308 GEOLOGICAL SUEVEY OF THE TERRITORIES. 



considers as referable to his Alnus cardiopJiylla. It is represented in the 

 Sezane Flora (PL XY, fig. 8). The general fades of the American leaves 

 is, however, different, the teeth being broader and more obtuse, the 

 nervation more distinctly pinnate, and the disposition of the veins to 

 enter the teeth by their extremity more marked; and compared to Alnus 

 cardiopJiylla, it is especially different by the constant inequality of the 

 leaves. This last character and the irregularity of nervation are not of 

 frequent occurrence in the leaves of Alnus. Alnus viridis and A.serrulata 

 are, however, sometimes irregularly veined, and the inequality of the 

 sides is seen in a number of fossil species, Alnus cycladum, Ung., especi- 

 ally A. sporadum, Sap. 

 Habitat. — Alkali station, Wni. Cleburn. 



2. JUGLANS ALKALINA, sp. nov. 



Leaves pinnately compound ; leaflets lanceolate, tapering upward to a 

 long acumen, either narrowed or rounded to a short petiole ; borders 

 creuulate ; lateral veins distant, mostly alternate, parallel, separated by 

 short intermediate tertiary veins, curving in passing toward the borders 

 at an open angle of divergence, and ascending high along them in fes- 

 toons ; nerviiles in right angle to the veins, branching in the middle, and 

 forming, by subdivisions, irregularly quadrate or polygonal meshes. 



This species is represented by four leaves, and its characters distinct. 

 It is comparable to Juglandites peramplus^^a^.^iiuidi Juglandites cernuiis, 

 Sap., both of the Sezane flora, partaking of some of the characters of 

 both. It is, however, still more intimately allied to Juglans Bilinica, 

 Heer (Flor. Tert. Helv., Ill, p. 90, PI. CXX'X, figs. 5-19), from which it 

 merely differs by the position of the lateral veins at a more acute angle 

 of divergence following higher up along the borders, and by the thicker 

 and more numerous tertiary veins. 



Habitat, — Alkali station, Wm. Cleburn. 



3. Carpites viburni, sp. nov. 



Seeds or nutlets cordate obtuse, five to seven millimeters long, three 

 or four millimeters broad, convex, grooved in the middle from the point 

 to the base, surrounded by a membranaceous pellicle, the remains of an 

 apparently fleshy outer envelope. They resemble seeds of a similar kind 

 which I have found in great quantity at Golden, and referred to the 

 genus Tiburnum. Their form is like that of the seeds of Viburnum 

 Whymperi, Heer (Spitz. Flor., p. 60, PI. XIII, figs. 22 and 27). 



Habitat. — Alkali station, Wm. Cleburn. 



NEW SPECIES OF TERTIARY FOSSIL PLANTS BRIEFLY 



DESCRIBED. 



The following-described species have been discovered since the publi- 

 cation of the last annual report of Dr. F. Y. Hayden's Geological Sur- 

 vey of the Territories. They are represented by specimens sent from 

 different localities indicated, with each species, as well as the name of 

 the discoverer. All these species have been figured for the second 

 volume of the Contributions to the Fossil Flora of trtie Western Terri- 

 tories. 



1. Spheria rhttismoides, sp. nov. 



The spots formed by this small fungus upon the bark of some stems 

 and the leaves of a Myriaa are composed of circular ijerithecia, placed 



