SELLARDS.] Fossil Plants, Upper Paleozoic, Kansas. 4A 
less cylindrical shape indicated by a depression in the stone, 
about one-third wider than deep, partly filled with carbona- 
ceous matter. Petiole of the frond very strong, striate, 1 cm. 
wide at the base, broken off short, as if detached from an arbo- 
rescent stem or possibly a larger division of the frond. Pin- 
nules close, connate or overlapping at the base, alternate or 
subopposite, oblique to the main rachis, or lower ones reflexed, 
linear ; base sessile, decurring or strongly auricled below, some- 
what rounded above, borders entire, straight, and nearly paral- 
lel. Pinnules sloping very gradually from the base to the ob- 
tuse apex, varying much in size and shape according to the po- 
sition on the frond; those at the middle reaching a length of 13 
em. and a width of 2 cm. at the base, strongly auricled, the 
auricle overlapping two-thirds of the distance to the midrib of 
the next pinnule below; those at the base of the frond open or 
reflexed, more narrow in proportion to their length, less dis- 
tinctly auricled or merely connate, or even distinct; those to- 
ward the apex also reduced, broader in proportion to their 
length, becoming near the apex broadly oblong, oblique, with 
decurring base, 1 or 2 cm. long, 1 cm. or more wide. Midvein 
of the pinnule broad but shallow, continuing two-thirds the 
length of the pinnule, then gradually fading out. The center 
of the furrow is marked by a narrow depression, which shows 
in the cast of the upper side of the frond as a fine, distinct line 
running through the center of the pinnule. Lateral veins in- 
distinct, thin, almost hidden in the epidermis. They leave the 
midrib obliquely, curve outwards, and meet the borders almost 
at right angles, simple or forked once, 12 to 14 per cm. The 
veins of the auricles are strongly curved, often once forked. 
Occasionally the auricle shows a very slight constriction of the 
base of the pinnule, as if about to become lobed. 
On the rachis of one specimen of this species there occurs a 
narrowly elongate scar, 3 mm. long and less than a half mm. 
wide. A similar but smaller scar occurs on the rachis of a 
fragment probably referable to this species. These scars are of 
interest, because of their seeming identity with numerous such 
scars occurring on or near the rachis of some of the tzeniopter- 
ids of the collection, which in turn at least resemble the scars 
on Macrotxniopteris, described as probable fructification by 
Fontaine.?” : 
295. Monograph, Older Mesozoic Flora of Virginia, p. 18. 
