1 98 Berry . — A Lower Cretaceous Species of Schizaeaceae . 
Acknowledgements. 
I am indebted to Mr. W. R. Maxon, of the U.S. National Herbarium, 
for advice and for the use of specimens in his charge ; to Dr. F. H. Blodgett, 
of Roanoke College, a former student at the Johns Hopkins University, for 
the camera lucida drawing of the spores ; and to the U.S. Geological Survey 
for permission to reproduce the photograph of the specimen here figured. 
Summary. 
1. The genus Baieropsis of Fontaine is shown to belong to the Filicales 
and not to the Ginkgoales. 
2. Certain forms heretofore referred to Baieropsis show fructification 
characters which justify their reference to the family Schizaeaceae. 
3. This affinity is corroborated by the identity of the frond characters 
between the fossils and certain modern species of Schizaea with which they 
have been compared. 
Johns Hopkins University, 
Baltimore, Md., U.S.A. 
EXPLANATION OF PLATE XII 
Illustrating Mr. Berry’s paper on a Lower Cretaceous Species of Schizaeaceae. 
Schizaeopsis expansa (Fontaine). Above, reproduction of the type from the Patuxent formation 
of Fredericksburg, Virginia, natural size. Below, camera lucida drawings of spores from the same 
specimen, x 380. 
