192 



ROSACEA. [Potentilla 



calycem sequaiitibus. Lehm, — Linn. Sp. PL p. 713. Jacq, Ic, Bar, /. 91. Pursh^ Fl, Am. 

 r. 1. p, 355. Lehm, Monogr. Pot /?, 105. De Cand, Prodr. v, 2. p, 575. 



Hab. Labrador. (Herb. Baiilis, fide Pursh.') 



18. P. Canadensis ; caule adscendente debili, foliis radicalibus quinatis, foliolis sessilibus 

 obovato-cuneiformibus supeme acute serratis candicanti-sericeis, petalis orbiculatis snbinte- 

 gris longitudine calycis. Lehm, — Linn. Sp. PI. p. 713. Mich, Am. ^v. 1. p. 303. Pursh, 

 Fl. Am. V. 1. p, 354. 'blestl, Monogr. Pot, p. 58. t, 10. f, 1. Lehm. Monogr, Pot. p. 118. 

 Elliott, Carol, v. 1. p. 173. Torrey^ Fl, of Un. St, v, 1. p, 426, De Cand. Prodr, v. 2. 

 p. 575, — P. pumila. Lam, — P. sarmentosa, " Muhl.'^ et Bigel, in Fl. Bost. ed. 2. p. 204. 



(fide specim. ab amiciss. Boott,) 



Hab. Canada. Mickaux. — Dr. Boott's specimens of " P. sai-mentosa of Muhl./* (and Willd. ?), precisely 

 accord with Dr. Torrey's, and with Nestler*s description and figure. It may be a state of P, simplex before 

 the appearance of the runners, but the leaflets are broader and much paler, and silky beneath. 



19. P. simplex ; caule sarmentoso, foliis quinatis, foliolis oblongo-ovalibus serratis sub- 

 tus subpilosis, pedicellis axillaribus solitariis longitudine foliorum, petalis rotundatis vix 

 emarginatis calyce paullo longioribus. Lehm. — Mich, Am. v. 1. p, 303. Pursh, Fl, Am, v. 

 1. p, 354. Nestl, Monogr, Pot, p. 40. t, 9./. 2, Lehm. Monogr, Pot. p. 142. Elliott, Carol, 

 v,l. p. 574. Bigel. Fl. Bost, ed. 2. p. 204. Torre^, FL of Un. St. v. I. p, 497. De Cand. 

 Prodr, V, 2. p. 575. — P. sarmentosa, Willd. (fide Lehm. ex specim. in Herb. Willd.) an 

 MuhL? — P. Caroliniana. Poir, 



Hab. Canada. Michaux, About Quebec. Mrs. Perciva?, W. Sh^ppard, Esq. — This should be com- 

 pared with authentic specimens, and in different states, of P. Canadensis, to see if tliey may not prove the same. 



r 



20. P, gracilis ; caule erecto elato supeme corymboso-paniculato molliter hirsute, foliis 

 longe petiolatis 5-natis superioribus solununodo sessilibus, foliolis lanceolatis profunde pin- 

 natifido-serratis subtus albo-tomentosis, stipulis magnis lanceolatis integerrimis, petalis ob- 

 cordatis calyce sericeo longioribus. — Douglas, MSS, apud Hort. Soc, Land. — Hook, in Bot, 

 Mag. t. 2984. 



Hab, Banks of the Columbia and plains of the Multnomak Rivers. Donglas, Dr. Scouler. — In habit 

 nearly allied to P. pidcherrima of Lehm. in this work ; but here the leaflets are truly dictate, not pinnated 

 in the slightest degree. [H.'\ 



21. P. flabelliformis, (Lehm.); caule erecto gracili, foliis novenatis septenatisve, foliolis 

 profunde pinnatifidis supra adpresse pilosis subtus incano-tomentosis laciniis linearibus dis- 

 tantibus margine revolutis, floribus corymbosis, petalis obcordatis calycem superantibus. 

 (Tab. LXVI.) 



Caulis suberectus, sesquipedalis, gracilis, teres, fistulosus, subpurpurascens, incumbente pilosus. Folia 

 radicalia longe petiolata novenata septenatave, caulina septenata et quinata brevius petiolata, summa ter- 

 nata. Foliola sessilia seorsim sese tegentia, flabellum fere formantia, profunde pinnatifida, supra viridia 

 adpresse pilosa, subtus incano-tomentosa, laciniis remotis, linearibus, obtusis, integerrimis, margine revolutis. 

 Petioli lanati foliorum radicaliura 3-6 pollices longi. Stipulce angusto-lanceolatae, aciiminatie, integerrimae, 

 subtus lanatffi. Flores pro planta parvi, hreviter pedicellati, in summo caule congest!. Calyces incani sub- 

 lanati, fohoHs exterioHhus linearibus, interioribus ovatis acuminatis reliquis multo majoribus. Petala aurea, 

 obcordata, basi cuneata, calyce duplo majora. Beceptaculum pilosum. 



