SCOLOPENDRIUM VULGARE 



253 



Sub-cornutum, Supra-cornutum. — Applied to forms of the 

 truncate section, according as the thorn projects in front or at back. 



Sub-cornutum (Fig. 308). — A marked form of the cornute, or 

 horned section. 



Sub-lineato-striatum (Plate XXXVI). — Found in Devon by 

 Mr. Hillman ; one of the marginatum section. 



Supra-lineatum. — Found several times ; a form of marginatum, 

 distinguished by an even ridge near the midrib on the upper side. 



S.-l. cristatum. — A branched, crested form, similarly charac- 

 terized. 



S.-lineato-multifidum (Fig. 309). — One of the supra-lineate 

 section, so called owing to the linear ridge each side the midrib on 

 the upper side of the frond. 



Eig- 310. S. z\ torluoso-crislatidii. 



Tortuoso-cristatum (Fig. 310). — Raised by Mr. Lowe ; broadly 

 branched and twisted crests. 



