lESQUEEEux.] PALEONTOLOGY LIGNITIC FLORA SPECIES. 415 



Weinmannia, Eos^polia, sp. nov. 



A compound, imparipinnate leaf, with 3 to 5 pairs of- narrowly 

 elliptical leaflets, obtusely pointed, rouuded to the sessile base, the 

 terminal leaflet only short-petioled, obtusely serrate toward the point, 

 entire from the middle downward ; medial nerve thick, half-round ; lat- 

 eral veins and areolation obsolete; rachis half-round, narrowly margined. 

 The dentation of the leaves is not distinct ; some leaflets, separated from 

 the rachis upon the same piece of shale, are smaller and have entire 

 borders. I refer tbis leaf to the genus Weinmannia on account of the 

 likeness of these remains with livinigj species of this genus figured in 

 Fl. V. Haring by Ettinghausen, (PI. xxiii, Figs. B, C.) In these 

 American forms, the rachis is not alate; it is so, however, in W. Glabra, 

 DC, whose leaflets, though much smaller, have the same form. In the 

 leaves of this genus, the secondary nervation is also mostly obsolete or 

 scarcely distinct ; the surface being generally covered with villous hairs. 

 In the fossil species, the base of the leaflets seems to bear a thick tuft 

 of hairs. The specimens are very fine. 



Mahitat. — West of Florisaut, Dr. A. C. Peale. 



Sapindus angijstifolius, sp. nov. 



Leaves compound, imparipinnate ; racMs thick, flat, but not winged ; 

 leaflets linear-lanceolate, entire, unequilateral, larger above the base at 

 the ui)per side, tapering gradually upward to a slightly reflexed or 

 straight acumen, rounded and narrowed to a very short margined peti- 

 ole or sessile ; nervation and areolation of the genus. The leaf bears 

 about 6 pairs of alternate leaflets ; the upper lateral ones erect along the 

 terminal, the others half open. This species is represented by a large 

 number of specimens. 



Hahitat. — Middle Park, Br. Sayden; near Florissant, South Park, 

 Prof. Cope. 



Sapindus cobiaceus, sp. nov. 



Leaflets thick, large, oblong-lanceolate, entire, with borders reflexed; 

 slightly unequilateral and scythe-shaped, short-petioled ; middle nerve 

 thick; secondary veins open, scarcely discernible; surface polished. 

 This species is distinct by the thickness and leathery texture of the 

 leaves, which are long comparatively to their width. All the leaflets 

 are isolated, or separated from the main rachis. 



Habitat. — Elko Station, Frof. Cope. 



Staphylea acuminata, sp. nov. 



Leaves trifoliate, at the top of an elongated common pedicel ; lateral 

 leaflets opposite, rounded, to the short-petioled base, ovate-lanceolate 

 acuminate, crenulate to near the base; medial or terminal leaflet longer- 

 pointed, attenuated to the base, with a longer pedicel ; secondary veins 

 alternate, camptodrome, curving to and along the borders, with slender 

 ramifications entering the teeth. The areolation of this leaf, the form 

 of its leaflets and their relative position, &c., are similar to those of the 

 living American S. trifoliata, L. The species merely diflers by the 

 longer tapering point of the leaflets and the short petiole of the mid- 

 dle one ; the divisions of the borders are of the same kind. 



Habitat. — Middle Park, Dr. Hayden. 



Ilex spnENOPHYLLA(?), Heer. 



A very small leaf, 12 millimeters long, 7 millimeters broad, oval, 

 rouuded In narrowing to tlie point and to the base; distantly acutely- 



