74 FLORA OF THE MONTANA FORMATION. 
DlOSPYBOS BRACHYSEPALA Al. Br. 
PI. XVIII, fig. 3. 
Diospyros brachysepala Al. P>r., Leon and Bronn, Juhrb. f. Mineral, 1845, p. 170 (1845); 
Heer, Fl. Tert. Helv., Vol. Ill, p. 11, PL C1I, figs. 1-14 (1859); Lesquereux, Ann. 
Rept. U. S. Geol. and Geog. Surv. Terr., 1872, p. 394 (1873) ; ibid., 1873, pp. 387, 401 
(1874); ibid., 1874, p. 306 (1876); ibid., 1876, p. 511 (1878); Bull. U. S. Geol. and 
Geog. Surv. Terr., Vol. I, p. 367 (1875); Tert. Fl., p. 232, PI. XL, figs. 7-10; PI. 
LX1IL fig. 6 (1878) ; Cret. and Tert. FL, p. 174, PI. XXXIV, figs. 1-2 (1884) ; Proc. 
U.S. Nat. Mus., Vol. X, p. 41(1887) ; Ward, Syn. Fl. Lar. Gr., p. 556, PI. LX, figs. 4, 5 
(1886) ; Types Lar. Fl., p. 104, PI. XLIX, figs. 1, 2 (1887). 
This species is very widely distributed, being especially abundant in 
the European Miocene. The specimens upon which its presence in 
American straia rests are preserved in the United States National 
Museum (Nos. 339, 340, 792, etc.), and, although not present in the 
numbers that apparently characterize certain European formations, 
they agree fairly well with many that have been referred to this 
species. 
In America, however, this species can not be used as a stratigraphic 
mark, for specimens referred to it have been found in the Montana 
formation, lower or true Laramie, Denver beds, Fort Union, Green 
River group, and Miocene. It seems probable, therefore, that if we 
could have a representative series of specimens from each of the above 
horizons we should be able to separate them into more than one 
species. It is a noticable fact, however, that although found in several 
horizons it is most abundant in the Laramie, and the specimens about 
which there is the most doubt occur in the overlying formations. 
Habitat — Point of Rocks, Wyoming, and many other localities, as 
indicated in the above diagnosis. 
Carpites triangtjlosus Lx. 
Carpites triangulosus Lx., Tert. FL, p. 302, PI. LX, fig. 4 ; PL LXII, figs. 19, 20 (1878). 
Only one of the figured types of this species, the original of PI. LX, 
fig. 4, appears to be in the United States National Museum collection 
(No. 490). This specimen is recorded in the Museum register as having 
come from Carbon, Wyoming, and in the Tertiary Flora (p. 303) as 
having come from Golden, Colorado. The matrix proves that it came 
from the latter locality. 
The other specimens are said to have come from Point of Rocks, 
Wyoming, but as they can not be found there can be no certainty as to 
their habitat. 
Habitat. — Golden, Colorado ( Denver formation). Carbon, Wyoming. ? 
Point of Rocks, Wyoming. 1 ? 
PHYLLITES TRILOBA II. Sp. 
PI. XVIII, fig. 2. 
Leaf of very thin texture, broadly ovate in general outline, three- 
lobed, the lateral lobes short, rounded, separated from the larger ovate 
