t 
426 ART. 1.—B. HAYATA :! 
conspicuo ovato-triangulari 6 em. longo 24 cm. lato  sursum 
acuminato apice obtuso basi latissimo sursum  ascendento- 
recurvato a lobo terminali angulo 90° divaricato margine integro ; 
nervis ven.sque ut lobi terminalis; rhaches frondium tetragono-teretes, 
supra sulcate latere plane subtus convexe parcissime pubescentes ; 
coste foliolorum supra planis dense brevissime hirsute subtus 
parcissime minute piloso-squamate minute parce maculate, venis 
et venulis utraque plus minus elevatis distinctis, venulis inter 
venas reticulatis areolis venulis liberis plus minus ramosis. Sori 
marginales 1-2-3-seriatim dispositi, ad venulas liberarum dorsales, 
globosi 1 mm. in diametro. Indusium profunde cordatum 1 mm. 
in diametro, margine longe ciliolatum. 
Has. Hokuto, leg. G. Naxanara, Dec. 1906. 
Very near A. trifoliatum, but differs from it in the position of 
sori which are nearly limited towards the margin. 
Aspidium melanocaulon Biume; C. Curisrensen Ind. Fil. p. 82. 
Nephrodium melanocaulon Baker. 
Has. Liukiu, Hanechiyama, leg. G. Naxanara, Aprili. 
Distrip. South China, Tonkin, Malesia, Philippines, N. Guinea, 
Aspidium subtriphyllum Hoox.; Hayara in Tokyo Bot. Mag. 
XXII. p. 25. 
Polystichwm Rorn. 
Polystichum faleatum Drets var. caryotideum (Watt.) ; Hayara 
in Tokyo Bot. Mag. XXIII. p. 25. 
Polystichum stenophyllum Curist in Bull. Soc. Bot. France 
LIT. Mém. I. p. 27. 
