487 
VIOLACEA. 
Viola pedatifida Don, Hist. Dichl. Pl. i, 320 (18381). 
Valley: Custer, altitude 1,650 m., June 4 (No, 548). 
Viola obliqua Hill, Hort. Kew. 516, t. 12 (1769); Viola palmata obliqua (Hill) 
Hitchcock, Trans. St. Louis Acad. v, 487 (1891); I’. eucullata Ait. Hort. Kew. iii, 288 
(1789), 
Low grounds: Ruby Gulch, near Custer, altitude 1,650 m., May 31 (No. 544). 
Viola palustris L. Sp. Pl. ii, 954 (1753). 
Only four specimens in fruit were collected. These have larger and thinner leaves 
than usual, resembling somewhat those of the Alaskan I’. langsdorfii. Sylvan Lake, 
6 miles northeast of Custer and 4 miles from Harneys Peak, altitude 2,000 m., July 20 
(No, 545), 
Viola blanda Willd., Hort. Berol. t. 24 (1806). 
Among moss, in a canyon below Sylvan Lake, altitude 1,900 m., June 9 (No. 546). 
Viola canina adunca (Smith) Gray, Proc. Amer, Acad, viii, 377 (1872); Viola 
adunca Smith, Rees’s Cycl. No. 68 (1817). 
My specimens lack the dark-brown spots attributed to this variety in Hook. FI. 
Bor. Amer. i, 79. Borders of rich woods, early in the spring. South of Custer, alti- 
tude 1,650 m., May 30 (No. 547). 
Viola canina oxyceras (?) Wats. Dot. Cal. i, 56 (1876). 
T have not seen any specimens of this variety, but as it is the only one described 
with acute spur, I place this plant with it. 
Rare: near Lead City, altitude 1,500 m., July 6 (No. 548). 
Viola canadensis L. Sp. Pl. ii, 986 (1753). 
Common: Little Elk Canyon, altitude 1,100 m., June 29; Elk Canyon, altitude 
1,200 m., June 29; Rochford, altitude 1,600 m., July 11 (No. 549), 
Viola nuttallii Pursh, I]. i, 174 (1814). 
Prairies and rich valleys: Custer, altitude 1,650 m., June 3; Hot Springs, altitude 
1,050 m., June 12 (No. 550). 
Viola pubescens Ait. Hort. Kew. iii, 290 (1789). 
Rare: Elk Canyon, altitude 1,200 m., June 29 (No. 551). 
Viola scabriuscula (Torr. & Gr.) Schwein.; Torr. & Gr. Fl. i, 142 (1838), as 
synonym; Viola pubescens scabriuscula Torr. & Gr. loc. cit. 
This plant has nearly always one or more radical leaves at the time of blooming, 
while IF. pubescens seldom has any. 
Elk Canyon, altitude 1,100 m., June 29 (No. 552). 
POLYGALACES. 
Polygala senega latifolia Torr. & Gr. F]. i, 151 (1838), 
It is not uncommon in the northern part of the Black Hills. Elk Canyon, altitude 
1,300 m., June 380; south of Lead City, altitude 1,600 m., July 6; near Bull Springs in 
the Limestone District, altitude 1,900 m., July 26 (No. 553). 
Polygala alba Nutt. Gen. ii, 87 (1818). 
Hills below Hot Springs, altitude 1,000 m., June 17; 15 miles east of Custer, alti-_ 
tude 1,400 m., July 22 (No. 554). 
Polygala verticillata L. Sp. Pl. ii, 706 (1753). 
Fifteen miles east of Custer, on French Creek, altitude 1,400 m., July 22 (No. 555). 
CARYOPHYLLACES,. 
Saponaria vaccaria L. Sp. Pl. i, 409 (1753). 
On the railroad embankment south of Minnekahta, altitude 1,270 m., August 4 
(No. 556). 
Silene antirrhina L. Sp. Pl. i, 419 (1753). 
