81 



Nephrodium(Lastrea)tokyoense (Matsumura) Makino Oontrib. Stud. 

 Flor. Jap. III. in Bot, Mag., Tokyo, XII. 1893, p. 87. 



Caudex short, erect or oblique, stout, thick, with densely branched rather 

 soft roots. Stipes c&espitose, erect, shorter than the frond, thick, herbaceous, 

 rufo-stramineous, densely clothed with scales throughout, 20-40 cm long ; 

 scales ample, rufous, thinly membra nceous, pellucid, ovato-oblong to oblong 

 in the inferior ones, often oblong-lanceolate to lanceolate in the superior 

 ones, usually entire, acute or minutely acuminate, with numerous very fine 

 and longitudinal nerves and areola3, largest one about 22 mm long, 11 mm 

 broad. Frond simply pinnate, but pinnatifid at the apex, lanceolate or 

 oblong-lanceolate, rather abruptly acuminate at the apex, gradually narrowed 

 below, herbaceous, naked above, dispersed with rufous fibrillose thinly 

 membranceous' scales towards the midvein of pinnae beneath, 55-120 cm 

 long, 15-28 cm broad ; rachis slender, rufous-stramineous, canaliculate 

 in front, scaly throughout, the scales much smaller than those of the stipe, 

 lanceolate to linear, acuminate, very thin, frequently crispate, often obscurely 

 and looly subdentate ; piame numerous, usually horizontally patent, shortly 

 apart from one another, narrowly lanceolate, gradually attenuated towards 

 the apex, gradually diminishing in size and more remote to each other to- 

 wards the base, sub sessile and rounded -obtuse at the base, obtuse or acute at 

 the apex, lobato-pinnatifld to crenato-lobed with erect-patent ovate and 

 usually acutely serrulate lobes, which are largest in the lowest both ones, 

 midvein slender, stramineous, prominent beneath ; vein slightly curved out- 

 wards, pinnate ; veinlets rather close, free, arcuate, simple, or bifurcate, or 

 sometimes trifurcate. Sori in upper portion of frond, solitary and dorsal on 

 lower veinlets, arranged in 2 rows near the midvein of the pinnae, or often 

 also in 2 rows and 2 to 7 to a lobe, rather loosely arranged, cordato-orbicular, 

 or orbicular-reniform ; indusium similar to the sori in form, subcoriaceo- 

 membranceous, entire : sporangia numerous, long pedicellate. 



Aspidium tokyoense Matsumura MSS. 



Nom. -Jap. Tani-hego (Z. Matsumura). 



Hab. Prov. Yamato: Mt. Kasuga-yama (Z. Matsumura \ herb. Sc. 

 Coll. Imp. Univ. Tokyo, July 15, 1883) ; Prov. Musashi : Dokwan-yama 

 near Tokyo (Z. Matsumura ! herb. 1. c. Decern. 1884) ; Prov. Tosa : Yunoki 

 in Hata-gori (T. Makino ! August 6, 1889); Prov. Mikawa : Ayase in 

 Higashi-Kamo-gori (G. Nagural June 22, 1895). 



A rare species, differing from Nephrodium Dlckinsii (Fr. et Sav.) 

 Baker by the form of pinnse, the position of sori, and the texture of the 

 frond. 



