525 
Allium reticulatum Don, Mem. Wern. Soc. vi, 36 (1826-1831). 
Edgemont, altitude 1,050 m., June 13 (No, 1037). 
Leucocrinum montanum Nutt.; Gray, Ann. Lye. N. Y. iv, 110 (1837). 
Common around Custer, altitude 1,600 to 1,700 m., May 30 (No. 1038), 
Polygonatum biflorum commutatum (Roem, & Schult.) Morong, Bull. Torr. 
Club, xx, 480 (1893); Convallaria commutata Roem. & Schult. Syst. vii, 1671 (1830). 
Lead City, altitude 1,600 m., July 6 (No. 1039). 
Vagnera amplexicaulis (Nutt.) Greene, Man. Bay Reg. 316 (1894); Smilacina 
amplexicaulis Nutt, Journ. Acad. Phila, vii, 58 (1834). 
Wooded hillside: Lead City, altitude 1,600 m., July 6 (No. 1040). 
Vagnera stellata (L.) Morong, Mem. Torr. Club, vy, 114 (1894); Convallaria stellata 
L. Sp. Pl. i, 316 (1753), 
Rare: Elk Canyon, altitude 1,200 m., June 29 (No, 1042), 
A form with narrower, conduplicate leaves and slightly longer pedicels, corre- 
sponding to Unifolium liliaceum Greene, was also found. Hot Springs, altitude 1,100 
m., June 11 (No. 1041). 
Unifolium canadense (Desf.) Greene, Bull. Torr. Club, xv, 287 (1888); Maianthemum 
canadensis Desf. Ann. Mus. Par, ix, 54 (1807). 
In shady woods: Little klk Canyon, altitude 1,100 m., June 27 (No. 1043). 
Yucca glauca Nutt. Fraser’s Cat. 1815. 
Among the foothills, east of Custer, altitude 1,400 m., July 23 (No. 1044). 
Lilium umbellatum Pursh, I*l. i, 229 (1814). 
In woods: Little Elk Canyon, altitude 1,200 m., June 27 (No. 1045). 
Calochortus gunnisoni Waits. Bot. King Surv. 348 (1871). 
In all specimens collected by me, the bulb was only a few inches below the surface, 
and at the time of blooming without a secondary bulb. Hill above Whitewood, 
altitude 1,200 m., July 7 (No. 1046). 
Calochortus nuttallii Torr. & Gr. Pac, R. Rep. ii, pt. 2, 124 (1855). 
In this the bulb was deep down, 15 to 25 cm. below the surface, at the time of 
blooming, often with a secondary small bulb a few em. above the principal ones. 
Fall River Falls, altitude 1,000 m., June 19 (No, 1047). 
Streptopus amplexifolius (.) DC. FI. Fran. iii, 174 (1805); Uvularia amplexifolia 
L. Sp. Pl. i, 304 (1758). 
Near water: Sylvan Lake, altitude 1,900 m., July 20 and Aueust 7 (No, 1048), 
Disporum trachycarpum (Wats.) Benth. & Hook. Gen. Pl. iii, 832 (1883); Pro- 
sartes trachycarpa Wats. Bot. King Surv. 344 (1871). 
In shady places below Sylvan Lake, altitude 1,900 m., June & and August 17 
(No. 1049). 
2ygadenus elegans Pursh, I'l. i, 241 (1814), 
Little Elk River, altitude 1,200 m., June 27; Elk Canyon, altitude 1,300 m., 
June 29; Bull Springs, altitude 1,900 m., July 26 (No. 1050). 
Zygadenus venenosus Wats. Proc. Amer, Acad. xiv, 279 (1879). 
This species has been confused with Z. nuttallii. Hot Springs, altitude 1,100 m., 
June 15 (No. 1051). 
SMILACACE. 
Smilax herbacea L. Sp. Pl. ii, 1030 (1753). 
Hot Springs, altitude 1,050 m., June 19 (No, 1052), 
COMMELINACEA. 
Tradescantia virginiana L. Sp. Pl. i, 288 (1753). 
Hot Springs, altitude 1,050 m., June 13 (No, 1053), 
