300 D. WHITE AGE OF LOWER COALS OF HENRY CO., MISSOURI. 



Distribution in the Valenciennes Basin (Houiller Moyen) of Species identical with or 

 closely related (in parentheses) to those from Missouri. 



Name of species. 



Eremopteris missouriensis, Lx. 



(Diplothmema furcatum, (Brongn.) Stur?). 



Pseudopecopteris obtusiloba, (Brongn.) Lx 



P. squamosa, ( Lx. ) 



Mariopteris cf. nervosa. 



(M. muricata, (Brongn.) Zeill. ) 



M. sphenopteroides, (Lx.) Zeill 



Mariopteris, sp. nov.* 



(Diplothmema jacquoti, Zeill.) 



Sphenopteris mixta, Schimp 



S. pinnatifida, (Lx.) 



(S. quadridactylites, Gutb. ). 



S. chcerophylloides, (Brongn.) Presl . 



IS. cristata, (Brongn.) Presl. 



(S. douvillei, Zeill.) 



Sphenopteris, sp. nov.* 



(Diplothmema, zeilleri, Stur).. 



Sphenopteris, sp. nov.* 



(S. potieri, Zeill.) 



S. ophioglossoides, (Lx.) 



(S. crepini, Zeill.) 



S. subcrenulata, (Lx.) 



(Pecopteris crenulata, Brongn.) 



Oligocarpia, sp. nov.* 



(0. brongniartii, Stur) 



Pecopteris, sp. nov.* 



(Sphenopteris sternbergii, (Ett.) Weiss). . . . 



P. dentata, Brongn. (non Will. ) 



Pecopteris, sp. nov.* 



(P. abbreviata, Brongn. ?) 



P. vestita, Lx. 



( P. volkmanni, Sauv. ?) 



P. clintoni, Lx. 



(P. Integra, (Andrii) Schimp.) 



Aphlebia crispa, (Gutb.) Presl. . 



Alethopteris serlii, (Brongn. ) Goepp 



Callipteridium cf. mansfieldi, Lx. 



(Alethopteris grandini, (Brongn.) Goepp.). 



Neuropteris rarinervis, Bunb 



N. missouriensis, Lx. 



(N. flexuosa, Stb. ) 



iV. scheuchzeri, Hoffm . 



o 

 o 



+ 



R 



+ 



E 



R 



O 



N 



<D 



r— I 



T3 



R 



+ 



R 



R 



R 



R 



+ 



R 

 R 



+ 



<D 

 fl 



O 



N 







R 



+ 



R 

 C 

 C 



R 



+ 



R 



R 



+ 



R 

 R 

 R 

 R 

 R 

 R 



R 



+ 



R 



R 



+ 

 C 



R 



C 



R 



+ 



*The full names of new species are omitted to avoid the publication of notnina nuda. 



The foreign species related to a corresponding one from Missouri is placed in parenthesis sub- 

 jacent to the latter. 



The names used are not in all cases those given preference in M. Zeiller's memoir. 



The significance of the signs given in the table are as follows : + = present ; R = distribution 

 of related species ; C = common. 



