186 DESCRIPTION OF SPECIES. 



Ilex micropliylla, sp. nov. 



Leaves small, coriaceous, obovate or spatulate, rounded and denticulate at the 

 apex, narrowed to a short broad petiole; secondary nervation obsolete. 



The leaf, 2h centimeters long, 7 millimeters broad in the upper part, 

 is gradually narrowed to a petiole 7 millimeters long. Its affinity, which 

 is close indeed, is with Ilex ambigua, Ung., "Syllog.,*' ii, p. 14, pi. iii, fig. 29, 

 from which it differs merely by the gradually narrowed base of the leaf 

 and the longer petiole. 



Hab. — Florissant. No. 60 of Lacoe's Collection. 



Ilex m acu lata, sp. nov. 



Plate XLIV, Fig. 5. 



Leaves coriaceous, obovate, obscurely and irregularly crenulate, narrowed to the 

 petiole ; medial nerve narrow, the lateral at a broad angle of divergence, a little curved 

 in traversing the blade, effaced toward the borders. 



The leaf is badly preserved; its surface is maculated or gnawed by 

 parasite hypophylles or insects. Its shape and thick consistence appear 

 to refer it to this genus. 



Hab. — Alkali Station. Professor Scudder. 



Ilex Wyoiningiaua, Lesqx. 

 "U. S. Geol. Rep.," vii, p. 270, pi. 1, fig. 1. 



Ilex? af finis, Lesqx. 



Ibid., p. £70, pi. I, figs. 2, 3. 

 Ibid., p. 271, pi. 1, figs. 5, 6-65. 

 Ibid., p. 271, pi. 1, figs. 7-9. 



Ilex subdenticulata, Lesqx. 



Ilex dissimilis, Lesqx. 



Ilex quercifolia, sp. nov. 



Plate XXXVIII, Figs. 2-5. 



Leaves coriaceous, sbort-petioled, obovate, abruptly acuminate, irregularly acutely 

 dentate from near the base; secondary nerves at a broad angle of divergence, slightly 

 curved in passing to the borders, entering the teeth directly or by branchlets; inter- 

 mediate tertiary veins short, anastomosing with nervilles in the middle of the areas. 



The leaves are very variable in size (from 12 millimeters long to nearly 



6 centimeters, and 5 millimeters to 2 centimeters broad); the petiole is 



thick and short (6 millimeters long); the teeth turned outside, sharply 



