polypodiace^:. 205 



showing its under surface. 1 h. Dorsal view of a small portion of 

 the same, with a single entire sorus. 1 c. The indusium, with a 

 scale in its centre. 1 d. A scale, from the costa. 1 e. A scale, 

 from the stipe. If, /. Sporangia. — The details all more or less 

 magnified. 



5. POLTSTICHUM VESTITUM, Presl. 



Polystichum vestitum, Presl, Tent. Pterid. p. 83 ; Montag. Bot. Voy. Astrol. & Zelee 



(1843), t. 4, f. S. 

 Aspidium vestitum, Sw. Syn. Fil. p. 53; Willd. Spec. PL 5, p. 261; Kaulf. Enum. 



Fil. p. 241 j A. Rich. Bot. Yoy. Astrol. p. 68 j A. Cunn. in Hook. Comp. Bot. 



Mag. 2, p. 364; Hook. f. Fl. Antarc. 2, p. 392. 



Hab. Tierra del Fuego. 



6. Polystichum venustum, Montag. 



Polystichum venustum, Montag. Bot. Voy. Astrol. & Zelee (1843), t. 5, f. M & N. 

 Aspidium venustum, Hook. f. Fl. Antarc. 1, p. 106. 



Hab. Auckland Islands. 



There is between this and the preceding species a very strong 

 resemblance : the difference between the two principally consists in 

 the present plant having more rigid fronds, broader paleae on the 

 rhachis, shorter and less attenuated pinna?, and the pinnules not so 

 deeply lobed; yet we have states of P. vestitum, from Tierra del 

 Fuego, between which and the present species it is difficult to discover 

 any difference. 



7. Polystichum aculeatum, Roth. 



Polystichum aculeatum, Both, in Willd. Spec. PL 5, p. 258. 

 Aspidium aculeatum, Sw. Syn. Fil. p. 53. 



Hab. Island of Madeira. 



52 





