FLORA OF THE CHEYENNE SANDSTONE OF KANSAS. 
short. of comparison with the type sections. 
There is some doubt as to whether it came 
from the Cheyenne sandstone. I include it 
merely for the sake of completeness. In the 
case of Araucariozylon prosseri, which Pen- 
hallow ** recorded from this region, the data 
are so entirely uncertain that I omit any | 
further reference to it. 
Cupressinozylon cheyennense is of some inter- 
est, as Penhallow definitely remarks upon the 
presence of growth. rings, which is thus in 
accord with my supposition that the region 
had an arid climate and seasonal rainfall. 
Phylum ANGIOSPERMOPHYTA. 
Class MONOCOTYLEDONAE. 
Order POALES. 
Genus ARUNDO Linné. 
Arundo groenlandica Heer? 
Arundo groenlandica Heer, Flora fossilis arctica, vol. 38, 
Abt. 2, p. 104, pl. 28, figs. 8-11, 1874; vol. 6, Abt. 
2, p. 57, pl. 17, fig. 10, 1882; vol. 7, p. 18, pl. 54, 
figs. 1-3, 1883. 
Brozzi, Soc. ital. sci. nat. Atti, vol. 31, p. 403, pl. 6, 
fig. 5, 1888; Soc. geol. ital. Boll., vol. 10, p. 376, pl. 
16, fig. 3, 1891. 
Berry, U. S. Geol. Survey Prof. Paper 84, p. 28, pl. 
4, fig. 7, 1914. 
Striated culms and fragments of long, linear |. 
pointed leaves, 2 to 3 centimeters in width. 
Veins numerdus, fine, and parallel. 
This identification is queried because of the 
general lack of individuality in remains of this 
sort. They include the specimens from Belvi- 
dere that Ward referred to as bamboo-like 
stemd in his discussion of Feistmantelia. 
The species was described by Heer from 
material found in both the Atane and Patoot 
beds of western Greenland. It was subse- 
-quently recorded by me from the Middendorf 
arkose member of the Black Creek formation 
in South Carolina and by Bozzi from the 
Emscherian of Italy. Little reliance can be 
placed upon records of remains, of this sort, 
however, which also resemble in a general way 
the somewhat earlier forms referred by Schenk 
and others to Eolirion. 
The Cheyenne sandstone localities are Cham- 
pion (Wildcat) Draw, shales three-quarters of a 
mile south of Belvidere (222); hills between 
Spring Creek and Soldier, 4 miles northeast of 
%6 Penhallow, D. P., Roy. Soc. Canada Trans., 2d ser., vol. 6, sec. 4, 
p- 77, 1901. 
70351°—22——2 
213 
Belvidere (2227); and Champion (Wildcat) 
Draw, right (east) bank half a mile south of 
Belvidere (‘‘Lanphier shales,” 2228). 
Class DICOTYLEDONAE. 
Order SAPINDALES. 
Family SAPINDACEAE. 
Genus SAPINDOPSIS Fontaine. 
Sapindopsis variabilis Fontaine. 
Plate LV, figures 2-4. 
Sapindopsis variabilis Fontaine, U. 8. Geol. Survey Mon. 
15, p. 298, pl. 151, fig. 1; pl. 152, figs. 1, 4; pl. 153, 
fig. 3; pl. 154, figs. 2-4; pl. 155, figs. 2-5, 1890; in 
Ward, U.S. Geol. Survey Nineteenth Ann. Rept., 
pt. 2, p. 690, pl. 169, fig. 9, 1899; U. 8. Geol. Survey 
Mon. 48; pp. 481, 482, 489, 582, pl. 114, fig. 2, 1906. 
Berry, U. 8. Nat. Mus. Proc., vol. 38, p. 641, 1910; 
Maryland Geol. Survey, Lower Cretaceous, p. 469, 
pls. 83, 84, 85, 1911. 
Sapindopsis parvifolia Fontaine, U. 8. Geol. Survey Mon. 
15, p. 300, pl. 154, fig. 6, 1890. 
Eucalyptus rosilriana Ward, U. 8. Geol. Survey Mon: 48, 
p. 530, pl. 113, figs. 9, 10, 1906. 
Ficus myricoides Ward, idem, p. 531, pl. 112, fig. 12, 1906. 
Rogersia angustifolia Fontaine, in Ward, idem, pp. 491, 
510 (not p. 521), 1906. 
Leaves odd-pinnate, in some specimens even- 
pinnate, with three pairs of lateral leaflets, 
which may be opposite, although usually there 
is a tendency toward a subopposite arrange- 
ment, markedly so in several specimens. 
Leaflets normally lanceolate, individuals of the 
same leaf about of a size, usually markedly 
decurrent, but variable in this respect. The 
proximal leaflets are always less decurrent than 
the pair next above, and some even have short 
petioles. The upper leaflets are remarkably 
variable; some have an abnormal decurrent 
wing which j joins the inner lamina of the next 
lower pair of leaflets; in others the rachis 
entirely lacks a wing. The leaf may be termi- 
nated abruptly by a pair of leaflets variously 
coalesced, or the three apical leaflets may be 
variously united, their laminae may. be almost 
symmetrical or markedly inequilateral, their 
margins showing a tendency toward undula- 
tion, and rarely a leaflet is divided into a basal 
and an apical part by a sharp constriction on 
one side near the middle of the blade. The 
specimens range in size from the small forms 
upon which Fontaine founded his species. 
S. parvifolia and which are 1.6 centimeters long 
and 0.4 centimeter wide to forms which ap- 
proach S. magnifolia in size and are 10 centi- 
