DESCRIPTIOlSr OF SPECIES— MORE^'.. 197 



pi. xxiv, fig. 4, and pi. Ixiii, fig. 'J, as also the close, oblique nervilles, are proper 

 to this genus. Tlie refi?rence of these leaves to Ficus, or to a genus of the 

 same family, seems confirmed by their affinity to Artocarpoides pourounuz- 

 formis. Sap. (Fl. Foss. de S^z., p. 357, pi. vi, fig. 7), which they closely 

 resemble, and which was formerly described as a Carpinus by Watelet on 

 account of its peculiar nervation. 

 Habitat. — Golden, Colorado. 



Ficus uncata, Lesqx. 

 Plate XXXV, Figs. 1, la, 2. 

 Ficus ulmifolia, Lesqx., Annual Report, 1871, Supplement, p. 14. 



Leaves large, coriaceous, very entire, broadly ovate, obtuse, roundetl, and declining at the base to 

 a thick hooked petiole; middle nerve thick, channeled ; lateral nerves close, parallel, caniptodron;e. 



These leaves evidently pertain to a different species, though having some 

 of the characters of the former. The middle nerve is, at least, twice as thick, 

 as also the more distant lateral ones; the petiole, ecpially much stronger, is 

 shorter and hooked, and the leaves as seen in fig. 1 are obtuse. The nervilles, 

 tliough stronger, are slightly oblique to the secondary nerves, and of the same 

 type as in the former species. The specimen in 1 o is from a different 

 locality, but by the form of the leaf and its very thick nerve it seems refer- 

 able to this species. Its relation to fossil congeners is apparently to the 

 Protqficus of the Eocene of Suzanne, like P. insignis, Sap. It has a more 

 distant affinity to Ficus? borealis, Heer, of the Baltic Miocene Flora. 



Habitat. — Carbon, Wyoming; the specimens of figs. 1 and 2. I found 

 these two specimens only in the shale above the main coal. The fragment 

 of fig. 3 is from the Raton Mountains, New Mexico, in shale intermediate 

 to the lower beds of lignite (Dr. F. V. Hayden). There are some other 

 fragments of the same locality, all representing merely the basilar part of 

 the leaves. I have recently received a fine specimen of this species, sent by 

 Mr. Geo. Hodden, from Coal Creek, Colorado. 



The name Ficus ulmifolia, is necessarily changed, being preoccupied. 



Fie 11 s Haydenii, Iiesqz. 



Plate XXX, Fig. 1. 



Ficug Basdenii, Lesqx., Annual Report, 1872, p. 394.— Schp., Pal. V4g6t., iii, p. 595. 



Leaves subcoriaceous, entire, enlarged downward, rounded and truncate to a long petiole, taper- 

 ing upward to a long, twisted acumen ; secondary nerves thin, curved in passing to the borders, cauipto- 

 drorae. 



This leaf seems referable to Ficus on account of its long twisted point, 

 which, like the general form, is related to F. appendiculata, Heer (Fl. Tert. 



