GEOLOGICAL SURVEY OF THE TERRITORIES. 13 



species is a true Fteris, related by its cliaracters to som.e varieties of 

 P. longifoUa, L,, with serrate borders. The irregular laceration of 

 the borders m?[,j be the result of maceration. The leaflet is not half 

 preserved, the part seen being a little more than 2 inches long and half 

 as broad. This species differs from P. pennmformis^ Heer, by less 

 oblique, less divided, and more distant veinlets. 



Phragmites Oeningensis, A1. Br. Stems 1 inch broad or less ; 

 coarsely striated with the same characters as those described above 

 from Evanston. 



Sabal Campbelii, ISTewy., Notes on Extinct Floras, p. 41, (PL x, 

 ined.) There is a large number of specimens all with the same charac- 

 ters. They are referable to this species on account of the very thin, 

 obscure striae of the rays, whose surface in all the specimens, without 

 exception, appears covered by a smooth, thick epidermis which oblit- 

 erates the lines. The number of the rays, which are sharply folded, is 

 proportionally very large, a character which, like the first, separates 

 this species from 8. Grayana, Lsqx., of the Mississippi Tertiary. The 

 author describes the petiole as flat. The upper face is concave, nearly 

 half-cylindrical, and striate like the leaves, except the middle, which is 

 rugose and spongy -like ; the lower is convex in the same degree ; near 

 its base the petiole flattens and enlarges. The specimens represent dif- 

 ferent parts of the iflant — ^leaves, petioles, and their sheaths, trunks, 

 fruits, &c. 



Garpolithes paljMArtjm, sp. nov. These fruits, described in Keport, 

 p. 295, from Evanston, (above the coal,) as Carpolithes lineatus^ (1) Newby, 

 are found agglomerated in large number upon the same specimens, and 

 mixed with irregular striate woody filaments, thus apearing as derived 

 from decayed bunches, the filaments representing pedicels. These fruits 

 are round oval, varying in length from IJ to 2^ centimeters, and in 

 width from 1 to If centimeters. Most of them are more or less com- 

 pressed ; some nearly flat, some but little devious from the oval-cylin- 

 drical primitive form, which is slightly truncate on one side and conical 

 obtuse on the other, narrowly striate, the lines converging to the trun- 

 cate part, and there often becoming more inflated and distinct. These 

 fruits are referable to species of Palms, not only on account of their con- 

 nection with Palm leaves, on the same specimens, but especially in con- 

 sideration of their form, their apparent texture, and their agglomeration 

 in bunches. Their form is like that of the nuts of some species of Iriar- 

 tea — I. setigera, Mart., for example ; or of Leopoldinia — L. pulclira, M. 

 and C They appear to have been surrounded b}^ a thin pulpous coat- 

 ing, under which there was a shelly envelope, still distinguishable on 

 some of the specimens, with a compressible and therefore somewhat 

 soft kernel. The best preserved specimens show differences in forms 

 from conical obtuse to exactly oval except the small truncate point of 

 attachment. These differences may indicate two species. Perhaps 

 C lineatus, 'Newj., is referable to the same kind of fruits; but none of 

 these specimens are marked by a small point, as in Dr. Newberry's 

 figure, loc. cit. 



POPULUS MUTABiLis var. repando-crenata, Heer, Fl. Ter. Helv., p. 

 22, PI. Ixii, Fig. 2. A large leaf, the lower part of which is destroyed. 

 It is broadly elliptical-lanceolate, obtusely pointed, with borders undu- 

 late-crenate and distant ; alternate secondary veins very oblique and 

 curved in ascending to and along the borders. The specimen is obscure, 

 but the essential characters of this species are well preserved enough 

 for identification. 



PopULUS MONODON, Lsqx,, Trans. Am. Phil. Soc, Vol. XIII, p. 413, 



