Acer. ACEEINEiE. 27 



Acer Bolanderi, sp. nov. 



PL VII. Figs. 7-11. 



Leaves of small size, subcoriaceous, palmately three-lobed; lateral lobes shorter titan 

 tin middle one, entire or distantly obtusely dentate; base broadly cuneate and sub- 

 cordate tn the slender petiole. 



All the specimens representing this fine species have the same char- 

 acters, the leaves trilobate, with borders either entire or cut along the 

 sides of the lobes into a few obtuse teeth. The largest of these (Fig. 7) 

 is only five and a half centimeters between the points of the lateral 

 lobes ; the smallest are not half as large. The lobes are in an angle 

 of divergence of 30° -45°, with obtuse broad sinuses. Two species of 

 the present flora of California have relation to this fossil one : Acer tripar- 

 titum, Nutt., by the form of the leaves, which are, however, of larger 

 size and acutely dentate ; and Acer grandidentatum, whose leaves are gen- 

 erally fivedobed, but which are of the same size and of the same con- 

 sistence, with lobes obtusely distantly dentate, as in this fossil species. 

 It is also comparable to Acer siibcampestre, described by Gceppert, from 

 the Miocene of Schossnitz, and to Acer Italicum, Mass., of the same for- 

 mation of Italy. The affinity is, however, distant. 



Habitat. — Table Mountain, Tuolumne County, California. Voy's Collec- 

 tion. 



FRANGULACEiE. 



ILEX, Linn. 



Ilex prunifolia, sp. nov. 



PL IX. Fig. 7. 



Leaves small, oral, obtusely pointed, rnnifl<l in narrowing t<i tin- base; middle nerve 

 t/iin : secondary nerves parallel, equidistant, curved, and camptodrome ; borders dis- 

 tantly ul>tit.-<i!i/ dentate. 



The reference of this leaf, the only one representing the species, is not 

 positively ascertainable. By the camptodrome direction of its secondary 

 nerves it resembles the living I. decidua, Walt, which has the same bor- 

 der divisions, and in some of its leaves the same form. The base of the 

 fossil leaf is, however, less narrowed and tapering. 



Habitat. — Table Mountain, California. Voy's Collection. 



