[PENHALLOwW] CRETACEOUS AND TERTIARY PLANTS OF CANADA 41 
SAGENOPTERIS ELLIPTICA, Fontaine. 
Fontaine, Potomac Flora, 149, Pl. XXVII., figs. 9, 11, 17. 
Lower Cretaceous of Alliford Bay, Q.C.I.; ‘Potomac Formation of Potomac 
Run, Virginia, and Baltimore, Maryland. 
Associated with Sagenopteris oblongifolia in the material from 
Alliford Bay, were two fragments of pinne —the one of the base 
and the other of the apex—which could not be separated from 
S. elliptica of Fontaine, as derived from the Potomac formation. This 
name seems somewhat unfortunate in that it fails to express the 
proper form of the pinna which is lanceolate rather than elliptical, 
with a tapering base. 
CYCADITES, sp.— 
The genus Cycadites is represented by a small fragment of a leaf 
with ten pinne, all of which have been broken off so as to represent 
but a portion of the original length. The rachis is prominent and 
the rather closely set, opposite pinnæ, are given off at angles rang- 
ing from 63 to 70 deg. The pinne are 1:75 mm. broad and broken 
off at lengths which range from 5-8 mm. Each has a fine but con- 
spicuous central nerve. In some respects this plant suggests C. unjiga 
of Dawson? from the Cretaceous of Table Mountain, Pine River Forks 
and Peace River, after which latter locality it is named. In this latter 
species, however, the somewhat distant pinne diverge at an angle of 
40-50 deg. A similar resemblance is also established with Les- 
quereux’s C. pungens,” in which the pinne diverge at an angle of about 
37 deg., and are somewhat more distant. The material is so frag- 
mentary, and it is so obviously different from other known species, 
that while it should be definitely designated, it seems unwise to erect 
a new species upon such incomplete and scanty material. It is 
possible the fragment represents the immature foliage of one of the 
recognized species of the locality. 
ZAMITES CRASSINERVIS, Fontaine. 
Fontaine, Potomac Flora, 172, Pl. LXIX. & LXXXIII. 
Potomac Formation of Fredericksburg, Va.; Lower Cretaceous of Alliford 
Bay, Q.C.I. 
Represented by one specimen about 4:3 cm. wide and 8-5 cm. long. 
The apex is incomplete, and the leaf was apparently about 12 cm. long 
in its original condition. 

i Trans. R. Soe, Canty, iv. 20: 
2 Flora of the Dakota Group, 30. 
