124 DESCRIPTION OF SPECIES 



without doubt referable to the genus Aralia and represent a single species, 

 perhaps identical with Aralia multifida, Sap. 



Hab. — Golden. A. Lakes. Specimens in the Museum of Princeton 

 College. 



MAGNOLIACE.E. 

 Magnolia tenuinervis, Lesqx. 

 Plate XIX, Fig 6. 

 "U. S. Geol. Rep.," vii, p. 249, pi. xlv. figs. l-. r >. 



In the description of the species, I. c, I compared the fragments by 

 which it is represented to M. Inglefieldi, Heer, "Fl. Arct.," p. 120, especially 

 to figs. 1-3 of pi. xviii. The part of leaf now figured is exactly of the same 

 form as fig. 1 of this last plate. It is coriaceous, the surface smooth or 

 glossy, the lateral veins only being apparently not quite as strong. The 

 relation is therefore so close that it is scarcely possible to admit the differ- 

 ence as specific, the more so as some of the leaves figured in vol. vii have 

 the lateral nerves quite as strong as represented by Heer. 



Hab. — Golden. A. Lakes. Specimen in the National Museum. 



AN0NACE.3E. 



A no n a robust a, sp. nov. 

 Plate XX, Fig. 4. 



Leaves large, coriaceous, ovate-lanceolate, gradually narrowed to the pointed 

 apex, rounded at base, pinnately nerved; secondary nerves strong, close, parallel, 

 curved in passing to the borders, camptodrome. 



The leaf is about 13 centimeters long, 6 broad below the middle; the 

 borders are slightly undulate; the medial nerve is thick; the lateral (12 

 pairs) also thick, especially toward the base, are alternate, very open or 

 nearly at right angles toward the base, then gradually at a more acute angle 

 of divergence, which in the upper ones is only 30°. These veins are all 

 simple, more or less obliquely cut by strong nervilles, which are either 

 simple and continuous or anastomosing in the middle of the areas. 



The species is distantly related to Anona elliptica, Ung., "Syllog.," iii, 

 p. 43. pi. xiv. fig. 1. The nerves, however, are much stronger indeed 

 stronger than in any fossil leaf referred to this genus, and the base of the 

 leaf is rounded. 



Hab. — Golden, Colorado. R.ev. A. Lakes. 



