58 FLORA OF THE MONTANA FORMATION. 
This species is based on the two specimens figured. These are 
undoubtedly the same species, and they arc well characterized by the 
peculiar irregular quadrangular areolation, as well as by the peculiar 
manner of the looping of the secondaries. 
Not one of these leaves is preserved entire. The best-preserved, fig. 
5, must have been fully 10 cm. long and 4 cm. broad. The upper 
portion of this leaf is almost all preserved; it is rather abruptly acu- 
minate. The other leaf, fig. 4, has only about 5 cm. in length of the 
basal portion preserved. It has a thick petiole nearly 1 cm. long, and 
shows the base to be slightly inequilateral. The midrib is also quite 
thick, but its most marked character is the peculiar looping of the 
secondaries. 
This species is so strikingly similar in outline and nervation to Litsea 
macrophylla as figured by Ettingshausen 1 that I can but regard them 
as related. The living leaf has the same thick petiole, the secondaries 
alternate below and at an acute angle. The peculiar looping of the 
secondaries may also be observed in the living leaf. 
There are also a number of well-known fossil leaves of various genera 
to which their species has more or less resemblance. For example, it 
resembles in one or more important particulars Magnolia Inglefeldi 
Heer, 3 M. primigenia Heer, 3 M. tenuinervis Lx., 4 etc. It has also been 
likened to Ficus, but as it seems closer to the above mentioned Litsea, 
I have preferred to place it in this genus. 
Habitat. — Point of Rocks, Wyoming, north of station and midway 
of cliff. Collected by Lester F. Ward, September 3, 1881. 
Laurus primigenia Ung. 
Laurus primigenia Ung. : Lesquereux, Tert. FL, p. 214, PI. XXXVI, figs. 5, 6, 8; Ward, 
Syn. Fl. Lar. Gr., p. 553, PI. XL VI, figs. 8-10; Types Lar. PI., p. 48, PL XXIII, figs. 
8-10. 
The specimens referred to this species from the type locality for L. 
socialis can not now be found in the National Museum collections, if 
they have ever been there. They differ very slightly from that species, 
being "more narrowly lanceolate, more distinctly acuminate, and nar- 
rowly cuneate," characters which are of little weight. The nervation 
and areolation are said by Lesquereux to be of the same character. 
This species is reported by Lesquereux 5 from the Denver beds of 
Golden, Colorado, and by Professor Ward 1 ' from Carbon and Point 
of Rocks, Wyomiug. The specimen from Golden I have not seen, nor 
have I been able to detect the species among the recent material from 
there. The example from Carbon is of the same shape as many leaves 
1 Blatt-Sketlete, d. Dikotyledonen, PL XIII, fig. 2 (1861). 
2 Fl. Fosa. Arct,, Vol. II, Abtli. IV, PL LI, figs. 4-7. 
3 Ibid., Vol. VII, PL LXXXVI, fig. 8. 
4 Tert. FL, p. 249, PL LIV, fig. 2. 
5 Bull. Mus. Corap. ZooL, Vol. XVI, p. 50. 
6 Types Lar. FL, p. 47, PL XXIII, figs. 8-10. 
s 
