94 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 



Xcw Hampshire : Oakes and Robbins (Isle of Shoals) ; W M. Canby. 



Maine: Wm. Boott (C'ape Elizabeth) ; ^I. L. Fernald ; E. P. Bicknell, 1893. 



Neivfoundkmd: Waghorne, No. 8, 1895. 



QueJjee : J. A. Allen, 1881 (Shores of St. Lawrence). 



Labrador: J. A. Allen, 1882. 



Hudson Bay : Bell, No. 1443 in part, 1884. 



75. Potentilla multifida L. 



Potentilla multifida L. Sp. PI. 496. 1753. 



L. Sp. Pi. Ed. 2 : 710 ; Willd. Sp. PI. 2 : 1096 ; Ait. Hort. Kew. 2 : 213 ; Poir. in Lam. Enc. 

 Meth. 5 : 585 ; Ait. Hort. Kew. Ed. 2, 3 : 274 ; Persoon, Syn. PL 2 : 54 ; Nestler, Mon. Pot. 23 and 

 33 ; HaUer, Syn. 56 ; Lehm. Mon. 22 ; Ser. in DC. Prod. 2 : 581 ; Spreng. Syst. Yeg. 2 : 535 ; Ledeb. 

 Fl. Eoss. 2 : 42 ; Lehm. Rev. Pot. 34 ; Don, Gard. Diet. 2 : 560 ; Dietr. Syn. PI. 3 : 189 ; Walp. Ann. 

 2 : 473 ; Rydb. Bull. Torr. Bot. Club, 23 : 264 ; Britton & Brown, 111. Fl. 2 : 215. 



Illustrations : Ser. Mus. Helv. 1 : pi. 8;* Britt. & Brown, 111. Fl. 2 : /. 19S1. Plate 37, f. 6; 

 dissection of flower, /. 7; stamens, /. 8; pistil, /. a ; fruiting lijT)anthium and calyx, /. 10. 



Stems many from the caudex, low, at last spreading, generally less than 2 dm. high, appressed 

 silky-strigose. Stipules large, lanceolate, acuminate, more or less scarious and brown. Leaves pin- 

 nate, of 2-3 pairs of leaflets, grayish-tomentose beneath, smooth above ; leaflets peetinately divided to 

 very near the midrib into linear acute revolute divisions. Hypanthium silky-strigose, in fruit 5-7 

 mm. in diameter ; braclets oblong-lanceolate, acute, a little shorter than the ovate-lanceolate acute 

 sepals. Petals cuneate, emarginate, a little exceeding the sepals. 



This is a species which somewhat resembles P. hijnnnalifida, but the plant is spreading or ascend- 

 ing, the leaflets only 5 to 7, their segments nearly filiform with revolute margins, the stipules 

 long-acuminate, scarious and brown, the sepals narrower and the style not thickened and glandular at 

 the base. It is not rare in northern and alpine Europe and Asia, but I have seen only the following 

 specimens from America. 



Great Slave Lake: Miss E. Taylor, JSTo. 50. 1892. 



Hudson Bay: R. Bell, ISSO (York Factory); No. 1443 in part, 1879 (Churchill River). 



Lake Xipigoii : Macoun, No. 1444a. 1884. 



75. Potentilla glabrella. 



PotentiUa serieca glahrata Hook. Fl. Bor. Am. 1 : 189. 1833. Not P. cjlahrata 

 Lehm. 



Eat. Man. Ed. 7 : 458; Torr. & Gray, Fl. N. A. 1 : 437; Lehm. Rev. Pot. 34; Torr. 

 Fremont's 1st Exp. 89 (1 74) ; Don, Gard. Diet. 2 : 560 ; Seemann, Bot. Herald, 29 ; Dietr. 

 Syn. PL 3: 189; Walp. Rep. 2: 32; Ann. 2: 473. 



Potentilhi Pcnasijlvaniea ghdirafa Wats. Proc. Am. Acad. 8 : 554. 1873. 



Macoun, Gat. Gan. PL 137 and 517, 1883-6; Goult. Man. Rocky Mts. 85, 1885; 

 Rydb. Bull. Torr. Bot. Glub, 23 : 264. 



