TAB. LYIII. 
NlPHOBOIiUS LINEARIFOLIUSj Hook, 
Caudlce longe repente ramoso saepe copiose radiculoso 
squamis subulatis ferrugineis dense imbricatis nitidis 
setoso-paleaceo, frondibus sparsis erectis carnoso-coriaceis 
sessilibus 3-4 nncias longis 1 lineam latis linearibus totis 
pilis stellatis pallide ferrugineis tectis, demum superne pras- 
cipue nudiusculis viridibus, soris oblongo-rotundatis bise- 
rialibus series in dimidiam superiorem frondis, venis remotis 
anastomosantibus, areolis appendiculatis. 
Hab, Island of Tsus Sima, gulf of Korea, growing on rocks 
along with Pleopeltis nuda^ Hook. (Polypodium sesquipe- 
dale, Wall) 
The genus Niphoholus of Kaulfuss, is one among the Poly-- 
podioid Ferns that is retained by some Botanists and rejected 
by others. Few as are its characters, it is generally easily 
distinguished by its habit and its stellato-tomentose covering. 
Its venation is very indistinct and difficult to be seen and to 
be accurately represented, and is said by Presl to be different 
in different species. Then as to specific differences they de- 
pend mostly on the outline of the fronds which are uniformly 
undivided. In favor of this being considered distinct I may 
observe that its fronds are so narrow and so uniformly small 
(4 inches being the extreme length) that it is at once dlstin- 
guishable from every other kind known to me. 
Tab. LYIII. Plant of Niphoholus linearifolius ; nat size. 
Fig. 1. Apex of a fertile frond; — magnified, f. 2. Fertile 
portion, more highly magnified, and exhibiting the venation. 
/. 3. Tuft of stellated hairs ; very highly magnified. 
Cent. 2 , t. 58 . 
