knowlton.] DESCRIPTION OF SPECIES. 51 
FlCUS DALMATICA Ett. 
PI. VIII, fig. 4. 
Ficus dalmatica Ett., Eoc. Fl. Mt. Promina, p. 29, PL VII, fig. 11 (1855); Lesquerenx, 
Ann. Kept. U. S. Geol. and Geog. Surv. Terr., 1874, p. 303 (1875); Tert. FL, p. 
199, PL LXIII, figs. 3-5 (1878). 
This European species was identified by Lesquereux with specimens 
from Point of Rocks, Wyoming. One of these specimens (No. 1394, orig- 
inal of PI. LXIII, fig. 4) is in the United States National Museum, 
and agrees exactly with the figures of this species in Ettiugshausen's 
paper (loc. cit.). A single specimen is contained in Professor Ward's 
material from Point of Kocks. 
In the recent collection from the true Laramie at the coal mine on 
Coal Creek, Boulder County, Colorado, I find a single leaf that is 
almost the exact counterpart of figs. 3 and 4 of Lesquereux's plate (op. 
cit.). There can be no doubt of the correctness of this determination. 
Habitat. — Point of liocks, Wyoming. Coal Creek, Boulder County, 
Colorado. 
Ficus u;i;egulaeisLx. 
Ficus irregularis Lx., Bull. U. S. Geol. and Geog. Surv. Terr., Vol. I, p. 368 (1875); 
Tert. FL, p. 196, PL XXXIV, figs 4-7; PL LXIII. fig. 9 (1878). [Non Ward. 
Types Lar. FL, p. 38, PL XX, fig. 4 (1887).] 
Ulmus? irregularis Lx., Ann. Rept. U. S. Geol. and Geog. Surv. Terr., 1872, p. 378 
(1873). 
This species was originally described from specimens obtained at 
Golden, Colorado, and as the type specimens are preserved in the 
United States National Museum (Nos. 296, 297), it is seen that they 
came from the Denver formation, probably of South Table Mountain. 
The species is also reported by Lesquereux in numerous well-identified 
specimens from Point of Eocks, Wyoming, but of these specimens 
only a single one (No. 295a, the original of PI. LXIII, fig. 9J is now 
to be found in the Museum collection. This example represents only 
the petiole and a small portion of the base of the leaf, but as nearly as 
can be made out it really belongs to this species. So far as I know, 
no other specimens have been obtained from Point of Kocks, although 
Professor Ward and others have made quite extensive collections from 
that place. 
Lesquereux also reports this species from Black Buttes, Wyoming, 
but the specimen or specimens from which his determination was 
made can not now be found in the Museum collection, and in fact does 
not appear to have ever been there; and as no other specimens have 
been collected in that locality, the determination is more or less open 
to question. 
The leaf referred to Ficus irregularis by Ward l is, with little doubt, 
1 Types Lar. Fl., p. 38, PI. XX, fig. 5. 
