202 THE FLOEA OP THE DAKOTA GROtJP. 



Heer (loc. cit.) has figured two fragmentary leaves, the upper part 

 only of this fine species, which is distinctly characterized by the obtuse 

 apex, the great distance and the position of the secondaries. The best pre- 

 served leaf of this species (Fig. 6) is 8°"' long, enlarged upward and obtuse 

 at apex, the base gradually narrowing to the petiole, which is 2.5"'" long. It 

 has five pairs of secondaries at unequal distances, alternate, more open in 

 joining the midrib, at an angle of divergence of 50°, nuich curved in trav- 

 ersing the blade, simply camptodrome. The other leaf is larger, being 

 15*"" long, with apex partly destroyed and the secondaries equally distant, 

 but a little less open in joining the midrib. Each of these leaves repre- 

 sents the essential characters of the species. 



Habitat: Near Fort Harker, Kansas. No. 278(J of the U. S. National 

 Museum. 



Magnolia Boulayana, sp. nov. 

 PI. LX, Fig, 2. 



Leaf coriaceous, oblong, equally narrowed and cuneiform at base as 

 well as in rounding to the l)lunt apex, entire; l)orders parallel at the middle; 

 midi-ib narrow ; secondaries very thin, distinct, oblique, camptodrome, with 

 few branches. 



This leaf, which is 13"™ long and 4"" broad, with parallel borders, has 

 the aspect of a Laurus. It is, however, distinctly parallel on the liorders, 

 with all the secondaries, of which there are eleven pairs, ecpiidistant, par- 

 allel, and at an acute angle of divergence (-AO"^), as is ilf. loi/f/rpetiolofd Ett.^ 

 It resembles this last species, being, however, .somewhat smaller and more 

 rapidly narrowed to the base, with a naiTOw, percurrent midrib. It is 

 closely allied, especially by its nervation, to 31. Ludwif/ii Ett. of the Euro- 

 pean Oligocene. 



Habitat: Ellsworth County, Kansas. No. lli)l of the collection of 

 Mr. a. D. Lacoe. 



Magnolia speciosa Heer. 

 PI. LX, Figs. 3, 4. 



Kreidefl. v. Moletein p. 20, PI. vi. Fig. 1 ; PI. x. Figs. 1, 2 : PI, xi, Fig. 1 ; Lesqiiereiix, 

 Cret. and Tert. Fl., p, 7i, 



Though the leaves are somewhat smaller than those figured by Heer 

 in the Flora of Moletein, they are evidently referable to this species, since 

 they diff"er from all the relatives, 31. CiipeUiiiU., 31. aniplifolia, etc., by the long 



' Flora V. Bilin, pt. 3, p. 9, PI. xu, Figs. 8, 9. 



