408 University Geological Survey of Kansas. 
scriptions given by Lesquereux and White, I have no hesitancy 
in referring it to N. missouriensis. The epidermis of the ovate 
pinnules is dense, the veins not very distinct. The border on 
most of the pinnules appears a little thickened; the base is not 
quite equally rounded, the lower side being slightly produced 
downward. The pinnules are sessile by a thick midrib which 
in the specimen at hand can barely be traced to the middle of 
the pinnule. The pinnules are perhaps a little more distant 
than is usual for the species, being almost or quite free from 
each other. 3 
Formation and locality: Cherokee shales, Lansing. 
Neuropteris ovata Hoffman. Pl. XLVIII, fig. 9; pl. L, fig. 11; pl. LIII, 
fig. 2; pl. LVI, fig. 6. 
Fronds very large, tri- or quadripinnate, dichotomous below. 
Primary pinnee large, having a spread of 1 meter or more, 
length not known; rachis flexuous, woody, 2 cm. or more wide 
longitudinally, roughly striated, branching in a semidichoto- 
mous manner, and bending somewhat after giving off each of 
the strong secondary pinnee. Ultimate pinne attached to the 
rachis, 3 to 5 em. apart; five or six between each two secondary 
pinne. Secondary pinnee subopposite or alternate, distant, not 
touching, or possibly overlapping at the middle, 20 to 25 cm. 
apart, at right angles, or inclined a little, narrowly ovate or 
approaching a linear form, contracted at the base by the short- 
ening of the ultimate pinnze, more pronounced on the upper 
side, narrowed at the apex, where the ultimate pinne pass into 
linear pinnules, one or two of which are more or less connate 
with the inequilateral terminal pinnule, 20 to 30 cm. wide at 
the widest part a little below the middle; rachis strong, roughly 
striate, as much as 12 mm. wide at the base. Ultimate pinne 
rather distant, 114 to 4 cm., free or overlapping at the base, 
alternate or subopposite, inclined slightly, or at about right 
angles, or even reflexed near the base of the large pinne, ses- 
sile, broadly linear, sides nearly parallel, or sloping a little to 
an obtusely lanceolate apex, the last one or two pinnules partly 
connate with the large inequilateral terminal pinnule. Ulti- 
mate pinne replaced above by linear oblong pinnules which 
pass into the inequilateral terminal pinnule of the secondary 
pinna. Rachis moderately strong, straight, but sometimes, es- 
pecially in the Upper Carboniferous forms, thin, flexuous, bend- 
ing to meet the attachment of each of the distantly separated 
pinnules. Maximum length of the ultimate pinnz, 10 to 15 
