142 
POLYPODIACE.E. 
like scales, are observable, all of them pointing outwards. The 
under surface appears pubescent, and with the aid of a lens this 
pubescence is found to consist, first of very long, pointed, nar- 
row scales, which are more particularly abundant about the mid- 
rib ; secondly^ of jointed and shining hairs, which are scattered 
nearly over the whole surface ; and thirdly^ of the capillary 
segments of the involucres, which are also jointed and shining. 
The capsules are placed in circular clusters near the margins of 
the lobes or pinnules ; they are frequently concealed by the pu- 
bescence already described ; when arrived at maturity they be- 
come confluent, and occupy all the margins of the pinnules. 
The vignette below is intended to represent C wm Idwell : Llyn- 
y-Cwn or the Dog’s lake, near which Mr. Wilson finds the little 
fern now described, is situate just beyond this rampart of rock. 
