; BOTANICAL 



Asplenium Nakanoanum Making, sp. nov. 



Caudex short, thick, repent, densely covered with black 

 small scales ; roots short, densely tomentose with brownish- 

 black hairs ; scales ovato-subulate, attenuately long-acuminate, 

 rounded and peltate or subpeltate at the base, entire but very 

 scantily papillose on margin, 3-4 mm. long, areolae angulately 

 oblong to narrowly oblong, with dark and strong venules. 

 Fronds densely caespitose, lanceolate, shortly acuminate with 

 an obtuse or sometimes acute tip at the apex, long-tapering 

 gradually below into a short winged stipes, indistinctly depressed- 

 crenate (with a point near the front end and often with a 

 retuse margin) to the apex except the basal portion, 9-23 cm. 

 long, l-2Jcm. broad, thickish, subcoriaceo-herbaceous, deep- 

 green above, pale-green beneath, scattered with minute dark 

 scales on both surfaces but denser towards the midrib beneath; 

 midrib thick, distinctly prominent above and scarcely so 

 beneath ; veins rather distant, erect-patent, usually bifurcate, 

 stopping before reach to the margin, immersed, inconspicuous ; 

 scales minute, unequal in size, subulate or deltoid-subulate, 

 at the base radiately parted into the oblong to linear-oblong 

 with an obtuse thick dark tip, with the strong black venules 

 forming the oblong to linear areolae. Sori nigrescent but 

 fulvous or brownish-fulvous when dried, occupying almost the 

 whole back of the frond, erect-patent, distant, short, one-halt 

 to two-third the length of the veins, closer to the midrib than 

 in the margin, 3-10 mm. long, straight or scarcely arcuate back- 

 wards; indusium pale-coloured, firmly membranaceous, entire- 

 margined. Sporangia numerous, long-stalked ; case oval ; 

 stalk filiform, usually much longer than the case. Spore 

 ellipsoid, umber, rugoso-muricate. 

 Nom. Jap. Fusa-saziran (nov.). 



Hab. Prov. OSUMI : Isl. Yakushima (T. Making! Sept. 

 1909; Y. Nakang! Aug. 1911). 



This fern comes near to Asplenium Griffithianum HoOK-, 

 A. angustatum Swartz, A. concolor IIook. and A. ensi forme 

 Wall., but it differs from the first by having the inconspicuous 

 depressed-crenate teeth and the majority of the veins bifurcated, 



