Description of Alabama Coal Plants. ' 31 
(forming pits in the impression, ) indicating the insertion of hairs 
or scales, which are not noticed by Brongniart. That author’s 
specimens of S. Dubuissoni were obtained from the coal mines 
of Montrelais, Loire-Inferieure. 
3. Sphebopteris:s 
- Perhaps a variety of the last, ora different singe of poi 
_ The secondary pinne however are much longer, the pinnules 
more distant and more saeply wah es with narrower mare more 
diverging segments. - 
A. Neuropteris tenuifolia. Ad. tic Ap 241, t. 72, f. 3. 
_ + 5. Neuropteris gigantea? or N. G 
One or two detached leaflets, we ahd tthe with cer- 
tainty. 
a: oan canneformis. Ad. Brongn, p- 131, t. 21. 
7. Calami 
An Mister spectineli With narrower and more prominent tle 
es than the foregoing, and no distinct tubercles. 
_ 8. Lepidodendron elegans. 3 
- ‘The Alabama plant has narrower and more Inaction areole 
abn the British specimens I have seen of L. elegans, but agrees 
Sails with specimens from Cape Breton. 
9. Lepidodendron. 
- Decorticated, and very obscure ; evidently a sn 2 with 
a broad rhomboidal areole, like L. diilatapinel: Foss. F' 
- 10. Lepidodendron?- 
~ Probably the leaves of a Lepidedendrou or some cag allied 
_ plant, and much resembling those of L. acerosum, Foss. F'7., t. 8. 
< ‘They are two inches or more in length, narrow, linear, straight, 
| Hat, (probably owing to compression,) and marked with a dis- 
~ tinet but somewhat irregular ridge or ~ Se the middle. 
‘LL. Sigillaria. 
A-Deevttivated and indeterminable. 
12. Stigmaria ficoides? 
This is doubtless one of the forms which have been commonly 
comprehended under the name of Stigmaria ficoides; but it is 
hot quite clear that it is either the Stigmaria ficoides or S. Ana- 
bathra. of Corda. The scars do not exhibit the distinctly umbil- 
a ~ ieated socket-like appearance observable in the best characterized 
Specimens ofthese fossils; they appear as if the leaves (or root- 
lets) had been. abruptly broken off, rather than dis-articulated. [ 
