INTRODUCTION. VII 



All the specimens belonging to the preceding sections are merely enumerated, 

 and not distinguished by generic and trivial names, as is the case with the following. 



Phytotypolithes. Fossil plants of the stone coal formation. These the Baron 

 divides systematically into genera and species. The genera are these six : 



a. Palmacites, containing fifteen species. 



b. Casuarinites, five. 



c. Catamites, ten. 



d. Filicites, twenty-three 



e. Lycopodiolithes, five. 



f. Poacites, four. 



In the whole sixty-two species. 



4. Carpolithes. Of which Baron Schlotheim enumerates fifteen species as 

 present in his collection. This division is considered as a genus, as is also the 

 next. 



5. Anthotypolithes. The cabinet contains only one species, namely the 

 Anthotypolitb.es ranunculiformis. 



In 1820, Gaspard Count Sternberg published in German, the first number of a 

 work which has been translated by the Comte de Bray, under the title of " Essai 

 d'un Expose Geognostico-Botanique de la Flore du Monde Primitif." Of this 

 translation a second and third number have appeared in 1823 and 1824. In these 

 successive numbers the Count has communicated the state of his knowledge as it 

 grew up under his own hands, in consequence of his own labours and those of his 

 friend Baron Schlotheim. 



The Count's genera, as they are successively developed in his work are the 

 following : 



1. Lepidodendron. Stem scaly; the scales leaf-bearing, surrounding the 

 stem spirally. 

 In the third number what are here called scales, are denominated scale-like 

 cicatrices. 



This genus he subdivides, in his first number, into two sub genera, but he does 

 not notice this division in the additional species quoted in the succeeding numbers. 

 Lepidotae. Scales convex. 

 Alveolariae. Scales subconcave. 



