99 MEMOIRS FROM) THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 
Closely resembles P. pulchella, but is still smaller and differs in the smaller flowers, 
the lack of the long hairs, and the stalked terminal leaflet. It is a native of Spitzbergen 
and Greenland, but one specimen at least has been collected on the arctic coast of the 
American Continent ; this was sent to Dr. Torrey from Dr. Hooker, under the name P. 
pulchella, but the collector’s name does not appear on the label. 
77. Potentilla pulchella h. Br. 
Potentilla pulchella R. Br. in Ross’ Voy. 142; Hd. 2, 198. 
Sprengel, Syst. 4: part 2,198; Seringe in DC. Prod. 2: 582; Lehm. Mon. Pot. 
Suppl. 1:14; Stirp. Pug. 3: 25; Don, Gard. Dict. 2)--556> Diets syne Sse so:, 
Walp. Rep. 2: 33; Ann. 2: 474; Lehm. Rev. Pot: 36: 
Eat. Man. Ed. 7: 459; Torr. & Gray, Fl. N. Am. 1: 439; Hat. & Wr. N. Am. Bot. 
374; Wats. Proc. Am. Acad. 8: 554; Rydb., Bull. Torr. Bot. Club, 23: 265. 
R. Br. in Parry’s Ist Voy. Supp. 277; Hook in App. Parry’s 2d Voy. 15; Parry’s 
3d Voy. 202; Hook. Fl. Bor. Am. 1: 191; Seemann, Bot. Herald, 29; Durand, Journ. 
Acad. Phil. 1856 : 190; Lange, Consp. Fl. Groen. 4" and 234; Rosenvinge, ibid. 654 ; 
Nathorst. Afv. Kong. Vet. Ak. Forh. 1884 : 23 ; Macoun, Cat. Can. Pl. 137 and 517. 
Potentilla sericea Grev. in Mem. Wern. Soe. 3 : 430, Eat. & Wright. N. Am. Bot. 374. 
Potentilla Keilhavii. Sommerf. (Bidr. Spitzb. Fl.) in Mag. Naturv. 2: 244 ** Lindb. 
Regensb. Bot. Zeit. 2: 485. 1842.* 
Potentilla nivea pulchella Durand, Proc. Acad. Phil. 1863: 94. 1863. 
Intusrrarions: Lehm. Mon. Suppl. 1: pl. 7, f. 1. Fl Dan. 18: pl. 2234. PLATE 
36, f. 6; dissection of flower, f. 7; pistil, f. 8; stamen, f. 9; fruiting hypanthium and 
Calyx, is) 10: 
Cespitose, or with short prostrate branches from a perennial caudex covered with the 
brown searious stipules. Stem generally less than 1 em. long, subscapose, few-flowered, 
silky-hirsute with yellowish hairs. Leaves short-petioled, pinnate, with 2 pairs of leaflets 
and a sessile terminal one, yellowish-silky and also a little tomentose beneath; leaflets 
obovate- cuneate in outline, deeply dissected into linear-lanceolate segments, the lower pair 
smaller and often entire. Hypanthium yellowish-silky; bractlets oblong, shorter than 
the ovate sepals. Petals obovate, retuse, a little exceeding the calyx. 
P. pulchella is generally a very small plant, tufted with many spreading stems from 
the perennial root. The stems are generally less than 1 dim. long, but in one specimen 
seen fully 3 dm. ‘The leaves have only two pairs of leaflets, and the terminal leaflet is 
1 Also var. elatior. 
