L. Lesquereux on the Coal-Formations of the United States. 201 
Henry A. Riley. It shows the upper part of a frond with three 
oblique pinnee somewhat reflexed from their base and the pinnules- 
or leaves, broadly oval or reniform, the upper one flabellate, all. 
narrowed to the base and pinnately attached on both sides of the 
rachis by a narrow decurring base. The point of attachment of 
the leaves is just as I have figured it in my report. This splen- 
did specimen has evidently the general outline and the appear- 
ance of a fern and at once puts aside Brongniart’s surmise that 
the simply pinnate form of the leaf, &c., show it to be analogous 
to the Zame. 
though less well preserved and entire. It is a simple stem, 
about half an inch thick, bearing numerous long, ribbon-like, 
true species or belong to the same Cordaties as OUTS ; but I believe 
that all those broken leaves described by Géppert as Noeggerathia 
Isqx. Cyclopteris dissecta Go p, Qh ( 
C. Dorkions Daten: with some ot er Cyclopteris with a narrow angu- 
lar base and even erhaps Odontopteris imbricata G6 
ote) of these species co ts 
ot the lower coal, the first of England, 
the other species pertain to the Old Red Sandstone and thus the 
"een a lly, I doubt if Noeggerathia 
_ SUtion. For this reason, especially, I doubti 75 ‘ 
_ folia Brgt., of the Permian a: Russia belongs to this genus, or it 
May be, 
found with a Lepidodendron, its geological horizon has not been 
ed. 
_ &Xactly mark 
Am. Jour. Sor.—Srcoxp Sexses, Vor. XXXII, No. 95.—Sepr., 1861. 
