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Claytonia perfoliata amplectens Greene, Fl. Fran. 179 (1891). 
It is smaller than the typical C. perfoliata, has smaller flowers and shorter pedicels; 
the involucral leaves united only on one side. It has been collected by Dr. Vasey, 
in the State of Washington, and by C, V. Piper, near Seattle, same State. 
Hills, near Whitewood, altitude 1,200 m., July 7 (No, 570). 
HYPERICACES.. 
Hypericum canadense L. Sp. Pl. ii, 785 (1753), 
Low grounds, north of Custer, altitude 1,700 m., August 20 (No. 572), 
MALVACEA. 
Malveopsis coccinea (Nutt.) Kuntze, Rev. Gen. Pl. 72 (1891); Malra coccinea 
Nutt. Fraser’s Cat. (1813). 
Hillside, above Hot Springs, altitude 1,100 m., June 14 (No, 580), 
LINACES. 
Linum lewisii Pursh, Fl. i, 210 (1814). 
Hillsides: Hot Springs, altitude 1,100m., June 14; Elk Canyon, altitude 1,200 m., 
June 29; Rochford, altitude 1,700m., July 12; Custer, altitude 1,700 m., July 15 
(No, 581). 
Linum rigidum Pursh, Fl. i, 210 (1814). 
Rare: Hot Springs, altitude 1,100 m., June 15 (No. 582). 
GERANIACES. 
Geranium richardsonii Fisch. & Mey. Ind. Sem. Petrop. iv, 37 (1837). 
The most common species in the Black Hills. The tlowers are nearly always white 
or light pinkish with purple veins. Valleys: Elk Canyon, altitude 1,300 m., June 
29; Rochford, altitude 1,600 m., July 11; Sylvan Lake, altitude 2,000 m., July 21 
(No. 583). 
Geranium viscosissimum Fisch. & Mey. Ind. Sem. Petrop. xi, Suppl. 18 (1843) ; 
Geranium incisum Nutt.; Torr. & Gray, Fl. i, 206 (1838), not Andrews, Bot. Rep. 67 
(1814). 
Rochford, altitude 1,600 m., July 11; Bull Springs, altitude 1,900 m., July 27 
(No, 584). 
Geranium carolinianum L. Sp. Pl. ii, 682 (1753), 
Elk Canyon, altitude 1,200 m., June 29; Whitewood, altitude 1,100 m., July 7; 
Custer, altitude 1,650 m., July 15 (No. 585). 
Oxalis stricta L. Sp. Pl. i, 485 (1753). 
Shady places among the foothills: Rapid Creek, altitude 1,100 m., June 25; Elk 
Canyon, altitude 1,200 m., June 29 (No. 586). 
CELASTRACES. 
Celastrus scandens L. Sp. PI. i, 196 (1753). 
Erect, 1 to 1.5m. high; nowhere found climbing. Rapid City, altitude 1,050 m., 
June 25; Little Elk Canyon, altitude 1,100 m., June 28; Lead City, altitude 1,600 m., 
July 6 (No. 587). 
RHAMNACES, 
Ceanothus velutinus Dougl.; Hook. Fl. Bor. Amer. i, 125 (1830). 
Not uncommon in the hills around Lead City, altitude 1,700 m., July 4 (No. 588). 
Ceanothus ovatus Desf. Hist. Arb. ii, 381 (1809). 
The common peduncles are in most cases elongated, and the leaves are thinner 
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