1. 26. Hook. Fl. Bor.-Am. 1. 10. Cooper, 

 Pac. R. Rep. 12. 55. Gray, Manual, 40. Wood, Bot. & Fl. 19. 

 R. heterophyllus, Weber. Gray, Proc. Am. Acad. 8. 372. 



Var. Lobbii. 



R. hedemceus. Schlecht. Animad. Ranunc. 1. 7. Torrey, Pac. R. Rep. 4. 62. 



R. hjdrocharis Lobbii. Hiern, 1. c. 66, t. 114. 

 Var. stagnatilis. DC. Prodr. 1. 27. Hook. Fl. Bor.-Am. 1. 10. Torr. & Gray, 

 Fl. 1. 16. Watson, King's Rep. 5. 6. Porter, Hayd. Rep. 1871, 477 ; Fl. Col. 2. 

 Coulter, Hayd. Rep. 759. 



R. aqiiatilis, var. divaricatus. Gray, Manual, 2 ed. 7. Torrey, Mex. Bound. 29. 



R. diuaricatus. Gray, PI. Wright. 2. 8 ; Pac. R. Rep. 12. 40 ; Manual, 40. Torr. 

 & Gray, Pac. R. Rep. 2. 125. Torrey, Pac. R. Rep. 4. 62. Porter, Hayd. Rep. 

 1870, 472. 

 . R. hydmcharis longirostris. Hiern, 1. c. 100. 



Var. trichopliylluB. Gray, Manual, 40. Watson, King's Rep. 5. 5. Porter, 

 Hayd. Rep! 1871, 477 ; Fl. Col. 2. Coulter, Hayd. Rep. 1872, 759. 



R. fluviatilis. Pursh, 395. James, Long's Exp. 1. 63. Bigel. Fl. Bost. 2ed. 227. 



R. aquatilis, yar. capillaceiis. DC. Prodr. 1. 26. Torrey, Corapend. 225 ; Nicol, 

 Rep. 144. Sclileclit. in Linn. 6. 576. Hook. Fl. Bor.-Am. 1. 10. Darling. Fl. 

 Cestr. 327. Torr. & Gray, Fl. 1. 10. 



R. paniothrix. Elliott, 2. 56. 



R. aquatilis, var. brachypus. Hook. & Arn. Bot. Beechey, 316. Torr. & Gray, Fl. 

 1. 658. 



R. aquatilis, var. pantolhrix. Ledeb. Fl. Ross. 1. 27. Hook, f., Arct. PI. 311. 



R. hydrocharis trichophyllus. Hiern, 1. c. 101. 



Var. confervoides. 



Batmchium confervoides. Fries. Lapge, PI. Gronl. 12S. 

 R. hydrocharis confervoides. Hiem, 1. c. 102. 



Besides tliese, the following American forms are given by Hiern : 

 R. hydrocharis hederaefolius, 1. c. 67. 

 Drouetii, 1. c. 102. (Oregon.) 

 submersus, 1. c. 102. (Boston.) 

 R. auricomus, Linn. See syn. in DC. Syst. 1. 266; Schlecht. Animad. 2. 7; 

 Ledeb. Fl. Ross. 1. 38 ; Regel & Til. Fl. Ajan. 31 ; Regel, Fl. Ost-Sib. 1. 47 ; Traut- 

 vetter in Trud. St. Pet. Bot. Cada, 1. 49. — Pursh, 393. DC. Prodr. 1. 33. Hook, 

 in Trans. Linn. Soc. 14. 361. Torr. & Gray, Fl. 1, 17. Hook, f., Arct. PI. 283 & 

 312. 

 Var. afBuis. Lawson, Ranunc. Canad. 37. 

 R. offinis, R. Br. ; q. v. 



R. Cassubicus, Linn. Schrank, Fl. Lab. 28. Schlecht. Animad. 2. 7. Ledeb. 

 Fl. Ross. 1. 38. Dietr. Syn. 3. 317. 



R. auricomus, var. Cassubicus, Hagen. Meyer, PI. Lab. 96. 



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