72 description of species. 



MAGNOLIACEtE. 



MAGNOLIA, Linn. 



Magnolia alternans, Heer. 

 "U. S. Geol. Rep.," vi, p. 92, pi. xviii, fig. 4. 



Better specimens of this species, though not many, have recently been 

 found in Kansas. 



Magnolia Capellini, Heer. 

 "Phyll. Cr6t. du Neb.," p. 21, pi. iii, figs. 5, 6. 



Leaves coriaceous, broadly oval, very entire ; secondary veins at an acute angle 

 of divergence, curving to the borders, caniptodrome. 



The leaves of this species are similar in size and shape to those 

 described as Ficus magnolkefolia, pi. xvii, figs. 5 and 6. This last figure, 

 especially, does not differ from those published by Heer, except by the 

 closer secondary veins and by the base, which is slightly decurrent in the 

 leaves of Ficus, while in fig. 5 of Heer it is abruptly rounded and subcord- 

 ate or subauricled. This appearance, however, may be merely casual, 

 resulting from the breaking of the base, as seen in all the leaves of this 

 species described by Heer in "Fl. Arct.," vol. iv, pi. xxxiii. Two speci- 

 mens of this species found in Colorado have the base decurrent upon a 

 short petiole, and the nervation of the species. 



Hab. — The two specimens mentioned above (Nos. 12 and 126 of the 

 collection of the Museum of Comp. Zool., of Cambridge) are from Mor- 

 rison, Colorado, found by A. Lakes. I have received a number of others 

 more or less fragmentary from Kansas. 



Magnolia speciosa, Heer. 



"Molet. Fl.," p. 20, pi. vi, fig. 1; ix, fig. 2; x; xi, fig. 1. 



Leaves large, coriaceous, elliptical-ovate, narrowed upward into a long acumen 

 and downward to a thick petiole; medial nerve thick; secondary nerves curved, camp- 

 todrome. (Heer.) 



The leaves of this species are enlarged in the middle and more rap- 

 idly attenuated to along acumen and to the petiole than in the preceding. 

 The medial nerve is much thicker. The specimens which I refer to it 

 differ in nothing from Heer's figure except, perhaps, by the lateral nerves. 



