70 . THE FLORA OF THE DAKOTA GROUP. 



IIal)itiit: Near Fort Marker, Kansas. Tlie tliree specimens here 

 fij^-ured arc all nuiubered 274.S in the U. S. National Museum Catalogue. 



JUGLANDITES PRIMORDIALIS, SJ). IIOV. 



PI. XXXV, Fig. 15. 



Leaves subcoriaceous, entire, oblong-lanceohite, apparently acute (point 

 broken), rouucU^d in narrowing- to the base, inequilateral; secondaries thin 

 but distinct, nearly at right angles to the median nerve, parallel, campto- 

 drome, curving at a distance from the borders and joined in bows by anas- 

 tomosing with each other or with intermediate tertiaries. 



This leaf, which is about 8°"' long, is curved in the middle and is broader 

 on one side. It has no affinity to any species from the Cretaceous, but is 

 related to leaves from the Miocene, being especiall}' similar to those of Jug- 

 lans duhia Ludw., figured in Palaeontographica, vol. 8, p. 14(», PI. lix. Figs. 

 1, 2, and to those of some varieties of J. acuminata Al. Br. 



Habitat: Pipe Creek, Cloud County, Kansas. No. 4096b of the col- 

 lection of Mr. R. D. Lacoe. 



Jtjglandites ellswobthiantts, sp. nov. 

 PI. XXXVII, Fig. 1. 



Leaflets large, coriaceous, oblong-lanceolate, rounded and slightly 

 luiequal at base, penninerved; median nerve thick; secondaries oblique, 

 simple, arched near the borders and following them in simple areoles; ner- 

 villes at right angles, anastomosing with the thin tertiaries, intermediate 

 and parallel to the secondaries. 



The genus Juglandites of Sternberg has been emended and admitted 

 by Saporta for the descrij)tion of leaves or rather leaflets having a likeness 

 to those of Juglans by their form, the unequal base of the leaves, and the 

 nei-\'ation. These leaves, says the author, which are found abundantly at 

 Sezanne, generally have the borders slightly denticulate. The leaflet 

 described above and those of the following species have all the characters 

 of Juglandites, except that the borders are perfectly entire. This difference 

 does not eliminate them from that generic division, for even the species 

 described by Saporta as Jiirilandites peramplus^ shows a leaflet larger but 

 similar in form and nervation to oiu* Fig. 1, PI. XXXVII, and is represented 

 with entire, somewhat undulate borders. 



The specimen from Kansas bears the impression of a thick pinnule 



' Fl. Fobs. Suzanne, p. 418, PI. xiv, Fig. 7. 



