Plantse Japonenses novse vel minus cognitse. 



(Continued from p. 48.) 



By 



T. Makino, 



Assistant of Botany in the Science College, 

 Imperial University, Tokyo- 



Ptilopteris fiagellaris Makino nom. nov. 



Caudex short, repent, with the basal remains of old stipes and hard 

 capillaceous roots. Stipes caespitose, generally 4-5 in number, shorter than 

 the frond and 6-28- sometimes 37 cm long, slender, canaliculate in front, 

 castaneous-hrcwn, sparse with deciduous and very minute glandular hairs 

 throughout. Frond lanceolate or narrowly deltoid, much prolonged towards 

 the apex, which is often rooting and viviparous, bipinnatisected, or tripin- 

 natind when well developed, 2.5-87 cm long, 7-20- sometimes 28 cm broad, 

 thin, herbaceous, olivaceous when dry, naked on the upper surface, but 

 scattered with very minute glandular hairs beneath ; pinnae numerous, 

 alternate, usually horizontally patent, or sometimes more or less reflexed, 

 moderately closed, pinnatisected or sometimes bipinnatifid, but pinnatifid 

 above, pinnatifid in the superior ones, lanceolate, sessile, attenuated towards 

 an obtuse apex, gra dually decreasing in size upwards and the upj^ermost ones 

 much reduced into very minute segments about 1 mm. in length, larger 

 ones 9-J-l6cm long, 2-4 1 era wide, the rachis margined with very narrow 

 wings which are decline nt from pinnules : pinnules numerous, regularly 

 arranged," patent, moderately closed, rhombeotriangular-lanceolaie, or rhom- 

 beo-ovate, subsessile, obtuse, obliquely cuneate or broadly cuneate at the 

 base, upper lower edge parallel to the rachis, pinnatifid or pinnatipartite 

 into 3-10 entire or paucicrenato-dentate ovate=oval segments on each side, 

 but crenato-pinnatifid in the superior ones, upper lowest segment larger, 

 larger pinnules 12-25 mm long, 7-10 mm broad ; veins flexuous, pinnate : 

 veinlets erect-patent, loose, 1-10 on each side, simple or bifurcate, or 

 pinnate in well developed ones ; main rachis slender, canaliculate in front, 

 stramineous, dispersed with minute glandular hairs as it is the case with 

 the stipe. Sori small, punctiform, yellow, terminating the veinlets, which 

 are stopping before reaching to the margin, 1-3- sometimes 5 to a segment, 

 but often 4-5- or 8 to the upper lower segment. 



Polypodium flagellare Maxim, in litt. non Christ. 



