LIST OF HIGHER SEED-PRODUCING PLANTS. 209 
Polygonum aviculare Linn. Spec 362 (1753). 
P. centinodium Lam. FI. Fr. III, 237 (1793). 
P. geniculatum Porn. Enc. Meth. VI, 147 (1804). 
P. provinciale Kocu, Linn. XXII, 204 (1848). 
Wats. and Coult., Gray’s Man. 6 ed. 439; Britt., Fl. N. J. 210; Upham, 
Fl]. Minn. 119; Mac., Fl Can. I, 407; Webb., Fl. Neb. 112; Coult., Fl. Colo. 
318; Chap., Fl. S. St. 390; Brew. and Wats., Fl. Calif. 1], 11; Miyabe., Fl. 
Kur. 257; Led., Fl. Ross. III, 531; Nym., Fl. Eur.; Trautv. Fl. Sib. 101; 
Hook., Fl. Gt. Brit. 346; Herd., Fl. Eur. Russ. 112; Roth., Wheel. Exp. 
5, 230, 373; Wats., King Exp. 315; Cov., Fl. Ark. 215; Hart, Fl. Scand. I, 
333; Engl. Damm. Nat. Pflanz. 3, I, a, 29; Rothr., Alask. 453; Greene, Fl. 
Fran. 133. : 
All Europe; all Russia and Siberia to Japan and Kurile 
Isls. 
North America: Greenland to Alaska and S. to Calif. 
and Ga ; indigenous west of the Mississippi. 
Minn. valley: Throughout; door yards, roadsides, 
fields and banks. 
HERB.: Sheldon 1558, Lake Benton; Sheldon 1011, 
Sleepy Eye; Ballard 524, Cleary’s lake, Scott Co.; Sandberg 
482, Red Wing; Roberts 116, Grand Marais; Kassube 208, 
Minneapolis; Holzinger 198, Winona Co.; Herb. Sheld. 1670, 
Minneapolis; Herb. Wickersheim 112, Idlewild, Lincoln Co. 
Polygonum virginianum LINN. Spec. 360 (1758). 
P. muticum MoOENCH, Suppl. 266 (1802). 
Persicaria virginiana GAERTN. Fruct. II, 180 (1791). 
? Antenoron racemosum RAF. Fl. Lud. 28 (1817). 
Wats. and Coult., Gray’s Man. 6 ed. 442; Britt., Fl. N. J. 209; Webb., 
Fl. Neb. 112; Mac., Fl. Can. I, 418; Upham, Fl. Minn. 119; Chap., Fl. S. 
St. 390; Cov., Fl. Ark. 216; Engl.-Damm., Nat. Pfi. 3, I a, 28. 
North America: N.S. to Ont.; S. to Fla.; W. to Minn., 
Neb., Ark. and Mo. 
Minn. valley: S. central district; thickets and moist 
woodland. 
HERB.: Sheldon 288, Madison Lake, Blue Earth Co. 
Polygonum articulatum LINN. Spec. 361 (1753), 
Polygonella articulata MEISN. Gen. II, 228 (1843). 
Wats. and Coult., Gray’s Man. 6 ed. 443; Britt., Fl. N. J. 210; Upham, 
Fl. Minn. 119; Mac., Fl. Can. 409; Cov., Fl. Ark. 215. 
North America: Sault Ste. Marie and N. Superior 
region to Saskatchewan; S. to Maine, N. J. and Minn.; S. to 
Mo. and Ark. 
Minn. valley: Reported from 8. central district; infre- 
quent or local; dry and sandy soil. 
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