376 GEOLOGICAL SUEVEY OF THE TEREITORIES. 



into the epidermis ; reddish at its surface when young; center some- 

 what mamillate. 



It has no apparent relation to any fossil species as yet published. 

 In some specimens the center looks split, as in species of Hysterium. 



Delesseeia fulva, sp. nov. 



Frond membranaceous, dichotomous, (apparently long,) linear, with a 

 thick medial nerve ; divisions linear, distant, obtuse, or enlarged at the 

 1301 nt. 



The preserved part of the frond is 20 cent, long, its average width 6 

 mill. The divisions are irregular in distance and positron, varying 

 in length from 5 cent, near the base of the frond to mere obtuse lobes 

 at its upper end. Its color upon the white sandstone is of a deep yel- 

 low. It is distantly related to Delesseria 8j)li(iirococcoides, Btt., from the 

 Eocene of Promina. 



Sphenopteeis Eocenica, Ett,, Eoss. El. of Promina, p. 9, PI. ii, 



Figs. 5-8. 



Frond large, at least tripianately divided ; secondary pinnae long, 

 lanceolate, taper-pointed, oblique, from a half-round narrow rachis ; 

 pinnules numerous, very oblique, close to each other, contiguous, united 

 from below the middle, acutely lobed ; veins pinnate, the divisions 

 either simple or forking once. This form somewhat differs from the 

 one i^ublished by Ettiughausen, by the connection of the pinnules from 

 below the middle, while they are separated from the base in the 

 European species ; also, by the sharp-pointed lobes of the pinnules, 

 these being described as obtuse by the author. The nervation, too, 

 shows a noticeable difference, the secondary veins in our specimens 

 being strong, flat, generallj" simple, and ascending to the point of a lobe, 

 or, when forking, one of the branches passing aside to one of the, very 

 acute sinuses. These differences may be specific or merely simple 

 varieties resulting from the part of the frond represented by the speci- 

 mens. The general appearance is the same. Splendid specimens of 

 this species were obtained at Golden, especially by the kindness of Eev. 

 L. Burns, the superintendent of the mining college of that place. 



Pteeis anceps, sp. nov. 



Frond linear, lanceolate, thick nerved, with apparently entire borders; 

 secondary veins at a right angle from the medial one, thin, though dis- 

 tinct, forking near the base, and one of the branches forking a second 

 time from the middle. 



A mere fragment, comparable to Lomariopsis cilinica, Ett., Fl. Bil., 

 p. 13, PI. iii, Fig. 13, somewhat different by the nervation. 



Pheagmites cbningensis, Al. Br. 



Fine specimen of stems with articulation and scars, were found in the 

 white sandstone under the lignite beds. Professor Meek has also well- 

 preserved specimens of rootlets, with their capillary filaments from the 

 same sandstone. 



