knowlton,] TERTIARY PLANTS OF NORTH AMERICA. 201 
Rhamnus goldianus Lx. Ann. Rept. U. S. Geo!, and Geogr. Surv. 
Terr., p. 381, 1872 [1873]; Tert, Fl., p. 281, pi. liii, f. 4-8, 1878. 
Berchemia niultinervis Ward. Bull. U. S. Geol. Surv., uo. 37, p. 73, pi. xxxiii, 
f. 2, 1887. 
Denver group : Golden and Silver Cliff, Colorado, etc. 
Rhamnus goldianus latior Lx. Ann. Kept. U. S. Geol. and Geogr. 
Surv. Terr., p. 381, 1872 [18731. [Apparently not afterwards referred 
to by its author.] 
?: Golden, Colorado. 
Rhamnus intequalis Lx.=Diospyros brachycepala. 
Rhamnus inaequilateralis Lx. Fl. Dak. Gr., p. 170, pi. xxxvii, f. 4-7, 
1892. 
Dakota group : Kansas. 
Clay marl (Upper Cretaceous) : Cliffwood, New Jersey. 
Rhamnus intermedins Lx. Ann. Rept. U. S. Geol. and Geogr. Surv. 
Terr., p. 286, 1871 [1872] ; Tert. Fl., p. 282, pi. liv, f. 3, 1878. 
Green River group: Washakie Station, Wyoming. 
Denver beds % : Golden, Colorado. 
Laramie group : Raton Pass, New Mexico ? 
Rhamnus marginatus Lx. Geol. Rept. Ark., vol. ii, p. 319, pi. vi, f. 
1, 1860; Trans. Am. Phil. Soc, vol. xiii, p. 420, pi. xxii, f. 3-5, 1869. 
Eolignitic: Mississippi. 
Rhamnus Meriani? Heer. Lesquereux, Ann. Rept. U. S. Geol. and 
Geogr. Surv. Terr., p. 405, 1873 [1874]. [Not afterwards recognized.] 
Laramie group % : Black Buttes, Wyoming. 
Rhamnus Mudgei Lx. Fl. Dak. Gr., p. 169, pi. xxxvii, f. 2, 3, 1892. 
Dakota group : Kansas. 
Rhamnus notatus? Sap. Ann. d. Sci. Nat., 5th ser. bot., vol. viii, p. 
108, pi. xi, f. 8, 1867; Lx., Cret and Tert. Fl., p. 189, pi. xxxviii, f. 15, 
1883. 
Green River group : Florissant, Colorado. 
Rhamnus obovatus Lx. Am. Journ. Sci., vol. xlv, 2d ser., p. 207, 
1868; Tert. Fl., p. 281, pi. liv, f. 1, 2, 1878. 
Laramie group?: Purgatory Canyon, New Mexico; Golden, Colo- 
rado ? ; Evanston, Wyoming ? 
Eocene?: Cherry Creek, Oregon. 
Rhamnus oleaefolius Lx. Cret. and Tert. Fl., p. 189, pi. xxxviii, f. 14, 
1883. 
Green River group : Florissant, Colorado. 
Rhamnus parvifolius Newby. Proc. U. S. Nat. Mus., vol. v, p. 511 ? 
1882 [1883]. 
Fort Union group: Valley of the Yellowstone, Montana. 
Rhamnus prunifolius Lx. Cret. and Tert. Fl., p. 85, 1883; Fl. Dak. 
Gr., p. 169, pi. xxxv, f. 14, 1892. 
Dakota group : Kansas. 
