102 TRANS. OF THE ACAD. OF SCIENCE. 
— that species by its indusium separating into more than 
our 
Loccopteris is a related genus, but has the sporocarp form. 
ed of a small number of large ee placed in the form of 
astar. Prof. Heer calls it Gutbieria Carolinensis. The P. 
bullatus of Bunbury is P. Shitigartiensis of Brogniart, is 
post spread in Euro ms and aa to the —— Neu- 
. in species, at Lanet. 
“Prof ‘eee se the Walchia diffusus not as L 
um, but as Tacodites, close to 7. Munsterianus aloeniias 
arenaceu iquus, and Erostichiles ican 
are good. The latfer is abe Pecopteris Whitbyensis so much 
relied upon by Rogers Lyell as a Liassiec species. | They 
mistook the paete: of -e side veins : 
Thus the views of Prof. Emmons -with regard to the Con- 
necticut River Sandstone and the N. Carolina and Virgmia 
Coal. Series would seem to be systained. The decision of Prof. — 
Heer is, that the of Baro part, where the plants referred to oc- : 
cur, is Keuper of oe and that the mass, containing eg 
Dy “On (her , and us, &c., is Permian, oF 
pes bebe: ‘newer sig i cs eet and it is sald, — 
-rof. Emmons has said before, that the an ) 
Rev. Dr. George White, of gla Als, Rev. Chas. nite 
asi Galeutts, E. Indi Sir William E. Logan, T. Sterry 
