CHARACTERS OF TRIBES AND GENERA. 217 



** Sarmentuni epigeous, squamose. 



L. invisa (Sw.) (v v.) ; L. Serra (Sw.) ; L. augescens 

 (Link ) (v v.). 



Fronds deltoid decompound. Polystichopsis, J. 8m. 

 L. hispida (Sw.) (v v.) ; L. pubescens (Sw.) (v v.) ; L. 

 decomposita (R. Br.) (v v.) ; L. quinquangularis (Kze.) 

 (v v.) ; L. recedens (/. Sm.) (v v.) ; L. elegans (/. 8m.)- 



(v v.). 



OBS. Sir William Hooker unites this with L. recedens, 

 but the two are quite distinct as is shown by cultivated 

 plants. 



L. sub-quinquefida (Beauv.) (v v.) ; L. variabile (Hook.) 

 (v v.) ; L. funesta (Kze.) (v v.) ; L. velutina (A. Rich.) 

 (v v.) ; L. pilosissima (J. Sm.) (G. Don in Hort.) (v v.). 



112. POLYSTICHUM, Schott. (1834). 



Aspidium sp. t Hook. Sp. Fil. 



Vernation fasciculate and erect, generally caespitose or 

 uniserial and sub-sarmentose. Fronds pinnate, bi-tri- 

 pinnate or decompound, pinnae and pinnules auriculated 

 and lobed, dentate, rigid, spinulose, mucronate. Veins 

 simply or pinnately forked ; venules free, the lower exterior 

 branch or more (of each fascicle) soriferous on, or generally 

 below its apex. Receptacles punctiform. Sori round. 

 Indusium orbicular or sub-reniform. 

 Type. Aspidium aculeatum, Swartz. 



Illust. Hook, and Bauer Gen. Fil., t. 48, C. ; Hook. Fil. 



Exot., t. 33 ; Schott. Gen. Fil., t. 9 ; Moore Ind. Fil., 



p. 67, B. ; J. Sm. Ferns Brit, and For., fig. 74 ; 



Hook. Syn. Fil., t. 5, fig. 43, a. b. 



OBS. Between forty and fifty species are described as 



