MIOCENE FLORA— BAD LANDS. 233 



MAGNOLIACEJi:. 



MAGNOLIA.. Linn. 



"U. S. Geol. Rep.," vii, p. 247. 



Magnolia Hilgardiana, Lesqx. 



Ibid., p. 249, pi. xliv, fig. 4. 



A fine fully -preserved specimen of a leaf of this species is in Professor 

 Winchell's collection from the Yellowstone Valley. 



TILIACE^. 



TILIA, Linn. 

 Tilia antiqua, Newby. 

 "Later Ext. Fl. of N. Am.," p. 52, pi. xvi, figs. 1,2. 



The leaf representing this species is a little smaller than those figured 

 by Dr. Newberry. It is oval in outline, broadly deltoid to the obtuse apex, 

 rounded and subcordate at base, 8 centimeters long, 7 broad, very obtusely 

 and broadly crenate on the borders, the teeth being still broader and more 

 obtuse than figured by the author. 



ffab. — Yellowstone Valley. Sent by Professor K H. Winchell. 



ACERACE^. 



ACEE, Adana. 

 Acer arcticum, Heer. 

 Plate XLIX, Figs. 8, 9. 

 Heer, "Fl. Arct," iv, p. 86, pis. xxii, xxiii, xxiv, fig. 1; xxv, figs. 1-3. 



Leaves long petioled, cordate, emarginate at base, palinately flve-iierved, sliort- 

 lobate or without lobes; lobes uiieciual, coarsely dentate on the borders; teeth unequal, 

 obtuse; fruits broadly alate, the wings diverging, not sinuate at base; seed.s short- 

 ovate. 



The description is copied from Heer, loc. cit, and the fragments of 

 leaves which I refer to the species represent only part of the characters- 

 fig. 8, the lobate, obtusely dentate borders; fig. 9, the basilar nervation. 



