499, A. nuttallii, 7+9, Oct. 11, 1867 W. Humboldt Valley - Salt grass meadow " 15 " Cheekin's Station July 24, 1868 Ruby Valley Aug. 1, 7:30 " " 4:30 " alkali meadow " 20 " Huntington Valley - meadow Oct. 3, 1869 Kaht River Valley - Clear Creek June 21, 1869 Salt Lake Valley - roadcut below Farmington 500, A. falcaria (in Grey's Spring) - nuttallii, var. falcata Camp 12 WMS " 14 (165) " W. Humboldt Mt., Wrights cairn 501. A. wiliplex, Mtt. ? Camp. 12 (132) WMS, Trucker meadows 502. A. carnea var. subapicar, 7+9, Aug. 20, 1868 Huntington Valley - meadow 503. A. amphus, lind July 24, 1869 Kaht River bottom, near Evanston 504. A. Douglasii, lind Camp. 14 (160) WMS Wrights cairn Aug. 17, 1867 W. Trucker Mts., Stream bank, 7,000 ft. Sept. 10, " W. Humboldt Mts. Aug. 25, 1868 S. Humboldt Mts. - Poplar Creek Sept. 1, " Ruby Valley - stream bank " 20, " Healy Humboldt Valley July 13, 1869 Mouth of Cottonwood cairn Aug. 16, " Near Coalville " 14, " Cottonwood cairn, below Lake 505. A. laxiflorus, Mtt. Sept. 30, 1864 Leam Creek Valley - N.E. Nevada