P0LYP0DIACEJ3. 179 



Fine specimens of this beautiful and remarkable Fern were pre- 

 sented to the Expedition by Mr. Balistier, United States Consul at 

 Singapore, labelled as from the above locality, where, so far as we 

 know, it has only yet been detected. In all our specimens, the 

 peculiar "orbicular, peltate indusium" has entirely disappeared, 

 leaving only a very few sessile sporangia attached to the receptacle. 

 The habit of the plant, its firm stipes and glaucous fronds, together 

 with the " sporangia of each sorus being definite," indicate some rela- 

 tionship with Qleichenia, an affinity noticed by Mr. J. Smith, who, 

 however, on account of the presence of " a peltate centrally attached 

 indusium," placed the genus in Aspidiece. Presl refers it to the Cya- 

 theacece. 



56. A S P I D I U M, Sw., Presl, J. Sm. 



1. ASPIDIUM ALATUM, Wall. 



Aspidium alatum, Wall, ex Hook. & Grev. Ic. FiL t. 184. 



Hab. Tahiti, Society Islands. Samoan and Feejee Islands. 



This handsome species is admirably delineated by Hooker and 

 Greville in their Icones Filicum. It is gratifying to us to be able to 

 assign it a greater geographical range. 



2. Aspidium repandum, Willd. 



A. stipitibus glabris semiteretibus sulcatis basi paleaceis; frondibus rnem- 

 branaceis glabris pinnatis ; pinnis sessilibus elongato-lanceolatis acu- 

 rninatis basi subcuneatis margine repandis, terminali bi-tripartita ; 

 s<yris plurimis magnis biserialibus. 



Aspidium repandum, Willd. Spec. PI. 5, p. 216 ; Blume, Enum. Plant. Jav. p. 144. 



Hab. Forests near Banos, Luzon, Philippine Islands. Tahiti, 

 Society Islands. 



