FLORA OF THE GREEN RIVER GROUP. 175 



Diospyros Cop can a, Lesqx. 



Plate XXXIV, Kig. 3. 

 "U. S. Geol, Rpp.," vii, p. 232, pi. xl, fig. 11. 



Though this leaf is shorter and its nervation more distinct, it. has 

 evidently the same characters as that described from Elko Station in vol. vii. 

 i^^j._Florissant. U. S. Geol. Expl. Dr. F. V. Hayclen. 



MACREIGHTIA, A. D. C. 



The fossil remains referable to this genus are represented by calyxes. 

 These are merely tripartite; those of Liospyros are generally 4 to 6-lobed. 



Macreiglitia crassa, sp. nov. 

 Plate XXXIV, Figs. 16. 17. 



Calyx tliick and coriaceou.s, trilobate; lobes cut to the middle, triaugular. 

 Hab. — Florissant ; not rare. Seen in all the collections. 



E E I C A C E JE . 



ANDROMEDA, Linn. 



"U. S. Geol. Rep,," vii, p. 234. 



Andromeda delicatiila, sp. nov. 



PlateXXXIV, Figs.lO. 11. 



Leaves subniembranaceous, not tliick, very entire, equally narrowed from the 

 middle upward to a short blunt acumen, downward to a long slender petiole; nervation 

 ■camptodrome. 



These fine leaves average 5 centimeters long and 2 broad in the mid- 

 dle where they are widest. The lateral nerves at an angle of divergence 

 of 40° curve in passing to the borders and follow them in anastomosing 

 bows. They are parallel, unequal in distance; the basilar ones follow 

 close to the borders at a more acute angle of divergence. This and the 

 smaller size of the leaves, more enlarged in the middle, separate this species 

 from A. protoffcea, Ung., in Heer, "Fl. Tert. Helv.," p. 8. pi. ci, fig. 26. 



There is in Lacoe's Cabinet a number of oblong or Unear-lanceolate 

 leaves narrowed to a long petiole, exactly similar to those of A. protogcea 

 as figured by Heer, loc. cit., but without trace of nervation. They seem 

 indeed referable to the European species. 



^ai.— Randolph Co., Wyoming. U. S. Geol. Expl. Dr. F. V. Hayden. 



