132 TOE FLOKA OF TUE DAKOTA GKOUP. . 



separate lobe (PI. XXII, Fig. 5) has the teeth much larger, more tm-ued 

 upward, appearing also of a thicker texture. 



The si)ecies is so remarkably similar to A. Saportanea Lesq.^ that at 

 first sight it appears identical. It differs, however, by the coriaceous texture. 

 of the leaves, the reticulate areolation, the larger teeth, the more or less up- 

 wardly turned secondaries, which are not curved or camptodi-ome, but run 

 straight to the teeth and enter them; the base of the leaf is longer, decur- 

 rent, and the lobes more abruptly or obtusely pointed. 



Habitat: Carneiro, Ellsworth County, Kansas. Nos. 14, 14a, b, c, of 

 the museum of the University of Kansas. Collected by Mr. A. Wellington, 

 to whom this tine species is dedicated. 



Aralia Townebi Lesq. 

 PI. XXIII, Figs. 3, 4; PL XXXI, Fig. 1. 



Hayden's Ann. Kept., 1874, p. 349, PI. iv, Fig. 1 ; Cret. and Tert. Fl., p. 02, PI. vi, Fig. 4. 



As yet the species is known only by fragmentary specimens Avhich do 

 not sufficiently exhibit the essential characters. What is known of it and 

 observed upon the fragments figured (one representing a small leaf, the 

 other a large one, quite as large if not larger than that figured in Cret. and 

 Tert. Fl., loc. cit. ; the third, PI. XXXI, of middle size) is that the leaves are 

 subcoriaceous, polished on tlie surface, irregularly pahnately five lobed 

 from below the middle, narrowly cuneate to the base; the lobes entire, lan- 

 ceolate oljtuse; the primary lateral nerves forking at a distance above the 

 l)ase and tlie secondaries open, variable in distance, very much curved in 

 passing toward the borders, camptodrome, with nervilles rarely distinct and 

 at right angles to the nerves. The lateral primaries evidently join the 

 median nerve as supra-basilar. 



Fig. 3 represents a fragment of a small leaf, probably referable to this 

 species. It seems to have a degree of relation to the Tertiary leaf, also 

 fragmentary, of A. Tschiihjmensis Heer (Fl. Foss. Arct., vol. 5, pt. 2, p. 42, 

 PI. XIII, Fig. lb). 



Haliitat: Ellsworth County, Kansas. No. 73 of the museum of the 

 University of Kansas; A. Wellington, collector. 



' Cret. and Tert. Fl., p. 61, PI. vill, Figs. I, 2; PI. ix, Figs. 1, 2. 



