126 Annals of the Carnegie Museum. 



PTERIDOPHYTA. 



EQUISETALES. 



Genus Calamites Suckow, 1784. 



2. Calamites ramosus Artis. X 102. 



3. Calamites dubius Artis. X 103. 



4. Calamites suckowi Brogniart. X 104. 



5. Calamites approximatus Schlotheim. X io8b. 



Genus Annularia Sternberg, 1822. 



6. Annularia inflata Lesquereux. X 106, X i6ob. 



7. Annularia stellata (Schlotheim) Wood. X 107, X 1450, X155. 



SPHENOPHYLLALES. 



Genus Sphenophyllum Brogniart, 1828. 



8. Sphenophyllum lescurianum White. X io8a, X 147c. 



9. Sphenophyllum (Asterophyllites) fasciculatum Lesquereux. X 109. 



10. Sphenophyllum bifurcatum Lesquereux. (?) X iioa, X 165. 



LYCOPODIALES. 

 Genus Sigillaria Brogniart, 1822. 



11. Sigillaria camptotaenia Wood. X in, X 143&, X 153&. 



SPERMATOPHYTA. 



CYCADOFILICALES. 

 Genus Pecopteris Brogniart, 1822. 



12. Pecopteris arborescens (Schlotheim ?) Brogniart. X 112, X 158. 



13. Pecopteris vestita Lesquereux. X 113, X 125^, X I44Z>, X 145&1 



X 146, X 148, X 151, X 161. 



Genus Callipteridium Weiss, 1870. X 1640, b. 



14. Callipteridium membranaceum Lesquereux. X 105, X 114, X 



144a, X i6oa. 



Genus Neuropteris Brogniart, 1822. 



15. Neuropteris missouriensis Lesquereux. (?) X 115, X I43«. 

 iG. Neuropteris fasciculata Lesquereux. X 116. 



