﻿Tweediance. 



N. O. Filices 



TAB. LXXXVI. 



POLYPODIUM TWEEDIANUM 



Fronde ovato-lanceolata profunde pinnatifida submembranacea, 

 laciniis remotiusculis alternis erecto-patentibus bneanbus acu- 

 tiusculis crenatis, supra nudis subtus sparse lep.dotis, squara.s 

 ovato-acuminatis peltatis angulato-dentatis, sons unisenalibus, 



stipite paleaceo. 



llAB. WoodsofSt.Xavier, lucuman, o.^x...--. - 



This is clearly a distinct species of Polypodaan from any 

 hitherto described. Its nearest affinity is with i^-;«« f^^: 

 but that has a much thicker, nearly coriaceous f "^' 2";";^ 

 almost black in drying (in ours a bright green) ; the lac.n . 



, »• ^ tl,n ^riles are more ciliated, m 



more patent, obtuse, entire, the scaies, aio .-^i^ antl 



finitely more numerous, so as to cover the whole ""dersu^^e "' 

 to fringe the margin, of the frond. In one of our spec,n.e„s 

 P. Tmeedianum the two lower bcinife are foiked. 



Fig. 1. 1. Scales of the unde'rside of the frond : 





