160 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 
Richardson, Frankl. 1st Journ. 739; Ed. 2: App. 20; Cham. Linnaea, 2: 24; Hi. 
Meyer, Pl. Lab. 76; Bongard, Veg. Ins. Sitcha, 132; Lehm.in Hook. Fl. Bor. Am. 1: 189; 
Schlecht. Linnaea, 10:98: Hook. & Arn. in Beechey’s Voy. 118, 123 and 338; Ledeb. 
Fl. Ross. 2: 44; Seem. Bot. Herald, 29 and 52; Barnton, Cat. Can. Pl. 8; Provancher, 
Fl. Can. 189; J. Macoun, Syn. Fl. St. Lawr. (Can. Jour. Si 4 Cate Came yk las 
Lange, Consp. Fl. Ee 5 and ae Rosenvinge, 1. c. 654; Fowler, Pl. N. Bruns. 26; 
Knowlton, Proc. U. 8. Nat. Mus. 1885: 215; Steineger, 1. c. 532: Coville, Cont. U.S. 
Nat. Herb. 3: 338. 
Potentilla argentina Huds. Fl. Ang. 195. 1762. 
Gilib. Fl. Lith. 6: 254. 
Argentina vulgaris Lam. Fl. Fran. 8: 119. 1778. 
Dactylophyllum Anserina Spen. Fl. Frib. 3: 1084. 
Fragaria Anserina Crantz, Stirp. Aust. fase. 2: 9%; Ed. 2, 71". 
Lunusrrations: Morr. Hist. 17: pl. 20, f. 4; Sturm, cana HA ols 7a ne 
Bot. 12: pl. 861; Fl. Dan. 4: pl. 544; Dietr. Fl. Boruss, 2: pi. 12; eleyme, Avaneie 
4: pl. 31*; Thome, Fl. v. Deutsch]. 3: pl. 404; Sv. Bot. pl. 152*; Curt. Lond. 3: pl. 3 
Schrank, Fl. Monae. 4: pl. 386"; Dreves, Bot. Bilderb. 1: pl. 35°; Boe & Brown, Il. FL. 
2:7. 1934. Puare 98, f. 1; dissection of flower, f. 2; stamen, f. 3; pistil, side view, /. 
4; the same seen from above, f. 5; fruiting hypanthium and calyx, f. 6. 
Main stem almost none from perennial fascicled roots and producing numerous 
long runners. Leaves 1-2 dm. long, abruptly pinnate with 9-31 larger leaflets and 
smaller interposed, in the typical form spreading or flat on the ground, slightly silky 
and green aboye, white-silky and tomentose beneath ; larger leaflets 1-3 cm. long, oblong, 
oblanceolate or oboyate, deeply and sharply serrate with lanceolate or triangular teeth. 
Flowers 1-2.5 cm. in diameter, on pedicels 3-20 cm. long. Bractlets simple and lanceo- 
late, or often broader, toothed or divided, generally a little longer than the broadly ovate 
sepals. Petals elliptic, often twice as long as the sepals. Achenes numerous, very 
thick and often grooved at the upper end. 
A. Anserina grows on moist ground in the arctic and colder temperate regions of the 
northern hemisphere, extending in America from Greenland and Alaska to New Jersey’ 
and Northern California and in the mountain regions to New Mexico and Arizona. 
It has also been collected in Chile. 
Argentina Anserina concolor (Ser.). 
Potentilla Anserina concolor Ser. in DC. Prod. 2: 582. 1825. 
Lange, Consp. Fl. Groen. 234; Don, Gard. Dict. 2: 559; Lehm. Rev. Pot. 189 ; 
Rydb. Bull. Torr. Bot. Club, 24: 12 
