﻿208 22. DRYOPTERIS. § 2. NEPHRODIUM. 



•{•. Sori submarginal, or terminal on the veins. 

 :^. Pinnae ± 6 c.M. long, cut '/^ — ^j^-way down. 



(103) D. Benoiliana. 

 ;tc.:^. Pinnae + 7^2 — 9 c.M. long, cut "^i^-way down or 

 more. (106). D. didymosora. 



•{•.•{•. Sori medial, or lower on the veins. 



(107) D. microchlamys. 

 a.a.. Lower pinnae conspicuously reduced or dwindling down mio mere 

 auricles. 

 |3' Lower pinnae gradually reduced. 



i(:. Stipe and rachis glaucous. (108) D. glaucostipes. 



%.i(i. Stipe and rachis not glaucous. 



•J". Fronds under 40 c.M. long. (109) ^- perakensis. 



•{•.f. Fully developed fronds more than iOO c.M. long. 



(110) D. suraatrana. 

 P'.P'. Lower pinnae suddenly reduced. 



y'. Pinnae cut less than ^j^-way down to the cosla (*) 



<?'. The lowest veins anastomosing. Pinnae provided with a 



short, thick gland at the base beneath. (Ill) D. stipellata. 



S'S' The 2 — 3 lower veins anastomosing. Pinnae without gland. 



(112) D. truncata. 

 y'.y'. Pinnae cut more than ^j^-way down to the costa. ; 

 jtc. Veins 3 — 4 on each side of the costulae. 



(113) D. hispidula. 

 )jc.>ic. Veins 6 — iO on each side of the costulae. 



X. Stipe and rachis hairy. (H'^) D. heterocarpa. 



x.x. Stipe and rachis scaly. (H^) D. crinipes. 



(63). D. Bakeri, Copeh, Philipp. Journ., II, 408 ; D. canescens, C. 

 Chr., var., C. Chr., Ind. Pil. ; Aspidium canescens, Christ, Ann. Btz., XV, 130, 

 p.p. ; Nephrodium Bakeri, Harr., Copel., Polypod. Philipp., 27 ; Hk., Icon. PI., 

 XVII, tab. MDCLXIV. 



Stipes clustered, light-brown, villose or scaly, 5 — 13 c.M. long. Fronds 

 7 — 15 C.3I. long,l — 2V2 c.M. broad, oblong-oblanceolate, obtuse, coarsely crenate, 

 the segments extending about '/s the distance to the midrib, with usually 

 2 — 4 distant, oblong-ovate, sessile pinnae at the base, rather smaller than the 



(*) See also D. abortiTa 0. Ktze, & megaphylla; C, Chr. 



