398 GEOLOGICAL SURVEY OF THE TERRITOEIES. 



drome ; veins curving close to the borders and following them, anas- 

 tomosing downward with thick nervilles, in right angles to the second- 

 ary veins. The impression of the leaf upon the stone is deep, and, there- 

 fore, it represents apparently a coriaceous leaf, a character which is not 

 mentioned in the description of the author. (Paleont., vol. viii, p. 99, PI. 

 xxrii, Fig. 4.) All the veins, like the nervilles, are coarsely marked. 

 Sabitat.— Golden. 



QUERCUS FUECINERVIS, KoSSm. 



Leaves subcoriaceous, lanceolate, more generally oblanceolate, rapidly 

 narrowed to an acute point, tapering downward and rounding from near 

 the base to a short petiole, distantly and regularly dentate from near or 

 above the base ; lateral veins parallel, at equal distance, (11 pairs in a 

 leaf of 10^ centimeters long.) slightly curving in passing up to the bor- 

 ders, mostly simple, all craspedodrome, rarely forking near the point by 

 an upper thin tertiary vein passing upward under the base of the teeth ; 

 nervilles distinct, in right angle to the veins, forming by cross branches 

 large rectangular areas. The lower part of the leaves is generally entire^ 

 and the lowest veins camptodrome or undulating in ascending along th^ 

 borders. When dentate near the base, the lower veins enter the teeth. 

 Heer, in describing Q. Btirmensis, de la H., (in Fl. Tert. Helv., Ill, p. 

 315, foot-note,) says that the form of leaves, dentation, and nervation of 

 this species identify it to Q. furcinervis, from which, however, it differs 

 by the absence of an upper branch on the point of the secondary veins. 

 In the leaves of Oregon most of the secondary veins are simple, rarely 

 one or two are seen with the upper small branch passing up under the 

 teeth. These leaves, therefore, are referable as well to Q.furcmervis as 

 to Q. Burmensis. 



EaMtat. — Oregon, under the lava-beds of the Cascade Mountains, 

 Prof. Jos. Le Gonte ; clay-beds of Spanish Mountains, California, Prof. 

 Whitney. Golden, in fragments. 



QUEROUS G-OLDIANUS, Sp. nOV. 



Leaves oblong, rounded to an obtuse point, narrowed to the base (?) 

 (destroyed,) with borders undulate or slightly rarely dentate with short 

 obtuse teeth ; nervation camptodrome and craspedodrome. 



This species may be a mere deviation of the former, though the leaves, 

 for their point, at least, are far different. The nervation is the same ; 

 the borders of the leaves undulate, entire, except near the middle, where 

 they are distantly dentate, the teeth being then entered by the point of 

 the secondary veins, which forks under the base of the teeth by a small 

 border-branch. The nervation is, therefore, the same as in the former 

 species, modified only according to the divisions of the borders of the 

 leaves, which are either entire, with secondary veins camptodrome, or 

 dentate, with the same veins craspedodrome. The nervilles are also of 

 the same character, like the details of areolation. The form of the 

 leaves, however, especially at the entire obtuse point, is far different, 

 and in one of the leaves the borders seem to be perfectly entire or 

 merely undulate. There is onl^^ in the collection two specimens, one 

 representing the upper part of a leaf, the other a longer and larger leaf, 

 with the point and the base destroyed. 



Habitat. — Golden. 



QUERCUS ATTENUATA (?), Gopp. 



Leaf oval-oblong, narrowed downward to a slender petiole and up- 

 ward to a short point; penniuerve; lateral veins nearly opposite, at au 

 acute angle of divergence, slightly curving in passing to the borders 



