knowlton.] DESCRIPTION OF SPECIES. 29 
All of the type specimens of this species are in the United States 
National Museum (Nos. 75, 7G, 77, 78), together with several since 
obtained. They are very characteristic, and when sufficiently well 
preserved are readily distinguishable. 
This species bears an unmistakable resemblance to Geinitzia cretacea 
Ung., and were it not for the fact that this latter species is still in a 
state of uncertainty as to its nomenclature, the specimens under con- 
sideration might perhaps be referred to it. As Schenk has pointed 
out, 1 the 8. biformis of Lesquereux is undoubtedly a Geinitzia, and I 
have therefore assigned it to this genus. 
Habitat. — Point of Kocks, Wyoming. 
OUNNINGHAMITES? Sp. 
PI. V, fig. 3. 
The example figured is all of this form that could be found in the 
collections, and, unfortunately, it is so obscure that its character can 
not be satisfactorily made out. It appears to be a relatively thick 
terete branch, rather thickly set with large, lanceolate, acuminate 
leaves. The branch is about 13 cm. in length and 5 cm. in diameter. 
The leaves are a little more than 3 cm. in length and from 4 to G mm. in 
width. They are provided with a single central nerve. The bolsters 
or scars left by the fall of leaves can not be made out, if, indeed, they 
are present. 
I am very uncertain as to the proper generic reference of this 
specimen. It seems, however, to approach most closely to Cunning- 
hamites eJegans as figured by Heer, 2 and I have placed it tentatively in 
this genus. Its exact position must be determined by subsequent 
material. 
Habitat. — Goal mine on north fork of Dutton Greek, near old stage 
road, Laramie Plains, Wyoming. Collected by Knowlton, Stanton, 
and Knight, July, 1896. 
Beachyphyllum macrocarpum Newb. 
PI. IV, figs. 5, 6. 
Brachyphyllum macrocarpum Newb., Fl. Amboy Clays, p. 51, PI. VII, figs. 1-7 (1895 
[1896]). 
Brachyphyllum crassum Lx., Proc. U. S. Nat. Mus., Vol. X, p. 34 (1887) [as nomen 
nudum]; Fl. Dak. Gr., p. 32, PL IE, fig. 5 (1891;. [Non B. crassum Teni son- 
Woods, Proc. Linn. Foe. N. S. Wales, Vol. VII, p. C60 (1883)]. 
Thuites crassus Lx., Cret. and Tert. FL, p. 32 (1883 [1884]). 
Brachyphyllum sp., Stanton and Knowlton, Bull. Gool. Soc. Am., Vol. VIII, p. 137, 140 
(1897.) 
After careful examination I am unable to distinguish this plant satis- 
factorily from the well-known Brachyphyllum of the Dakota group and 
1 Zittel, Handbuch d. Palieontol., Abtb. II, p. 299. 
2 F1. v. Molctein m Mabern: Neue Denkschr. Scbw. Gesel. Naturwiss., Vol. XXIII, mem. 2, p. 12, 
PI. I, fig. 14 (1869). 
