FOSSIL PLANTS. 
459 
Caulopteris intermedia, Sp. nov. 
Cicatrices elliptical, elongated, three inches long, a little 
more than one inch broad, narrowed downwards into a broad 
cauda, pointed at the top, irregularly ribbed or sulcate, with a 
central, elongated scar, and without definite marginal disc. 
Surface between the cicatrices apparently smooth, marked by 
points or mammillae about one-eighth of an inch broad, half 
an inch distant, placed in an irregular, spiral order. The 
space between the cicatrices is horizontally one and a-half 
inches, and two inches in the direction of the spiral. 
This species is known to me only by a sketch lately communicated by the 
State Geologist, and received after the preparation of the descriptive part of 
this Report, and the engraving of the plates. It appears to be intermediate 
between Sigillaria Marodiscus, Brgt., and Sigillaria, Cistii , of the same author. 
The form of the cicatrices is about the same size as in the first of these species, 
hut they are disconnected at the base, placed in true spiral order, and at some 
distance from each other, as in the last species. It is a true Caulopteris, ac¬ 
cording to Schimper’s definition of the genus, while most of our species of 
Caulophris, viz., those whose internal cicatrices are surrounded by a flattened 
border generally opening inwards in the form of a horse shoe, are referable to 
the genus Stemmatopteris, of Corda. 
In sandstone, over coal No. 3, one mile south of Rushville, Ill. 
