36 MEMOIRS FROM THE DEPARTMENT OP BOTANY OF COLUMBIA UNIVERSITY 



ing pubescence tinged with red, at first upright or adsurgent, later decumbent or pros- 

 trate and flagelhform, 4-6 dm. long. Stipules ovate or lanceolate, often 2-5-cleft or 

 toothed, with acute divisions. Basal leaves with slender petioles 4-6 cm. long, silky-stigose, 

 digitately 5-foliolate or 3-foliolate with the lateral leaflets divided in two. Leaflets 2-4 

 cm. long, obovate or cuneate-oblong, coarsely and generally doubly serrate. Stem leaves 

 similar but short-petioled and often somewhat fascicled. Flowers solitary from the axil 

 of the second or some subsequent leaves, on slender pedicels 3-10 cm. long, 10-12 mm. in 

 diameter. Hypanthium silky, in fruit about 8 mm. in diameter. Bractlets lanceolate, 

 about equalling the ovate or lanceolate sepals. Petals yellow, obcordate, exceeding 

 the sepals by about one-third. 



Common from Maine and North Carolina to Indian Territory and Minnesota. I 

 have seen one specimen collected in Nevada by W. H. Shockley, but this was undoubt- 

 edly introduced. 



Potentilla Canadensis simplex (Michx.) T. & G. 



Potentilla simplex Michx. Fl. Bor. Am. 1 : 303. 1803. 



Poir. in Lam. Enc. Meth. 5 : 596 ; Persoon, Syn. PL 2 : 55 ; Nestler, Mon. Pot. 25 & 

 40; Lehm. Mon. Pot. 27 & 142; Sprengel, Syst. Veg. 2: 538; Tratt. Ros. Mon. 4=^ Ser- 

 inge in DC. Prod. 2: 575; Don, Card. Diet. 2: 552. 



Pursh, Fl. Am. Sept. 354 ; Ell. Sk. Bot. S. C. & Ga. 1 : 574; Nutt. Gen. N. Am. PI. 

 1: 310; Eat. Man. Ed. 2: 379; Ed. 3: 407; Ed. 5: 344; Ed. 6: 280; Ed. 7: 457; 

 Bigel. Fl. Bost. 124 ; Ed. 2 : 204; PL Bost. 217; Bart. Comp. Fl. Phil. 1 : 236; Torr. Fl. 

 U. S. 497; Comp. 210; Beck, Bot. 106; Dark Florula Cest. 65; Fl. Cest. 304; Eat. & 

 Wr. N. Am. Bot. 373. 



Lehm. in Hook. Fl. Bor. Am. 1 : 192. 



Potentilla Couadensis simplex Torr. & Gr. Fl. N. Am. 1 : 443. 1840. 



Walp. Rep. 2: 34; Ann. 2: 513; Lehm. Stirp. Pug. 9: 72; Lehm. Rev. Pot. 187. 

 Gray, Man. Ed. 2: 118; Ed. 5: 154; Wood, Class Book, 343; Wats. Proc. Am. Acad. 8 : 

 563; Rydb. Fl. Neb. 21 : 18 ; Macoun, Cat. Can. PL 141 and 518. 



Potentilla Caroliniana Poir. in Lam. Enc. Meth. 5: 595: Persoon, Syn. PL 2 : 55.' 



Potentilla sarmentosa MuhL; AVilld. En. Hort. Ber. 554; Bigel. Fl. Bost. Ed. 2" 

 204; Eat. Man. Ed. 5 : 344 ; Ed. 6: 280; Ed. 7 : 457; BigeL PL Bost. 217; Eat and 

 Wr. N. A. Bot. 373. 



iLLi-sTRATioNs : Ncstlcr, Mon. Pot. pi. 9. f. 2. Plate /,. /. l ■ dissection of flower, 

 /. '2; pistil,/. 3; stamen,/ 4; fruiting hypanthium and calyx,/ .5. 



