406 GEOLOGICAL SURVEY OF THE TERRITORIES. 



brancbiug' outside, and connected by strong nervilles. Tbis form ap- 

 pears at first si)ecifically different from Heer's species and also from tbe 

 leaf referred to it from Carbon. Tbe leaves, 9 cent, broad and just as 

 loiii^, have entire undulate borders, and tbe base merely cordate. One 

 of them, the best preserved, has only three p.iirs of secondary veins ; 

 the lowest ner.rly as strong as the medial nerve, much divided outside, 

 ascending to the borders in an angle of divergence 50° ; the other, at a 

 more acute angle, 40°, branching, too, and connected with strong ner- 

 villes, the leaf, except for its form, appearing a leaf of Platanus. A 

 number of specimens, however, i)resent marked differences intermedi- 

 ate between this leaf and those from Greenland, not only in the nerva- 

 tion, but in the basilar, auriculate borders, wliich, too, in one specimen, 

 are dentate. From this, as from the leaf described at Carbon, this 

 species appears very variable and well represented in our northern Lig- 

 nitic formation. I have not seen it as yet south of Carbon. Tbe leaf 

 of ours has evidently a long petiole. 



Laurus primigenia, Ung., Fl. v. Sotzka, p. 38, PI. XIX, Figs. 1-4. 



Leaves thick, coriaceous, lanceolate, tapering to a long i)etiole ; lower 

 secondary veins at an acute angle of divergence. 



One of the specimens represents the lower half of a leaf with a still 

 longer petiole, than marked by Ungcr, loc. cit.; another has only theupi)er 

 part with the point broken. In both the character of nervation and the 

 form of tbe leaves agree with those of this species. The lowest pair of 

 secondary veins is at a more acute angle than the upper ones, and 

 ascends higher along the borders. In one of the specimens some ner- 

 villes go out from the medial nerve as intermediate veinlets to the 

 secondary veins. The ultimate divisions, however, pass into round, 

 very small, areolae, the whole of the same type as in Laurus 2}rincej)s, 

 Heer. 



QuERCUS PEALEI, Lsqx., Kept. 1871, p. 297. 



Many specimens of this fine species indicate the form of the leaves as 

 variable from broadly ovate pointed to oval lanceolate-pointed. The 

 nervation and the form of the obtuse teeth is always as described in 

 Eept., loc. cit. One of these leaves is 7i cent, long, only 2i cent, 

 broad, while another is 4i cent, broad and only 5 cent. long. 



liepresented, like the former, by specimens from all the localities of 

 tbis section. 



Platanus aoeroides, Gopp. 

 A good specimen, from six miles above Spring Canon. 



FiCUS AURICULATA, Lsqx. 



Described with specimens of Golden. The collection bas an identifiable 

 fragment, representing the lower half of a leaf from the same locality 

 as the former. 



ClNNAMOMUM ROSSMASSLERI, Heer. 



Eepresented by three specimens from six miles above Spring Caiion. 



