98 



FEENS : BEITISH AND FOEEIGW. 



pinnatifid, generally membranous, flaccid, 1-3 feet long. Veins 

 compound anastomosing ; primary veins costasform, elevated or 

 internal, generally flexnose, sometimes obsolete. Mecsptacles 

 compital, superficial. 8ori round, or by confluence oblong or 

 linear, irregular or obliquely 1-2-serial. 



1. C. membranaoea, J. Sm. Polypodinm membranaceum, 

 Bon. Polypodinm bemionitideum. Wall.; Lowe's 

 Fei-as, 2, t. 7. Colysis hemionitidea, Presl. ; ,Fee. 

 Hemionitis plantaginaa, Don. Polypodinm gran- 

 difoUum, Wall. — Bast Indies. 



2 C. Spectra, /. Sm. Polypodinm spectrum, Kav,lf. Poly- 

 podium Thoiiinianum, Ocmd. in Freyo. Voy. Bot. t. 5, 

 /. 1.— Sandwich Islands. 



26. MICROSOE.UM, LinJc ; Fe». 



BMzome short, subhypogeous. Fronds simple, entire op 

 irregularly sinuose, coriacepus, smooth, 1-3 feet long Ferns 



Genus 25.— Portion of mature frond, nppcF side. No. I. 



compound anastomosing, internal ; primary veins obscure. 

 iJecepiacZfs. compital, superficial. Sori round, small, numerous, 

 irregular, sometimes subconfluent. 



1. M. irioides. Fee. Polypodinm irioides. Pair. ; Sooh. et 

 Orev. Ic. Fil. 1. 125. SooJc. Fil. Fxot t. 4. Poly- 

 podium polycaphalum. Wall. Microsorum irregulare, 

 Link ; Pee. Microsorum sessile. Fee. — /3 apex of 

 fronds crested. — East Indies, Malayan Archipelago, 

 Australia, and Trinidad. 



