Kxplanation of Plates. A471 
PLATE XLVI. 
Fic. 1.—Mariopteris obtusiloba D.W. var. Terminal part of a pinna. 
University of Kansas collection. Natural size. 
Fic. 2.—Same species. The basal part of a typical pinna. University of 
Kansas collection. Natural size. 
Fic. 3.—Same species. A pinna with broad pinnules. No. 1583, Uni- 
versity of Kansas collection. One and one-half times natural size. 
Fig. 4.—Same species. Apex of one of the obtuse pinnules, showing vena- 
tion. University of Kansas collection. Three times natural size. 
Fic. 5.—Same species. One of the pinne, with very long pinnules and 
winged rachis. No. 576, University of Kansas collection. Figures 
1 to 5 from the Le Roy shales. 
Fic. 6.—Odontopteris anomala sp. nov. A large pinna, showing the un- 
symmetrical development. The rachis is bordered on one side by a 
broad lamina supplied by numerous veins arising from the rachis, 
while on the opposite side large, elongate pinnules are attached. The 
venation is extremely irregular and wavy, the veins often running 
together for some distance, then separating. No. 631, University of 
Kansas collection. From the Le Roy shales at the Haverkampf farm. 
Natural size. 
Fic. 7.—Details of venation, taken from specimen illustrated by figure 6. 
Twice natural size. 
Fic. 8.—Neuropteris scheuchzeri Hoffm. with Hysterites. No. 5690, Uni- 
versity of Kansas collection. From the Le Roy shales. 
PLATE XLVII. 
Figs. 1,2.—Rhabdocarpos cf. emarginatus. From the LeRoy shales. 
Nos. 5498 and 5496, University of Kansas collection. 
Fig. 3.—Sigillaria. A slender leaf with upward curve at the apex. 
Fic. 4.—The apical part of a very long leaf with straight obtuse apex. 
Fig. 5.—A section of a very large leaf with finely but distinctly serrate 
edges. 
Fic. 6.—From the same. Figures 3 to 6 from the Le Roy shales at Blue 
Mound. Figures 1 to 5 natural size; figure 6 twice natural size. 
Fics. 7, 8—Sphenophyllum emarginatum Brongn. From the Le Roy 
shales at the Haverkampf farm. No. 4012, University of Kansas col- 
lection. 
Fic. 9.—Middle part of a very large Sigillaria leaf. From the Le Roy 
shales at Blue Mound. Natural size. 
Fie. 10.—Cordianthus sp. From near the base of the Bethany Falls lime- 
stone at Kansas City, Kan. No. 5533, University of Kansas collection. 
Twice natural size. 
Fie. 11.—_Sigillaria sp. Enlarged leaf-scar. From the Cherokee shales at 
Lansing. No. 4340, University of Kansas collection. 
