1902] PLANTS COLLECTED AT NOME CITY, ALASKA 203 
98. Geum Rossii Seringe, DC. Prodr. 11: 553. 1825. Siev- 
rsa Rossu R. Brown, Parry’s First Voy. App. 276. 1824.— 
Stems clothed at base with the brown sheathing petioles and 
____ Stipules of dead leaves, glabrous below, 3°"-3% high, 1 or 2- 
flowered, with some bract-like leaves scattered along the flower- 
ing stem: leaves interruptedly pinnate, the larger divisions 
irregularly lobed at the top, the smaller ones much smaller, 
atire: calyx open-campanulate, often brownish-red, pubescent : 
corolla yellow, 2° in diameter, with the petals suborbicular, 
obcordate, veiny: stamens numerous on filiform filaments 
lmserted on the calyx: pistils with very slender straight styles 
and akenes hispid with upwardly spreading hairs. 
Superficially this resembles some species of Potentilla. 
ee a POTENTILLA BIFLORA Willd. ex Schlecht. in Gen. Naturf. 
Fr. Berol. Mag. 7: 297. 1813.— Caudex clothed with brown 
broad sheathing stipules: leaves with linear, revolute divisions, 
hairy on the margins and lower surface, and with a tuft of hairs 
at the apex: scapes 1-2-flowered: calyx appendages linear, 
astower than the ovate divisions, almost equaling them in 
Ss petals obcordate, with the base a deeper yellow than the 
ga : akenes glabrous, reddish at summit and tipped with 
a ed species, and easily distinguished from the other spe- 
- shrubby habit. The akenes are woolly, and the 
» 2 in diameter. 
tore Mee ted . Potentilla by P. A. Rydberg as Rafinesque’s Dasi- co. 
AG . Dept. t. Columb. Univ. 7: 188). a 
0 Sten: 
lea 
flo wers 1 or rarely 2 on the stem: calyx white-1 hae 
ea as broad and long as the ovate-lance 
late 
ENTILLA UNIFLORA Ledeb. Mem. Acad. : Petersb. . 
—Cespitose, the caudex clothed with brown dry — a 
“ves cinereous on the upper surface, densely white- 
