2<> DESCRIPTIONS OF FOSSIL PLANTS. 



Lauras californica Lx. 



Eight specimens; Museum number, 2494. 



Laurus resurgens ? Sap. 



Twelve specimens; Museum number, 2578. 

 Laurus Fursteubergii Al. Br. 



Seven specimens: Museum number, 2597. 

 Persea pseudo-carolinensis Lx. 



One specimen; Museum number, 2G28. 

 Persea puuctulata, n. sp. Plate XIV, fig. 1. 



Leaves oblanceolate, pointed at apex, gradually narrowed to tht 

 short petiole, thiekish but not coriaceous, medial nerve strong, second 

 aries at an acute angle of divergence, curving in passing toward tlm 

 borders, which they follow in a series of simple areoles, parallel, eqmi 

 distant, about ten pairs; nervilles thin, numerous, at right angles, 

 areolation irregularly polygonal or quadrangular, minutely punctulate. 



The leaves have a great degree of likeness to those o£Persea pseuda 

 carolinensis Lesqx. (in FI. of the Gold Gravel of California, PI. vn, fig. 

 1,) differing merely by being less rounded and narrower at the middle, 

 longer subilecurring to the somewhat broad and round petiole. n r " 

 long. The divergence of the secondaries, which is about the same 

 from the base upward, is 40 to 45 degrees. The essential character 

 which indicates a separation of this species from the numerous s; ecli 

 mens of Laurinese which are represented in fragments and seen to 

 constitute the whole flora of Corral Hollow, is the small points irregu- 

 larly strewn upon the surface of the leaves appearing upon the epider- 

 mis as prominent, and under it, or upon the stone, as hollow. They 

 look like points of hairs, but are not areoles of the leaves, as they are 

 very small and irregular in position and distance. For the secondaries 

 and the form of the leaves the species is comparable to Laurus superbq 

 Sap. (Etude II, 2, PI. vil, tig. 4; III, 1, PI. xv, fig. 5). The areolation 

 differs in being much larger than it is marked in this last quoted 

 figure. 



Fifteen specimens ; Museum number, 2529. 

 Rhus Heiifleri '! I leer. 



One specimen; Museum number, 2583. 



8. 



Monte Christo Tunnel, summit of Spanish Peak, Cal. Collected by 

 Mr. J. S. Diller. Age, Upper Miocene. 



Acer Bendirei, a. sp. (Sec ante, p. 11.) 



Four specimens; Museum number, 2414. 



Laurus californica Lx. 



One specimen ; Museum number, 2495. 



