POLYPODIACEiE. 211 



marked with corresponding faint chalky-looking dots on the upper 

 surface. Indusium reniform. 



3. Nephrolepis ex alt ata, Schott. 



Nephrolepis exaltata, Schott, ex Hook. Glen Fil. t. 35. 



Aspidium exaltatum, Sw. Syn. Fil. p. 45 ; Willd. Spec. PL ,5, p. 229 ; Raddi, Plant. 



Brasil. p. 30, t. 46 ; Kaulf. Enum. Fil. p. 236. 

 Nephrodium exaltatum, Gaud. Bot. Freyc. Voy. p. 336. 



Hab. Sandwich Islands. 



The figure of the Brazilian plant by Raddi is a very fair repre- 

 sentation of that of the Sandwich Islands ; where it occurs very fre- 

 quently on the outskirts of forests and among bushes, on shady banks 

 and on the steep ridges, so common in that country. 



4. Nephrolepis pendula, J. 8m, 



Nephrolepis pendida, J. Sm. in Hook. Jour. Bot. 4, p. 197. 

 Aspidium pendulum, Raddi, Plant. Brasil. p. 30, t. 45. 

 Nephrodium pendulum, Gaud. Bot. Freyc. Yoy. p. 337. 



Hab. Organ Mountains, Brazil. 



This so much resembles the preceding species, that it might with 

 no great impropriety be viewed as a mere form of it ; the difference 

 consisting principally in the more membranaceous, narrower, subfal- 

 cate and slightly deflexed pinnae of the present plant. The latter 

 character depends very much upon the position and direction of the 

 frond when growing, whether pendent, inclined, or erect; and the 

 texture of the pinnae we know to be affected by the greater or less 

 degree of shade and moisture to which the plant is exposed. 



5. Nephrolepis hirsutula, Presl ? 



Nephrolepis hirsutula, Presl, Tent. Pterid. p. 79 ? 



Aspidium hirsutulum, Sw. Syn. Fil. p. 45 & 241; Willd. Spec. PI. 5, p. 232. 



Nephrodium hirsutulum, Gaud. Bot. Freyc. Voy. p. 339. 



