491 
Psoralea tenuiflora Pursh, Fl. ii, 475 (1814). 
In the foothills, 15 miles east of Custer, altitude 1,400 m., July 23 (No. 603). 
Psoralea argophylla Pursh, FI. ii, 475 (1814), 
Rochford, altitude 1,600 m., July 12; Custer, altitude 1,650 m., July 15; Hot 
Springs, altitude 1,100 m., August & (No. 604). 
Psoralea cuspidata Pursh, Fl. ii, 741 (1814). 
Among the foothills: Fall River Falls, altitude 1,050 m., August 10 (No. 605). 
Psoralea esculenta Pursh, Fl. ii, 475 (1814). 
The specimens from Lead City are low, 7 to 10 cm. high, with obovate leaflets and 
whitish flowers. Hot Springs, altitude 1,100m., June 18; Hermosa, altitude 1,050 m., 
June 23; Lead City, altitude 1,700 m., July 4; Rochford, altitude 1,700 m., July 12 
(No. 606). 
Parosela enneandra (Nutt.) Britton, Mem. Torr. Club, v, 196 (1894); Dalea 
enneandra Nutt. Fraser’s Cat. 1815. 
Among the foothills: Hot Springs, altitude 1,100 m., August 2 (No. 607). 
Parosela aurea (Pursh) Britton, Mem. Torr. Club, v, 196 (1894); Dalea aurea 
Nutt.; Pursh, Fl. ii, 740 (1814). 
Among the foothills: Hot Springs, altitude 1,150m., August 2 (No. 608). 
Amorpha canescens Pursh, FI. ii, 467 (1814). 
Hills, 15 miles east of Custer, altitude 1,400 m., July 22; Hot Springs, altitude 
1,100 m., August 2 (No. 609). 
Armorpha fruticosa L. Sp. Pl. ii, 718 (1753). 
This was seen growing along French Creek and Fall River, but no specimens were 
secured. 
Kuhnistera purpurea (Vent.) MacMillan, Metasp. Minn. Val. 329 (1892); Dalea 
purpurea Vent. Hort. Cels. t. 40 (1800). 
Variable. Some of the specimens are pubescent on the stem, but most of them are 
glabrous and have short spikes with the calyx woolly, rather than silky. In the 
Limestone District, altitude 1,900 m., July 27; Hot Springs, altitude 1,100 m., 
August 2 (No. 610). Some of the specimens from the latter place have white flowers 
(No. 611). 
Kuhnistera candida occidentalis Rydberg, Contr. Nat. Herb. iti, 154 (1895). 
In the specimens of this collection the bracts are shorter than the calyx, in which 
respect they approach the variety multiflora. 
Hot Springs, altitude 1,100 m., August 2 (No. 612), 
Astragalus crassicarpus Nutt, Fraser’s Cat. 1813. 
Nearly all my specimens from the Black Hills have large (16 to 20 mm, long), 
ochroleucous flowers, purplish only at the tip; but without doubt they all belong 
to A. crassicarpus. Custer, altitude 1,650 m., May 31 to June 4 (No. 613). 
Astragalus sp. 
The specimens are without pods, hence can not well be determined. The plant 
may be a form of the preceding, which it resembles, thongh more upright, ascending ; 
racemes elongated (1.5 dm. long), flowers distant on upright pedicels, bracts about 
4 mm. long, calyx appressed-hairy with dark hairs; corolla dark purple. Only one 
plant found, that in full bloom on Battle Mountain, east of the Hot Springs, altitude 
1,200 m., June 18 (No. 614). 
Astragalus plattensis Nutt.; Torr. & Gr. FI. i, 332 (1838), 
Not uncommon in the southern part of the Black Hills. Hot Springs, altitude 
1,100 m., June 13, August 3 (No. 615). 
Astragalus carolinianus L. Sp. PI. ii, 757 (18535), 
Rochford, altitude 1,700 m., July 12; French Creek, 15 miles below Custer, altitude 
1,500 in., July 23 (No. 616). 
32 
