AN ENUMERATION OF CULTIVATED FERNS. 165 



7 N bisserata, Schott. Aspidium bisseratum, 8w. ; 8cM. 



Fil t. 33. Nephrodium bisseratum, Presl Philip- 

 pine Islands. 



8 N. davallioidos, Moore; Lowe's Ferns, 7, t. 23 ; Hook. Fil 



Exot. t. 60. Aspidium davallioides, Sw. ; Hook. Ic. 

 Plant, t. 395-6. Malayan Archipelago. 



80. CYCLOPELTIS, /. 8m 



Vernation fasciculate, decumbent. Fronds 



pinnate, 1-3 feet high; pinnae entire, falcate, 

 i lanceolate, 4-9 inches long, sessile, auriculated 



at the base, articulated with the rachis. Veins 



two or three, times forked; venules free, the 



lower interior and exterior ones sporangiferous 

 I on or below their apices. Receptacles puncti- 

 [ form. Son round, transverse, biserial. In- 

 I dusium orbicular. 



L C. semicordata, J. 8m. En. Fil Hort. 

 Kew. (1846) ; Lowe's Ferns, 6, t. 3. 

 Aspidium semicordatum,$w.; (Plum. 

 Fil. t. 113). Lastrea semicordata, 

 Presl. Hemicardium Nephrolepis, 



Fee. Polystichum semicordatum, 



Moore. West Indies. undeTside. NO. \ 



5 Didymochlcence. Fronds always Upinnate ; pinna and 

 pinnules articulate with the rachis. Sori punctiform, oblong, 

 terminal. Indusium oblong hippocrepiform. 



81. DIDYMOCHLJENA, Desv. 



Vernation fasciculate and erect, subarboreotis. Fronds bi- 

 pinnate, 2-6 feet long ; pinnules oblong-elliptical, oblique, base 

 truncate, subsessile, articulated with the rachis. Veins radiating, 



