DESCRIPTION OF 8PECIES— ILICE^.. 271 



find iiioreovor, in soruo fossil species oi Ilex, I. ^(enophjUa, Ung., /. Berberidi- 

 folia, Ilecr, a related lyjje of nervation to that of these leaves, as figured in 

 Fl. Tert. llelv., iii, j)l. exxii, fig. 7, for the first species, and figs. 13 and 1-i 

 for tlie second. 



Habitat. — Green River, Wvoming; with tiic roriucr (£>/-. F. Y.llmjdeii). 



Ilex s II b <l c II t i c u I a I a , Lesqx 



Plate L, Kiss. r.,G, 6rt, tifc. 



Ilex milxlciiticulata, LeHqx., Auuual Report, 1873, p. 41G. 



Leaves small, coriaceous, narrowly lanceolate or linear-lanceolate ; borders denticulate from above 

 the narrowed base; lateral nerves distant, curving upward, and parallel to the borders. 



The name of this species refers to its close affinity to Heer's Ldenticulata 

 rather than to the divisions of the borders, which are more marked than in 

 the European form. The leaf of fig. 5 is larger, lanceolate, broader, and less 

 attenuated at the base than that of fig. G. Its lateral veins pass nearer to the 

 borders in their curves, but they ascend quite as high, and join the upper 

 veins outside of the middle. The details of nervation of this leaf, whose 

 point is twisted into a short, ol)tuse acumen, are obsolete. It has the 

 same texture as that of fig. 6. in this one, the lateral nerves curve upward 

 in the middle of the areas, nearly parallel to the borders, forming, by anas- 

 tomoses with the veins above, a double festoon and joined to the teetli outside 

 by small branchlets. In /. dcntkulata, Ileer (Fl. Tert. Helv., iii, p. 72, pi. 

 cxxii, fig. 20), the lateral veins reach closer to the borders, which are 

 denticulate in the upper part only. I consider the fruit in fig. G a (6 b, 

 enlarged), found upon tiie same specimen as fig. 6, as referable to this species. 

 It represents a small, crushed, berry-like drupe, with a small, ovate-pointed, 



hard nutlet, not flattened by compression. 



Habitat. — Near Florissant, Colorado {Dr. A. C. Peak). 

 Ilex clissiiiiilis,sp. uo7. 

 Plato L, Figs. 7-9. 



Qiurmis Ilicoideaf (Heer), Lesqx., Annual Report, 1871, p. 291. 



Leaves coriaceous, variable in form and size, linear-lanceolate, cuneate or narrowed to the petiole, 

 either regularly sharply dentate, or cut along the borders into distant hoiizoutal short teeth, or long 

 spiniforni divisions ; nervation subcampfodrome. 



These leaves are so widely different in their characters, especially in their 

 form and size, that they seem indeed referable at least to two species. They are, 

 however, found, the only remains of dicotyledonous, upon the same fragments 

 of shale, and have exactly the same color and consistence. The leaf of 



