POLYPODIACE2E. 



203 



cellularibus brevissimis apice plus minus clavatis, supra canaliculata, petiolis 

 pinnarum supra canaliculatis cum rhachibus frondium articulatis ; textura mem- 

 branacea ad marginem valde tenuissima, costis venis venulis utraque pagine 

 planis subtus leviter elevatis distincte visis parce pilis glandularibus uni- 



Picj. 137, Nephrolepis tenuissima HAYATA ; a, the plant ; f, a scale on the rhizome ; 

 c, a part of a rhachis with a petiole; d, a glandular hair on the same; e, a pinna; b, a 

 sorus ; g, an indusium. 



