360 
compahgre Mountain (Flint); California: Sacramento Valley 
(U.S. S. Pac. Ex. Exp. 124), De Fuca (Scouler); Mexico: Near 
City of Mexico (Gregg, 126). : 
30. POLYGONUM HARTWRIGHTII, A. Gray, Proc. Am. Acad. 
vili. 294 (1870). 
New York: Yates County (Hart Wright), Erie County (Brit- 
ton); New York County (Bicknell); New Jersey: Sussex 
County (Porter and Britton); Michigan: Keweenaw County 
(Farwell, 351), Fort Gratiot (Pitcher); Nebraska: Cherry County 
(Bates); Nevada: Lake Washoe (Torrey, 427); Oregon: Nas- 
qually (U.S. S. Pac. Ex. Exp. 124). 
SECTION IIL.—AMBLYGONON. 
31. POLYGONUM ORIENTALE, L. Sp. Pl. 362 (1753). 
Introduced into waste grounds from India in many localities 
throughout the United States. 
SECTION IV.—ACONOGONON. 
32. POLYGONUM ALPINUM, All. Fl. Pedem. ii. 206, t. 68 f. i. 
(1785). | 
P. polymorphum, Ledeb. var alpinum, Ledeb. Fl. Ross. itt. 
524 (1849). 
Nevada: East Humboldt Mountains, 8,000 ft. (Watson, 
1071). 
Var. FOLIOSUM (Keller). 
P. polymorphum, Ledeb. var. foliosum, Keller, Bull. Soc. Bot. 
Belg. xxx. 49 (1891). 
Washington: Mount Adams (Howell); Mount Paddo (Adams) 
6,000-7,000 ft. (Suksdorf). . 
Var. LAPATHIFOLIUM, C. and S, Linnza, iii. 38 (1828). 
P. polymorphum, Ledeb. var. lapathifolium, Ledeb. FI. 
Ross. iii. 525 (1849). 
Alaska: Kuskokoin Valley (Weinmann), St. Michaels (Muir, 
180), Cape Blossom (McLenigan), Kotzebue Sound (Beechey), 
Youkon River (Dall). 
v33. POLYGONUM PHYTOLACCAFOLIUM, Meisn. n. sp. 
Plant erect, sparingly branched, smooth. Leaves ovate to 
ovate-lanceolate, obtuse or slightly cordate at base, acute at the 
