378 GEOLOGICAL SUEVEY OF THE TERRITORIES. 



opposite and parallel, pass in a more open angle to the borders, where 

 they slightly and abruptly curye. The lowest pair, only branches outside. 

 But for the indistinct borders near the point, this form is well identi- 

 fied with Goppert's species. 



QUERGUS. STRAMINEUS, sp. nOV. 



Leaves small, broadly ovate, obtusely pointed, rounded to the base, 

 and abruptly recurved to the petiole, entire; nervation pinnate, sec- 

 ondary veins thick, parallel, camptoclrome. 



The leaf is 4 cent, long, 22 mill, broad, the secondary veins equidis- 

 tant, diverging 40° from the medial nerve, curving slightly to near the 

 borders, where they divide in two equally thick branches, anastomosing 

 up and down with divisions of the other veins. The nervation is the 

 same as in Quercus Desloesii^ Heer, (Fl. Tert. Helv., p. 56, PI. Ixxviii, 

 Fig. 7,) except, however, that the veins are less distant, not undulate, 

 and without intermediate, shorter veinlets; the veins are distinct, 

 shining, yellow. 



Quercus ajstgustiloba, Al. Br. 



We have two fine specimens of this rare Eocene species. Though not 

 quite entire, they are positively identified. One is a large leaf as the 

 one described and figured by Ludwig in Paleont., vol. viii, p. 103, PL 

 sxxvi. Fig. 3. The lobes of the leaves are long, diverging, linear 

 lanceolate, obtusely pointed. Heer has published it from the lignitic of 

 Borustaedt. 



Fagus feroni^, Ung. Chlor., p. 106, PI. xxviii, Fig. 3-4. 



Leaves ovate, pointed, irregularly dentate above the middle, rounded 

 or attenuated to a slender petiole, nervation simple craspedodrome. 



One of the leaves is somewhat large, the lower part is destroyed. It 

 appears rounded to the petiole. The other is a smaller leaf, lanceolate- 

 pointed, with the veins on a more acute angle of divergence. Both 

 forms are represented in the Bil. flora of Ettinghausen, PI. xv, the 

 first leaf like Fig. 20, the second like Fig. 16. The lower veins of the 

 small leaf" have strong fibrillae downward, like thin secondary veins. 



UlMUS (?) IRREGULARIS, sp. noV. 



Leaf large, coriaceous, oval-oblong, narrowed or wedge-form to the 

 petiole, nervation pinnate, secondary veins close and deeply marked. 



"The borders upward and the point are destroyed in all the specimens. 

 The secondary veins are close, 16 pairs in part of a leaf 8 cent, long, 

 (angle of divergence 40°) straight from the medial nerve, except near 

 the base, where they curve slightly downward in joining it, generally 

 simj)le, some anormally forking from near the base ; fibrillose. Though 

 the nervation and facies are those of Ulmus, the leaves are doubtfully 

 referable to this genus on account of the unknown disposition of the 

 veins along the borders. 



FiCUS ASARIFOLIA, Ett., Bil. Fl., p. 30, PI. XXV, Fig. 2-3. 



The leaf representing this species is larger than those described by 

 the author ; it is, however, positively reierable to it by its form, its 

 crenulate border, and its nervation. . 



