MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 1638 
Wats. & Coult. in Gray, Man. Ed. 6: 160; Greene, Fl. Fran. 1: 63; Coville, Cont. U. S. 
Nat. Herb. 3: 339; Holz. aid... 223; Bailey, in Gray, F. F. & G. Bot. Rev. Ed. 152. 
Lehm. in Hook. Fl. Bor. Am. 1: 187; Schlecht. Linnaea, 10: 98; E. Meyer, PI. 
Lab. 77; Macoun, Cat. Can. Pl. 140; Lange, Consp. Fl. Groen. 3 and 234; Rosenvinge, 
ibid. GSA. 
Argentina rubra Lam. Fl. Fran. 3: 120. 1778. 
Potentilla Comarum Nestler, Mon. Pot. 24 and 36. 1814. 
Ser. in DC. Prod. 2: 583; Cham. Linnaea, 2: 25; Bong. Veg. Ins. Sitcha, 132; 
Beck, Bot. 108; Ed. 2, 100. 
Potentilla rubra Haller f. in Ser. Mus. Hely. 1: 56%. Not Willd. 
Fragaria palustris Crantz, Stirp. Aust. fase. 2: 11* 
Comarum rubrum Gilib. Fl. Lith. 5 : 255*. 
Fragaria pinnatifolia Stokes, Bot. Mat. Med. 3: 149. 
InuustRatTions: Fl. Dan. 4: pl. 636; Svensk. Bot. pl. 310; Engl. Bot. 3: pl. 172; 
Schkuhr, Handb. 2: pl. 138; Dietr. Fl. Boruss. 12: pl. 824*; Thome, Fl. Deutschl. 4: 
pl. 409; Baxter, Brit. Phan. Bot. 3: pl. 197; Britt. & Brown, Il. Fl. 2: 1937. Puatre 
99, f. 1-2; dissection of flower, f. 3; section of receptacle in fruit, f. 4; stamen, f. 5; 
young pistil, f. 6; mature pistil, f. 7. 
Perennial with a creeping rootstock; stem ascending, 2-5 dm. high, subglabrous or 
appressed-strigose, somewhat striate, brownish or reddish in color and shining, the 
lower stipules brown, scarious and wholly adnate to the petiole, the upper also adnate but 
with free tips, lanceolate or ovate and foliaceous. Basal leaves with petioles about 1 dm. 
long, the upper subsessile, all pinnate with two or three pairs of more or less approxi- 
mate leaflets, minutely silky-strigose, shining, green above, paler and purple-veined 
beneath ; leaflets oblong, oblanceolate, or even obovate, sharply serrate. Cyme leafy. 
Hypanthium and calyx in flower scarcely 1 cm. in diameter, in fruit over 2 em., silky- 
strigose. Petals, stamens, styles and the inner side of the sepals dark purple.  Bractlets 
narrowly lanceolate, scarcely half as long as the broadly ovate acuminate sepals. Petals 
ovate, acuminate or acute, scarcely half as long as the sepals. Stamens 20-25 
Comarum palustre grows in cold wet places, especially sphagnum bogs, and extends 
in America from Greenland to New Jersey, northern Illinois, Montana, northern Cali- 
fornia and Alaska. It is also found in northern Europe and Asia. 
Comarum palustre villosum Pers. 
Comarum palustre villosum Pers. Sym. Zi od:, 1607. 
Potentilla palustris villosa Walp. Ann. 2: 483; Lehm. Rey. Pot. 74; Lange, Consp. 
Fl. Groenl. 3. 
