(2352.) Z. elegans, Pursh, Fl. I., 241; Hook., Fl. II., 178.

Z. glaucus, Nutt.; Hook., Fl. II., 178; Macoun, Cat. No. 1826. Z. chloranthus, Richards; Hook., Fl. II., 177.

Rather rare along river banks eastward but abundant on the prairies and westward to the Pacific. Sand beach at Belledune, N.B. (Fowler, Cat.) Salt Lake, Anticosti, and on cliffs along the Gasp coast. (Macoun.) Mingan Islands and Anticosti. (St. Cyr.) Murray Bay, River St. Lawrence. (McGill Coll. Herb.) Bank of the Moira and in a field near Belleville; rocky banks Shannonville, and swamp three miles south of Marmora, Hastings Co.; marsh at Chicken Bay, Lake Huron. (Macoun.) Island Harbor, and Drummond Island, Georgian Bay. (J. Bell.) Shaded river bank, Southampton, and Elora, Ont. (Burgess.) Very common throughout the prairie region extending westward through the Rocky Mountains to the Columbia Valley at Donald. (Macoun.) Near Turtle Mountain and westward on the 49th parallel to the Milk River, and Crow Nest Pass in the Rocky Mountains. (Dawson.) Fort Selkirk, Yukon River, lat. 62° 45'. (Schwatka.) Kotzebue Sound, Port Clarence, Arctic coast and Fort Yukon. (Rothr. Alask.) Banks of the St. Lawrence, around Niagara Falls, and on the borders of Lakes Erie and Huron. In the valleys of the Rocky Mountains near the sources of the Columbia and on the banks of the Saskatchewan and. Red rivers. (Hooker, Fl)

(2353.) Z. venenosus, Watson, Proced. Am. Acad., XIV., 279.

Z. Nuttallii, Gray; Macoun, Cat. No. 1827. Leirnanthium Nuttallii, Hook., Fl. II., 177.

Quite common on the upper slopes of the Cypress Hills and westward through the foot-hills to Castle Mountain in the Rocky "Mountains. (Macoun.) Wood Mountain, 49th parallel, 1874. (Millman. Burgess.) Kamloops, B.C. (Prof. Fowler.) Lytton, B.C. (Sill.) Milk River Ridge, Alberta; Nicola Valley, and Drew Harbor, B.C. North point of Texada Island, Gulf of Georgia. (Dawson.) Abundant in the Fraser Valley; and around Victoria, Vancouver Island. (Fletcher.) Very abundant in the southern part of Vancouver Island, and extending to Qualicum and Alberni. (Macoun.) Locally named "Poison Camass," as the bulb is poisonous.

(2354.) Z. paniculatus, Watson, Rep. King's Exp. V., 344.

Helonias paniculata, Nutt, Journ. Phil. Acad., VII., 57.

Apparently rare, on the great plains, as none of our collectors, so far as I am aware, have even gathered the plant. According to Br. Watson it ranges from Nevada to the Saskatchewan.