DESCKIPTION OF SPECIES— PALM JIl. 113 



base of the rays, these intermediate veinlets are only one to three (figs. 1 a 

 and 1 i ), but of course the nerves are more distant and the intermediate 

 veins more numerous in the upjjer and enlarged part of the rays, where they 

 are generally four to six. In some fragments of large rays from the Missis- 

 sippi flora, I have counted as many as ten of these veinlets. The relation 

 of this species to that of Mississippi is especially marked by the form of the 

 rachis, enlarged under the rays, and gradually narrowed to a long acumen. 

 This gradual narrowing of the rachis and its enlargement are distinctly seen 

 in fig. 4 of the Mississippi flora, as also the large number of rays and the 

 nervation in separate fragments, figs. 3 and 4, showing also the very slow 

 increase of the width of the rays, and therefore the large size of the frond. 



Fig. 2 of our plate represents a part of a large petiole found at Golden 

 with other remains of Palms, and perhaps referable to this species. The 

 specimen is twenty-two centimeters long; its form is triangular, obtusely cari- 

 nate; the size eight centimeters thick at or near its base, and only half this at 

 the part where it is broken. The rachis under the rays of fig. 1 seems to 

 indicate a still thicker petiole; but it is here flattened and therefore enlarged; 

 moreover, the stalks of species of Sdbal are rather narrower at a distance from 

 the fronds than under the rays. The character of coarse regular striae is 

 the same on the border of this petiole as remarked under the rays of fig. 1. 



Habitat. — Golden, Colorado, hard sandstone, between coal banks; Point 

 of Rocks, Wyoming {Dr. F. V. Haydert). It was first described from Van- 

 couver specimens. 



Sabalites Caiiipbellii, Newby. 



Sahal Campbcllii, Newby., Notes on Extinct Floras, p. 41, pi. x, (ined.). 



Leaf very large, eight to ten feet in diameter, with fifty to eighty folds; petiole long, one and a 

 half to two inches wide, flat above, without a central keel above or below, unarmed; nerves numerous 

 and fine, about fifty in each fold ; six principal ones on each side of the midrib, with three intermediate 

 ones between each pair, the middle one being strongest. 



As this species has been carefully described and finely figured by its 

 author, and as his plates may soon be published, I have abstained from repre- 

 senting it in this memoir. Moreover, the very numerous specimens which I 

 refer to this species, from a comparison with a fine one from Yellowstone, 

 labeled by Dr. Newberry, and furnished me by Dr. F. V. Hayden, merely 

 represent fragments of rays or rachis, and are not all perfectly concording to 

 the above description. The more striking characters of this species are: the 

 sharp folds of the rays, with keel deeply, narrowly grooved, and their upper 



8 T F 



