I.O.MAKIA Sl'K'AN'r. 



.']1)1 



Found near 'ranl)rids.c Wells, in 1853, by Mr. fi. 15. ^\^)llaston; 

 more recently on the Clova Mountains, in Forfarshire, and near 

 Llanrwst and Todmorden, by Mr. Stansfield. Sterile fronds 

 very narrow and linear, entire and strap-shaped from the apex 

 downwards for nearly half their length, below having short, 

 l)lunt, unequal lobes. Length five to eight inches, width one 

 eighth to half an inch. Fertile fronds resembling the sterile 

 ones, the upper portion entire and spike-like, and only one 

 eighth of an inch wide. Sori continuous in a longitudinal line 

 close to the rachis. 



Fk' .S(I2 



Fig. 803. 



Ckistata, Loire, {cristatiim, Wollaston.) (Fig. S()2.) — Found 

 near Tunbridge Wells, by Mr. G. 13. A\"ollaston; on the Clova 

 Mountains, also in a ravine of Saddleback, Keswick, in 186(i, by 

 Mr. A. Clapham. Sterile fronds six or eight inches long, fertile 

 fronds twelve inches. Fronds normal and lanceolate, exce})t that 

 the apex is variable. Sometimes divided and dilated, with 

 broader lobes dilated at the apex. Fertile fronds, the segments 



