472 Explanation of Plates. 
PLATE XLVIII. 
Fic. 1.—Neuropteris rogersi Lesqx. Apical part of a large pinnule, 
showing the upward curvature of the veins at the border, the lobate 
margin, and the thickened area at the apex. From the Lawrence 
shales at Twinmound. Twice natural size. 
Fic. 2.—Neuropteris vermicularis Lesqx. The terminal part of a pinna, 
illustrating the very large spatulate terminal pinnule. From the 
Cherokee shales at Lansing. No. 2101, University of Kansas collec- 
tion. Natural size. 
Fic. 8.—Detail of venation of same. Three times natural size. 
Fic. 4.—Neuropteris missouriensis Lesqx. Illustrating the broad obtuse 
pinnules, rounded both above and below the base, and with numerous 
veins. From the Cherokee shales at Lansing. No. 3076, University 
of Kansas collection. Twice natural size. 
Fig. 5.—Neuropteris rarinervis Bunb. A pinnule of the typical form, and 
with thick distant veins forking at a wide angle. From the Cherokee 
shales at Lansing. No. 3001, University of Kansas collection. Three 
times natural size. 
Fic. 6.—Neuropteris hastata D. W. The very long acuminate apex of one 
of the pinnules. From the Bethany Falls limestone at Kansas City, 
Kan. No. 2081, University of Kansas collection. Natural size. 
Fics. 7,8.—Neuropteris lindahli D.W. Typical long pinnules with cor- 
date bases. From the Bethany Falls limestone at Kansas City, Kan. 
No. 2076, University of Kansas collection. Twice natural size. 
Fic. 9.—Neuropteris ovata Hoffm. Large pinnules with numerous veins. 
From the Le Roy shales at Blue Mound. No. 2156, University of Kan- 
sas collection. Three times natural size. 
Fic. 10.—Linopteris obliqua (Bund). From the Cherokee shales at Lan- 
sing. No. 6075, University of Kansas collection. Three times natural 
size. 
Fic. 11.—Neuropteris desoru Lesqx. A large pinnule from the Lawrence 
shales at Twinmound. No. 606, University of Kansas collection. 
Three times natural size. 
Fic. 12.—Neuropteris rogersi Lesqx. Veins at the border of the pinnule. 
From the Lawrence shales at Twinmound. Much enlarged. 
Fic. 13.—Mariopteris obtusiloba D. W. var. Middle and basal pinnules 
of an ultimate pinna. From the Le Roy shales. No. 582, University 
of Kansas collection. Twice natural size. 
