FLORA OF THE DAKOTA GROUP. 33 



PINUS, Linn. 

 Pinus Quenstedti, Heer. 



r\:iw I, Fi-s. -.i. I. 

 fHayden's "Ann. Rep.," 1874, p. 336. pi. iii, figs. (>, 7. 



Leaves iu fassicles of live, very long ami slender, thread-like, deeply nerved, the 

 base inclosed iu long cylindrical sheaths; cone cylindrical, very long; scales with 

 broad rhouiboidal shields (apophyses), acute ou the sides, inainmillate in the center. 



The specimens representing this species are numerous but all frag- 

 .mentary. The leaves are generally scattered and imbedded close together, 

 their point of attachment by five is marked by the long sheaths forming 

 deep holes into the stone; but none has been thus far found preserved 

 entire. The species may be, therefore, different from that of Heer. 

 described as above, and figured in "Molet. Fl.," p. 13, pi. ii, figs. 5-9. The 

 thread-like long leaves, the long cylindrical cone, and the shields of the 

 scales are, however, so much alike that I have scarcely any doubt on the 

 identity of the Dakota Group species with that of Europe. The length of 

 the leaves as given by Heer, who has had splendid specimens for descrip- 

 tion, is 20 centimeters. The fragments I have seen are 5 to 8 centimeters. 

 The cylindrical cone, 22 millimeters broad, gradually tapering to the base, 

 appears to be very long, its impressions perforating large stones, being 

 at least 15 centimeters long. These cones are generally curved as in fig. 

 iii. Heer represents them straight but of the same length and width. 



In the "Flora of Gelinden" by Saporta and Marion, the authors 

 remark (p. 19) that this fossil species does not differ by any important 

 character from the living Mexican Pines with quinate leaves which now 

 compose the section of the Pseudo-strohus. 



Bab.—Nesir Fort Harker and Clay Centre, Kansas. Cfis. Sternberg and 

 H. C. Towner. 



FRAGMENTS OP CONIFERS OF DN CERTAIN RELATION. 

 Abietites Ernestinae, Lesqx. 

 "U. S. Geol. Rep.," vi, pi. i, fig. 7. 



Sequoia formosa, Lesqx. 

 "U. S. Geol. Rep.," vi, pi. i, figs. 9, 9a. 



Inolepis? species. 

 Plate I, FigB. 8-8e. 

 Hayden's "Aim. Rep.," 1874, p. 337, pi. iv, fig. 8. 



Nutlets small, globular, short-mucrouate, sessile upon slender branches. 

 cf3 



