88 On the Fossil Vegetation of America. 
Funtces. iy 
Neuropteris? spec. (fig. 2.) A large species; Fig. 2. (Nat-size.) 
leaves cordate, with an extraordinary difference in 
the size of the lobes, the lowest bemg the largest. 
My specimen of a frond has 14 leaves, the. ter- 
minating one acute and one lobed. Many of the 
leaves resemble those of the recent [soloma lanug- 
inosa, J. Smith, (Lindsea auctor.,) nor does the 
midrib in some of the leaves of Neuropteris, be- 
come indistinct sooner than that in this fern. The 
- elub-shaped termination of the veins of Isoloma 
does not exist in Neuropteris, although I have 
thought that I could observe a curving of the 
margin, with a slight appendage, as if it were pos- 
sible that there might be a resemblance to the 
marginal fructification of Isoloma. 
Neuropteris rotundifolia, Brongn. Specimen 
clear and distinct. 
Cyclopteris orbicularis, Brongn. ‘ Specimen 
_ Adiantites cyclopteris, Gopp. fine. 
Sphenopteris latifolia, Brongn. 2 My specimens \ - 
Aspidites latifolius, Gopp. ‘ agree in char- 
acter and appearance with Brongniart’s figures, 
but not at all with the figures of Lind. and Hutt., of this fossil. 
eris unita, Brongn. : 
Alethopteris, Gopp. 2? spec. Fig. 3. (Natural size.) 
Pecopteris, Brongn. f Fig. 3. Pe 
This specimen bears a greater re- DAN 
HN 
semblance to P. Serlii, Brongn., 
‘to any other fossil, but the 
leaves are quite obtuse, or may 
even be called round. The ter- 
minating leaf, as well as some of 
the others, are lobed, and the veins 
are quite as perpendicular to the 
midrib asin Teniopteris Betrandi, 
Brongn. Hist. Veg. Fos., tab. 82, 
5 1 
SIcILLARIER. 
Sigillaria Seri, Brongn. 
Saullit, — do. 
Schlotheimii, do. 
ocuiata, 0. 
Syringodendron, Sternb. 
er Rhyltidolepis, Cotta. be 
~ It seems to me almost impossible not to be convinced, by the 
arguments of Brongniart, that these are the stems of the abores- 
ich 
