Ranunculaceae. 3.- Clematis Wyethii, Nutt. Evidently the plant of Wyeth's collections, described by Nuttall. It closely resembles C. Douglasii, Hook., and may prove a variety of it. Stem from 1½ to 2½ high; flowers with nearly straight calyx lobes, upon a long naked peduncle which is erect in fruit. Variable in pubescence. a) July 3, 1869. Uintah Mts., Silver Creek canyon. In fruit. 5 sp. b) " 5, " " " Provo canyon. In flower. 6 " c) " 26, " Wahsatch Mts., near Wanship. In fruit. 3 " (Nutt, Jour. Acad. Phil. VII. 6.) 749, 31. I. 8. 4.- C. ligusticifolia, Nutt., var. C. brevifolia, 749. Frequent on stream banks in the lower canyons of the W. Humboldt Mts. and found in a single locality in the E. Humboldt Mts. - uniformly the variety with broad, subcordate 3-lobed leaflets. The narrower leaved eastern form, or an approach to it, was not met with in S.E. Idaho. (749, 31. I. 9.) a.) Sept. 4, 1867. W. Humboldt Mts., Wright's canyon. (W.W. Bailey.) Fruit. 5 sp. b.) " 9, " " " Unionville. Staminate. 4 " c.) " 19, " " " Santa Clara canyon. Both sexes. 5 " d.) Aug. 20, 1867. E. Humboldt Mts., west base. Both sexes. 6 " e.) Oct. 2, 1867. City of Rocks, Idaho. With narrow leaved form. 2 " 1.- C. alpina, Mill. Is this, or not, var. ochroleuca? Find species C. alpina. a) July 13, 1869. Wahsatch Mts., Cottonwood canyon. In flower. 9,000 ft. alt. 14 sp. b) " 14, " " Cottonwood Lake, rocks. In fruit. 9,500 ft. alt. 3 " 2.- C. verticalis, DC., var. Columbiae. Rooted mountain aido. Collected by Wyeth. Not Differing from the eastern form, except in the somewhat smaller narrower-sepaled flowers. (Clematis Columbiae, 748, Fl. I. III.) (Atagene Columbiae, Nutt., Jour. Acad. Phil. VII. 7.) [illegible] a) June 25, 1869. Wahsatch Mts., near Parley's Park. Sterile stems. 7,000 ft. alt. 3 sp. b) July 7, " Uintah Mts., near Duchesne river. " " 9,000 ft. alt. 3 " c) " 10, " Wahsatch Mts., N. Fork of Provo river. In fruit. 7,000 ft. alt. 5 " d.) Aug. 19, " " near Parley's Park. In flower & fruit. 7,000 ft. alt. 6 "