45 



caudately prolonged above with an obtuse tip, narrowed gradually and 

 decurrent below, apparently petiolate, irregularly obscurely subrepand, 

 ehartaceo-subcoriaceous, glabrous, 8-26 cm. long, l-2f cm. broad ; midrib 

 slender, prominent on both sides ; main veins not distinct, not reached to 

 the margin ; veinlets forming oval to narrow-oblong and angular areolfe 

 including a simple or divaricately bifurcate free venule with a minute 

 tubercle at the «nd ; petiole l-4i cm. long. Sori absent in the lower 

 portion of the frond, one-seriate on each side and arranged nearer the 

 midrib than the margin, a little distant from one another, 2-4 cm. across, 

 covered with irregularly denticulate peltate scales when young. 



'Hah. Prov. Tosa : Mt. Honokawa (F. YosMnagal Aug. 10, 1887; 

 T. Makino ! Aug. 10, 1887, Aug. 1889.) 



This differs from the typical one by the thinner and much broader 

 frond, having a resemblance to Polypodium annuifrons Makino, from which 

 it is often hardly distinguishable in dried specimens, but the frond is 

 persistent and often long-tailed at the apex. 



Nephrodium lacerum (Thunb.) Baker a. typicum. 



Scales of the stipes and rachis ferrugineo-rufous or sometimes fusco- 

 ferruginous. Frond elliptical to oblong ; pinnre 10-15 on each side ; the 

 soriferous portion contracted. Sori closely placed, occupying in the upper 

 third of the frond. 



Hah. Prov. Tosa : Sakawa (T. Maldno !), Mt. Yokogura {T. 31akino ! Aug. 

 28, 1887); Prov. Hitachi : Mt. Tsukuba {T. Mah'no\ May 27, 1900); Prov. Mu- 

 SASHi: Tokyo, Bot. Gard. Koishikavva, cult. (T. Makino \ June 1899, Oct. 

 1900). 



/?. uniforme Makino. 



Scales fusco-rufous in the stipe and fuscous in the rachis, or some- 

 times all ferrugineo-rufous. Fronds usually larger than those of the 

 typica, oblong to oblong-lanceolate, attaining about G decim. in length ; 

 pinnee numerous, 16-22 on each side ; the soriferous portion not contract- 

 ed. Sori occupying in the upper half or more of the frond, a little laxly 

 placed. 



Hah. Prov. Tosa: Sakawa {T. Makino \ Aug. 20, and Sept. 7, 1887, 

 May 26, 1889); Prov. Sagami : Hakone {T. Makino \ Oct. 6, 1886); 

 Prov. MusASHi : Ikegami {T. 3Iakmo ! 1886), Tokyo {T. Blakino ! May 1897), 

 Dokwan-yama {T. Makino\ June 1898), Shimura (2\ Maldno\ Oct. 1901.) 



