126 THE FLORA OF THE DAKOTA GHOUP. 



tliougli somewliat smaller, witli the same peculiar divisions of the seconda- 

 ries. It, however, differs from the leaves described by Heer under the same 

 uame,^ as well as from those in Ettingshausen's Flora v. Bilui,''^ the second- 

 aries of all these leaves' being simple and less curved. It has a distinct 

 affinity to C. Forschammeri Heer,^ of Atane (Cenomauian), described also 

 in this volume from specimens obtained at a higher stage of the Cretaceous. 

 Habitat: Ellsworth County, Kansas. No. 32 of the museum of the 

 University of Kansas; A. Wellington, collector. 



OORNUS PLATYPHYLLOIDES, Sp. UOV. 



PI. LXIV, Fig. 15. 



Leaves small, thickish, subcoriaceous or membranous, oval, narrowly 

 obtuse and narrowed to the base, entire; median nerve thick; secondaries 

 seven pairs, very oblique, slightly curved in traversing the lamina, parallel, 

 subopposite and subequidistant. 



The leaf, which is 4'='" long and 2"™ broad, has the secondaries diverg- 

 ing from the midrib at an angle of 30° and somewhat curved in passing 

 toward the borders, the upper pair acrodi-ome. The form, size, and mode 

 of nervation of the leaf, as well as the texture, are so remarkably similar to 

 the small leaf of G. platyphylla Sap.* that it might l)e considered as identical. 



Habitat: Ellsworth County, Kansas. No. 59-4 of the collection of Mr. 

 K. D. Lacoe. 



Nyssa Snowiana, sp. nov. 

 PI. LII, Fig. 11. 



Leaves comparatively small, ovate, abruptly contracted to a short 

 acumen, cuneate to the short, thick petiole and slightly decurring to it at 

 the base, penninerved; midrib strong, percurrent, secondaries })arallel, sidj- 

 equidistant, camptodrome, cm'ving in travei-sing the blade, branching in the 

 upper part, following quite near the borders in simple areoles. 



The leaf, which is 5*"" long and 3""" broad at the middle, is entire, and 

 has a petiole 1"" long; the secondaries, of which there are eight or nine on 

 each side, iii-c very distinctly curved in passing toward the borders, which 

 they follow in single bows. It is similar in its facies and character to N. 

 europcea Ung.,^ being only smaller. A smtdl fruit, striate lengthwise, No. 



'FI. Tert. Helv., vol. :!, p. 2fi, PI. CV.Figs. 6-9. <F1. Foss. Suzanne, p. ;591, PI. xi, Fig. 9. 

 ^Pt. 3, p. 4, pi. XL, Fig. :J2. ''Sylloge, pt. 3, p. 73, PI. xxiii, Fig. 19. 



3F1. Foss. Arct., vol. 6, a Abth., p. 85, PI. XLiv, Fig. 13. 



