82 TRICHOMAS ES REN1FORME. 



Fronds coriaceous, glabrous, simple, stipitate, reniform in shape, 

 decurrent on the stipes, lateral, and semi-pellucid. 



Rhizoma slender, creeping, and very long. 



Veins dichotomous, close, radiating from the base. 



Sori contiguous, marginal, terminating almost every vein, 

 cuneato-cup-shaped; columella exserted. The sori are arranged 

 on the circular margin, like the 'cogs' of a wheel. 



Length about four to six inches. Colour dark shining green. 

 Width from two to three inches. 



For fronds my thanks are due to Mr. J. Smith, Curator of 

 the Royal Gardens, Kew, and Mr. R. Sim, of Foot's Cray. 



It may be procured of Mr. Sim. 



The illustration is from Mr. Smith's frond. 



