232 UNITED STATES GEOLOGICAL SUKVEY— TERTIARY FLORA. 



Diospyros brncbysepala, Al. Br. 



Plate XL, Figs. 7-10 ; Plate LXIII, Fig. 6. 



Diospijroa brachysepala, Al. Br., Bronn &Leon., Jahrb. f. Mineral., 1845, p. 170. — Ung., Blattabdr. v. Swos- 

 zowice, pi. siv, fig. 15. — Heer, Fl. Tert. Helv. iii, p. 11, pi. cii, figs. 1-14; cliii, fig. 39 6; Fl. 

 Foss. Arct., p. 117, pi. xv, figs. 10-12; xvii, figs. 5, h, i; xlvii, figs. 5-7; Mioc. Bait. Fl., p. 84, 

 pi. xxvii, figs. 1-6 ; xxviii, fig. 1 ; Fl. v. Bornst., pi. iii, figs. 7-8. — Sism., Mater., p. 55, pi. xvi, 

 fig. 5; xix, tig. 3.— Ett., Foss. Fi. v. Bil., ii, p. 232, pi. xxxviii, fig. 28; xxxis, fig. 1. — Lesqs., 

 Annual Report, 1872, p. 394 ; 1873, p. 401. 



Diospx/ros latifolia, Al. Br., in Bruckm. Verz., p. 232. 



Diospyros longifolia, Al. Br., iu Stizenb. Verz., p. 83. 



Tetrapteris Harpijarum, Ung., Foss Fl. v. Sotzka, pi. xxix, figs. 9, 10 (folia). 



Getonia macropiera et pelrewfolia, Ung., ihid., pi. xxxiii, figs. 2, 3, 4, 8 (folia). 



Getonia truncata, Giipp., Foss. Fl. v. Schossnitz, p. 37, pi. xxv, fig. 11. 



Leaves petioled, elliptical, narrowed to a point or a short acumen, rounded and attenuated to the 



base, very entire; secondary nerves alternate, inequidistant, on an acute angle of divergence, more 



open toward the point. 



The leaves of this species, thougli somewhat thick and membranaceous, 

 are not as thick nor as coarsely veined as those of the former. They are 

 as variable in form as those of the living D. Virginiana, either rounded or 

 narrowed to the base, and far different in size. All the fragments which 

 I consider as referable to the species represent it in some of its characters, 

 even the point of fig. 8 in pi. xl, though it indicates a leaf smaller than any 

 described from Europe; for the form agrees with figs. 4 and 5, pi. xxvii, of 

 the Baltic Flora. As seen in our figs. 7 and 9, the base is attenuated or 

 rounded, as represented by the leaves referred to this species by European 

 authors. 



Habitat. — Golden, Colorado, and Black Buttes and Point of Rocks, 

 Wyoming. 



Diospyi'os Copeana, Lesqz. 



Plate XL, Fig. 11. 



Diospijros Copeana, Lesqx., Annual Report, 1873, p. 414. 



Leaf very entire, obovate, gradually narrowed downward to a short petiole, rounded upward to 

 an obtuse point ; midrib thick, scarcely thinning upward; secondary veins thin, camptodrome. 



The leaf is of small size, seven centimeters long and half as wide, not 

 thick; the lateral veins, distinct though thin, at an open angle of divergence, 

 are more or less curved in passing to the borders, where they form, by anas- 

 tomose of the nervilles, a double series of bows; the intermediate tertiary 

 veins are distinct; the areolation obsolete. By its gradually narrowed base, 

 this leaf is different in form from the fossil species of this genus. In pi. iii, 

 fig. 8, of the Bornstadt Flora, Heer represents, however, as D. brachysepala, 

 one leaf whose base is narrowed as it is in this one. The characters of the 

 nervalaon refer this new species to Diospyros. 



Habitat —Elko, Nevada {Prof. E. D. Cope). 



