521 
Rumex venosus Pursh, Fl. ii, 733 (1814). 
Custer, altitude 1,700 m., June 5; Hermosa, altitude 1,100 m., June 27 (No. 972). 
Rumex occidentalis Wats. Proc. Amer. Acad. xii, 253 (1876). 
Near water: Buffalo Gap, altitude 975 m., June 21; Custer, altitude 1,600 m., 
August 1 (No. 973). 
Rumex salicifolius Weinm. Fl. iv, 28 (1821). 
Rochford, altitude 1,600 m., July 12 (No. 974). 
Rumex crispus L. Sp. Pl. i, $35 (1753). 
I believe this is a native of the Black Hills as well as of western Nebraska. Lead 
City, altitude 1,600 m., July 9; Custer, altitude 1,600 m., August 1 (No, 975). 
Rumex acetosella L. Sp. Pl. i, 838 (1753). 
Introduced: near Whitewood, altitude 1,100 m., July 7 (No. 976). 
Polygonum aviculare L. Sp. Pl. i, 362 (1753). 
Rochford, altitude 1,600 m., July 11 (No. 977). 
No. 978 is a small, undeveloped, erect form which I took to belong to this species. 
Mr. J. K. Small, who has identified the species of Polygonum, writes: “It might bea 
form of aviculare, litorale, or ramosissimum.” 
Polygonum litorale Link, Schrad. Journ. Bot. i, 54 (1799); 
Common along the railroad above Hot Springs, altitude 1,050 m., August 9 (No. 979), 
Some specimens are more upright and have broad, elliptical leaves (No. 980). 
Polygonum ramosissimum Mx. F 1. i, 287 (1803). 
Hot Springs, altitude 1,050 m., August 9 (No. 982), 
Some luxuriant specimens, more decumbent and spreading, with thicker leaves, 
resemble, according to Mr. Small, a form that has been named variety patulum by 
Engelmann in manuscript. Hot Springs, August 9 (No. 981). 
Polygonum sawatchense Small, Bull. Torr. Club, xx, 213 (1893). 
Mr. Small remarks about this: “Slender form due to the lower altitude than that 
of the type.” Custer, altitude 1,800 m., July 16 (No, 983). 
Polygonum douglasii Greene, Bull. Cal. Acad. i, 125 (1885). 
Tall, 4 to 7 dm. high, with conspicuous, strongly nerved sheath. Custer, altitude 
1,700 m., August 1 (No. 984). 
Polygonum lapathifolium L. Sp. Pl. i, 860 (1753). 
Hot Springs, altitude 1,050 m., August 9 (No. 985). 
Polygonum emersum (Mx.) Britton, Trans. N. Y, Acad. viii, 738 (1889); Poly- 
gonum amphibium emersum Mx. Fl, i, 240 (1803). 
French Creek, east of Custer, altitude 1,100 m., July 22 (No. 986). 
Polygonum viviparum L. Sp. PI. i, 3860 (1753). 
In wet place, among moss, below Sylvan Lake, altitude 2,000 m., July 19 (No. 987). 
Polygonum convolvulus L. Sp. Pl. i, 364 (1753). 
Railroad embankment, Hot Springs, altitude 1,050 m., August 9 (No. 988). 
ELEAGNACES. 
Bleagnus argentea Pursh, Fl. i, 114 ( 1814). 
Hills in the Limestone District, near Bull Springs, altitude 1,900 m., July 27, 
(No. 989). 
Lepargyrea canadensis (L.) Greene, Pittonia, ii, 122 (1890); Hippophaé canaden- 
sis L. Sp. Pl. ii, 1024 (1753). 
Woods: Custer, altitude 1,700 m., May 30; Little Elk, altitude 1,100 m., June 28; 
Lead City, altitude 1,600 m., July 6 (No. 990). 
Lepargyrea argentea (Nutt.) Greene, Pittonia, ii, 122 (1890); Hleagnus argentea 
Nutt. Fraser’s Cat. (1813). 
A few bushes were seen near Hot Springs, but no specimens were secured, 
13144—No. 8 
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