Professor McCoy's New Taniopieris. 95 



(2.) Nervo medio crasso rigido. 

 (3.) Nervulis pcrpendicularibus. 

 (4.) Simplicilms vel basi furcatis. 



Die Arten diser Gattung sind den Aspidien mit ganzen 

 Wedeln ahnlich. 



III. (Lindley and Huttoii, Vol. I., p. xlviii.) 



(1.) Leaves simple entire. 

 (2.) With a stiff thiek midrib. 

 (3.) Veins perpendicular, simple, 

 (4.) Or forked at the base. 



They assign three species to Lias and Oolites, and give tv.o 

 figiu'cs : 



(a.) Vittata — not in agi*eement with the definition, 

 (b.) INIajor — not, &c. 



They admit that (a) is hardly distinguishable from the 

 living Indian Aspidium Wallichianum; (b) may be almost 

 identified with Scolopendriuni officinarum, a living British 

 plant. 



(IV.) (Brongniart Prodrome, p. 61.) 



(1.) Fronde simple, entiere, etroite a bords paralleles, 



traversee, par 

 (2.) une nervui'e moyenne, forte, epaisse, qui s'etend 



jusqu^ a V extremite ; nervures secondaires 

 (4.) presque simples ou bifurquee 

 (3.1 k la Base, presque perpendiculaire sur la nervure 



moyenne. 



