490 
than in the Nebraska specimens. Little Elk Canyon, altitude 1,100 m., June 28; 
Elk Canyon, altitude 1,200 m., June 29; south of Lead City, altitude 1,700 m., 
July 6 (No. 589), 
Ceanothus fendleri Gray, Pl. Fendl. 29 (1849). 
This is common in the Limestone District, west of Custer. Bull Springs, altitude 
2,000 m., July 26 (No. 590). 
VITACESA. 
Vitis vulpina L. Sp. Pl .i, 208 (1753). 
Hermosa, altitude 1,050 m., June 24; Little Elk, altitude 1,100m., June 28; Elk 
Canyon, altitude 1,200 m., June 29 (No. 591). 
Parthenocissus quinquefolia (L.) Planch. in DC. Monogr. Phan. v, pt. 2, 488 (1887) ; 
Hedera quinquefolia L. Sp. Pl. i, 202 (1753). 
Elk Canyon, altitude 1,200 m., June 29 (No, 592). 
ACERACEA. 
Acer negundo L. Sp. PI. ii, 1056 (1753). 
In fruit: Hot Springs, altitude 1,050 m., June 18 (No. 598). 
ANACARDIACEA, 
Rhus radicans toxicodendron (L.) Pers. Syn. Pl. i, 325 (1805); Rhus texicodendron 
L. Sp. Pl. i, 266 (1753). 
For remarks on this form of the poison ivy, see page 152 of this volume. 
In the foothills: Hermosa, altitude 1,100 m., June 28 (No, 594). 
Rhus trilobata Nutt.; Torr. & Gr., Fl. i, 219 (1888), 
Ifound stems of this shrub 2.5 to 3m. high and 7 to 8 em. in diameter, and with leaf- 
lets 3 to 4 em, long. Hot Springs, altitude 1,100 m., June 11 and August 8 (No. 595). 
PAPILIONACES. 
Thermopsis rhombifolia (Pursh) Richards. Bot. App. 737 (1823); Cytisus rhombi- 
folia Pursh, F1]. Suppl. 741 (1814), 
Common: Custer, altitude 1,700 m., June 23 (No. 596). 
Lupinus sericeus Pursh, Fl. ii, 468 (1814), var. 
This is L, ornatus Dougl., var., of Newton & Jenney’s Report. ! 
The Black Hills and Wyoming specimens have the flowers dark blue and the calyx 
little gibbous, I think, however, they belong to this species rather than to L. leuco- 
phyllus, with which in some cases they have been placed. Elk Canyon, altitude 
1,200 m., June 29; near Bull Springs in the Limestone District, altitude 1,900 m., 
July 27 (No. 597). 
Lupinus parviflorus Nutt.; Hook & Arn, Bot. Beech, 336 (1840). 
Common: Little Elk Canyon, altitude 1,100 m., June 28; Elk Canyon, altitude 
1,200 m., June 29; Lead City, altitude 1,700 m,, July 4; Bull Springs, altitude 1,900 m., 
July 28 (No, 598), 
Lupinus pusillus Pursh, I'l. ii, 468 (1814). 
Hill near Fall River Falls, altitude 1,000 m., June 17 (No. 599). 
Trifolium pratense L. Sp. Pl. ii, 768 (1753). 
Escaped in meadows: Buffalo Gap, altitude 975 m., June 21; Hot Springs, altitude 
1,050 m., August 2 (No. 600). . 
Trifolium repens L. Sp. Pl. ii, 767 (1753), 
Meadows: Custer, altitude 1,650 m., August 1 (No. 601). 
Lotus americanus (Nutt.) Bisch, Litt. Ber. Linniwa, xiv, 132 (1840); Trigonella 
americana Nutt. Gen, ii, 120 (1818). 
Hills, near Whitewood, altitude 1,150 1m., July 7 (No. 602), 
—_— — 
‘Geol. Surv. Black Hills, 532 (1880), 
