New Species of Fossil Coal Plants. 415 



half an inch broad ; articulations very near ; leaves short, or 

 obovate, united in their whole length ; whorls half open, not 

 appressed on the stem. 



Genus ANNULARIA. Sternb. 



8. Annularia sphenophylloides ? Ung. Stem diffuse, 

 articulated, marked with deep narrow furrows (narrowly stri- 

 ate) ; leaves verticillate, 10 to 16, flat, obovate, oblong, very 

 entire, either slightly emarginate or pointed. 



Genus SPHENOPHYLLUM. Brongt. 



9. Sphenophyllum filiculme (spec. nov.). Stem very 

 slender, threadlike ; leaves in whorls of six ; the lateral ones 

 long, cuneate, deeply emarginate and crenulate ; inferior 

 leaves much shorter and scarcely broader, of the same form. 



10. Sphenophyllum trifoliatum (spec. nov.). Stem thick, 

 inflated at the joints, striate, leaves in whorls of three or four, 

 deeply cut in three linear, acute divisions. 



Genus NCEGGEKATHIA. Sternb. 



11. N(eggerathia obtusa (spec. nov.). Frond bipinnately 

 branching ; pinnae elongated, slightly undulate, pinnules 

 attached to the rachis in a very acute angle ; broad and 

 long, obovate, rounded and lobed above ; narrowed below in 

 a short, broad petiole ; nerves dichotomous and simple, parallel, 

 distinct. 



12. Nceggerathia minor (spec. nov.). Frond bipinnately 

 branching ; pinnae long and straight, half open ; pinnules dis- 

 tant, small, obliquely attached to the rachis, and slightly re- 

 curved, cuneate, very obtuse above, narrowed below in a long 

 petiole ; nerves very slender, scarcely distinct. 



13. NoeGGERATHiABocKscHiANALesqx. (Cyclopteris Bock- 

 schiana Gopp). Frond bitripinnately branching; pinnae trifo- 



