so CHARACTERS OF TRIBES AXD GENLUA, 



GENERAL ARRANGEMENT, &c. 

 Evolution of the fronds circinate. 



Divisic« 1.— EREMOBRYA. (Page 05). 

 A. Ring of Sporangia vertical. 



* Sort Indusiate. 



Tribe 1.— OLEANDRE^E. (Plate 1.) 

 Sori round, lateral. Indusium lateral, interiorly attached 

 01' sometimes central, plane. 



1. Oi.EAXDRA. Cav. (1801). 



Aspidium fjJ-, Swarlz. Newronia, Don. (1825). Ophio- 

 piteris, Bciinv. 



Siirculwn slender, creeping, or erect, and snb-frutes- 

 ceut. Fronds simple entire linear lanceolate, 1 to IJ foot 

 long, smooth or pilose. Stipes short, node of articulation 

 sessile, or more or less elevated. Veins simple, or once or 

 twice forked, venules free parallel, their apices curved 

 outwards, forming a narrow cartilaginous margin. Sori 

 punctiform lateral, scattered or transversely uniserial. 

 Indiisiura jjlane, orbicular or reniform. 



Type. Aspidium articulatuiii,, Sioartz. 

 Illust. — Hook, and Bauer, Gen. Fil. t. 45, B Moore Ind. 



Fil. p. 72 A. J. Sm. Ferns Brit, and For. fig. 1. Hook. 



Syn. Fil. t. 5, fig. 40. 



Obs. — B}^ early authors the species ot this genus were 

 placed in Aspidium, but their distinct and peculiar habit, 

 ton-ether with their articulate vernation, does not accord 



o 



with any genus of the Aspidece Alliance. 



Fee enumerates thirteen species of this genus, but the 

 o-reat uniformity in the form of the fronds renders it quite 

 impossible to find sufficient and permanent characters for 

 tliat number ; the most differential characters being in 



