300 KOSACE^. [PotentiUa. 



P. Pennsylvanica. Linn. Mant. 7G. See syn. in Ledeb. Fl. Ross. 2. 40 ; Lehm. 

 Kev. Pot. 57. — Ait. Hort. Kew. 2. 214. Willd. Spec. 1099. Michx. Fl. 1. 304. 

 Poir. Diet. 5. 588. Persoon, 2. 54. Pursh, 356. Nestler, Monog. Pot. 36. Lehm. 

 Monog. Pot. 55; Hook. Fl. Bor.-Am. 1. 187. Torrey, Am. Joiirn. Sci. 1. 4. 64; Fl. 

 U. S. 499. Seringe, DC. Prodr. 2.581. Spreng. Syst. 2. 533. Beck, Bot. 107. Torr. 

 & Gray, Fl. 1. 438, excl. vars. S & e. Eat. & Wr. 373. Walp. Rep. 2. 32. Gray, 

 PI. Fcndl. 42 ; Pac. R. Rep. 12. 43 ; Manual, 154. Parry, PI. Minn. 612. PI. Bour- 

 geau, 256. Rothr. Fl. Alask. 445 ; PI. Wheeler, 37. Regel & Herder, Bull. Soc. 

 Mosc. 1. 474. Porter, Hayd. Rep. 1871, 481. Watson, Rev. Pot. 553; PI. Wheeler, 

 8. Referred to P. serkea by Hook, f . in Arct. PI. 290 & 325. 



P. Missourica. Schrad. Ind. Sem. h. Gcett. (Litt.-Ber. zu Linnaea, 8. 26). Lindl. 

 Bot. Reg. 17, 1. 1412. Don, Mill. 2. 557. 



Var. strigosa. Pursh, 356. Lehm. 11. cc. Torr. & Gray, Fl. 1. 438. Engelm. 

 PI. Upp. Miss. 191. Gray, Am. Journ. Sci. 2. 33. 411 ; Proc. Acad. Pliilad. 1863, 61. 

 Porter, Ilayd. Rep. 1871, 481 ; Fl. Col. 36. Watson, Rev. Pot. 554. 



Var. glabrata. Watson, 1. c. 



P. sericea, var. glabrata. Lehm. in Hook. Fl. Bor.-Am. 1. 189 ; Rev. Pot. 34. 

 Don, Mill. 2. 560. Torr. & Gray, Fl. 1. 437. Torrey, Frem. Rep. 89. Seem. Bot. 

 Herald, 29. 



P. Pennsylvanica. Hook. & Am. Bot. Beechey, 123. 



P. Pennsylvanica, var. strigosa. Watson, lung's Rep. 5. 86. 

 Var. arachnoidea. Lehm. Nov. Stirp. Pug. 9. 41 ; Rev. Pot. 59. 



P. Pcnnst/lranica, var. conferta. Gray, PI. Fendl. 42. 

 Var. bipinnatifida. Torr. & Gray, Fl. 1. 438. Torrey, Nicol. Rep. 149. Hook, 

 in Lond. Journ. Bot. 6. 220. Lehm. Rev. Pot. 60. 



P. argiita. Lehm. Monog. Pot. 62, not Pursh. Cham. & Schlecht. in Linnrea, 

 2.26. Spreng. Syst. 2. 534. 



P. Pennsylvanica, var. arguta. Seringe, DC. Prodr. 2. 581. 



P. hipinnatijida. Dougl. ; Hook. Fl. Bor.-Am. 1. 188. Don, Mill. 2. 558. Eat. 

 & Wr. 374. 



P. Plattensis. Nutt. ; Torr. & Gray, Fl. 1. 439. Walp. Rep. 2. 32. Dictr. 3. 187. 

 Lehm. Rev. Pot. 28, t. 6. Gray, Proc. Acad. Philad. 1863, 61. Watson, Rev. Pot. 

 556. Porter, Fl. Col. 36. Rothr. PI. AVheeler, 37. Brew. & Wats. Bot. Calif. 179. 



P. sericea, var. j3. PI. Bourgeau, 256. 



? P. diversifoUa, var. pinnatisccta. Watson, lung's Rep. 5. 87. 

 P. pulchella. R. Brown, Ross's Voy. 142 ; Parry's 1st Voy. 277 (Regensb. Flora, 

 7-, Beil. 87). Hook, in Parry's 2d Voy. 395. Lehm. Monog. Pot. Suppl. 14, t. 7 ; 

 Nov. Stirp. Pug. 3. 25 ; Hook. Fl. Bor.-Am. 1. 191 ; Rev. Pot. 36. Spreng. Syst. 

 42. 198. Seringe, DC. Prodr. 2. 582. Hornem. Fl. Dan. 13, t. 2234. Don, Mill. 



2. 586. Torr. & Gray, Fl. 1. 439. Eat. & Wr. 374. Walp. Rep. 2. 33. Dietr. 



3. 185. Seem. Bot. Herald, 29. Lange, PI. Groenl. 134. Durand, PI. Kane, in 

 Journ. Acad. Philad. 1856, 190 (Kane's Exped. 2. 453). Watson, Rev. Pot. 554. 



P. sericea. Greville, Mem. Soc. Wern. 3. 430. Eat. & Wr. 374. 



P. nivea, var. pulchella. Durand, PI. Hayes, Proc. Acad. Philad. 186-3, 94. 

 P. rivalis. Nutt. ; Torr. & Gray, Fl. 1. 437. Walp. Rep. 2. 31 ; Ann. 2. 515. 

 Dietr. 3. 178. Lehm. Ind. Sem. h. Hamb. 1851, Add. 10 (Linna;a, 25. 313) ; Otto, 

 Gartenz. 7. 350 ; Rev. Pot. 196, t. 61. Gray, Ives's Rep. 11. Boland. Cat. 12. 

 Anderson, Cat. PI. Nev. 120. Watson, Rev. Pot. 552. Porter, Fl. Col. 16. Rothr. 

 PL Wheeler, 37. Brew. & Wats. Bot. CaUf. 1. 178. 



