knowlton] TERTIARY PLANTS OF NORTH AMERICA. 203 
Rhus deieta Heer. Fl. Tert. Helv., vol. iii, p. 83, pi. cxxvii, f. 8; pi. 
cliv, f. 26, 1859; Lx., Ann. Kept. U. S. Geol. and Geogr. Surv. Terr., 
1871, suppl., p. 12, 1871 [1872]. [Not afterwards referred to by Les- 
quereux.] 
Laramie group?: Evanston, Wyoming. 
Rhus dispersa Lx. Mem. Mus. Comp. Zool., vol. vi, no. 2, p. 32, pi. i, 
f. 23, 1878. 
Miocene: Table Mountain, California. 
Rhus? drymeja Lx.=Myrica drymeja. 
Rhus Evansii Lx. Ann. Rept. U. S. Geol. and Geogr. Surv. Terr., p. 
293, 1871 [1872]; Tert. Fl., p. 291, pi. 1, f. 4; pi. lviii, f. 5-9, 1878. 
Laramie group?: Evanston, Wyoming. 
Rhus fraterna Lx. Cret. and Tert. Fl., p. 192, pi. xli, f. 1, 2, 1883. 
Green River group: Florissant, Colorado. 
Rhus frigida Kn. Proc. U. S. Nat. Mus., vol. xvii, p. 227, pi. ix, f. 6, 
1894. 
Eocene?: Herendeen Bay, Alaska. 
Rhus Haydenii Lx. = Weinmannia Haydenii. 
Rhus Heiifleri Heer. Fl. Tert. Helv., vol. iii, p. 85, pi. cxxvii, f. 3-6, 
1859; Lx., Proc. U. S. Nat, Mus., vol. xi, p. 26, 1888. 
Miocene?: Corral Hollow, California. 
Rhus Hilliae Lx. Cret. and Tert. Fl., p. 194, pi. xli, f. 12-15, 1883. 
Green River group : Florissant, Colorado. 
Rhus membranacea Lx. Bull. U. S. Geol. and Geogr. Surv. Terr., 
vol. i, p. 369, 1875 [1876]; Ann. Rept. IT. S. Geol. and Geogr. Surv. 
Terr., p. 306, 1874 [1876] ; Tert. Fl., p. 292, pi. lxiv, f. 6, 7, 1878. 
Montana formation?: Point of Rocks, Wyoming. 
Rhus metopioides Lx. Mem. Mus. Comp. Zool., vol. vi, no. 2, p. 31, 
pi. viii, f. 12, 13, 1878. 
Miocene: Table Mountain, California, 
Rhus mixta Lx. Mem. Mus. Comp. Zool., vol. vi, no. 2, p. 30, pi. ix, 
f. 13, 1878. 
Miocene : Chalk Bluffs, California. 
Rhus myricaefolia Lx. Mem. Mus. Comp. Zool., vol. vi, no. 2, p. 31, 
pi. i, f. 5-8, 1878. 
Miocene : Chalk Bluffs, California. 
Rhus nervosa Newby. Later Extinct Floras, p. 53, 1868. 
Fort Union group: Fort Union, North Dakota. 
Rhus payettensis Kn. Eighteenth Ann. Rept. U. S. Geol. Surv., 
pt. iii, p. 733, pi. ci, f. 6, 7, 1898. 
Payette formation: Marsh, Idaho. 
Rhus Powelliana Lx. Fl. Dak. Gr., p. 155, pi. lvi, f. 4, 5, 1892. 
Dakota group: Kansas. 
Rhus psuedo-Meriani Lx. = Quercus doljensis. 
