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Show APPENDIX D.- BOTANT. 891 from one root. Leaves somelrhat fleshy, 4en6ely clothed with a white tomentum; the lobes very small, obtuse, and muck crowded. Heads few ( 8- 6) in a terminal corymb. Flowers of the ray and disk nearly alike, funnel- form. Pappus of about ten oblong, obtuse, denticulate scales; five of which, in the disk flowers, are nearly as long as the tube of the corolla, and the five other about half as long. Scales in the ray flowers much shorter than, the corolla tube. Plate VII. ChenacttB achilUcefolia, of the natural size. Fig. 1, a head' of flowers. Fig. 2, an exterior scale of the involucnftn. Fig. 8, an interior scale of the same. Fig. 4, a disk flower. Fig. 5, cross section of an acheniuin. Fig. 6, a ray flower. Fig. 7, branches of the style and appendages. Fig. 8 and 9> scales of the pappus from a disk flower. LAYIA GLANDULOSA, Hook, and Arn., Torr. and Gray, Fl. 2, p. 894.- Valley of the Salt Lake, east side. ACHILLEA MILLEFOLIUM, Lin.- Islands of the Salt Lake, June. ARTEMISIA TRIDENTATA, Nutt. in Trans. Amer. Phil. So< J. ( n. ser.) 7, p. 898.- Green River, Sept. 12. Many of the larger species of the genus are called " Sage" by the hunters and emigrants. A. FRIGKDA, Willd.; Torr. and Gray, FL 2, p. 424.- With the preceding. A. NLXJDOVICIANA, Nutt,, gen. 2, p. 148.- With the preceding. A. CANADENSIS, Mich., FL 2, p. 129.- With the preceding. SENECIO FIJJFOLIUS, Nutt. in Trans. Amer. Phil. Soc. ( n* ser.) - 7, p. 414.- Green River, September. • S. HTDROPHILUS, Nutt. 1. c- Valley t> f the Salt Lake. & HOOKERI, Torr. and Gray, Fl. 2, p. / 488.- Weber Rive*, May 16. Scales of the involucre with black villous tips. ' TETRADYMIA NUTTALLII, Torr. and Gray. T. $ pin6da, Nutt., 1. c.- Shore of the Salt Lake, May 5. A thorny shrub, about four feet high. CIRSIUM UNDULATUM, Spreng.- Stansbury's Island, Salt Lake. Fl. June 24. % STEPHANOMERIA RITNCINATA, Nutt. in Trans. Amer. Phil. S6c. 7, p. 427<- s- Carrington, s Island, Salt Lake. |