﻿21 22. DRYOPTERIS. § 2. NEPHRODIUM. 



Pleocnemia arislata, BedcL, Perns S.I., tab. LXXXTII; Aspidium olaria, Kze, 

 Christ, Farnkr. d. Erde, 249. 



Rhizome creeping. Stipes to 15 — 30 c.M. long, substramineous. Fronds 

 15 — 50 c.M. or more long, with a linear-oblong, terminal pinna 5 — 15 c.M. 

 long, 2 — 4 c.M. broad, the apex acuminate, the margin with finely serrated, 

 lanceolate lobes 4 — 8 m.M. long. Below this 3 — 6 distant, spreading, 

 similar pinnae on each side, the lower ones stalked. Texture thinly herba- 

 ceous; rachis and both surfaces naked; main veins pinnate in the lobes; veins 

 4 — 8 on each side, with sometimes a sorus on each. 



Philippines; Assmii, South. India, Ceylon. 



(67) O. alatella, C. Chr., Ind. Fil.; Nephrodium alalellum, Christ, 

 Sebum. & Laut, Flor. dent, Sch. geb., 112; Aspidium alatelhim, Christ, Bull. 

 Herb. Boiss., 2« Serie, I, 454. 



Rhizome not very wide-creeping. Stipes ± 60 c.M. long, dark-yellow, 

 smooth, clothed near the base with ovate, acuminate, broad, brown scales, 

 the rest sparingly scaly and hairy like the rachis. Fronds 35 — 40 c M. long, 

 ovate-oblong, + 15 c.M. broad, not narrowed towards the base. Pinnae erecto- 

 patent, 20 — 25 on each side, sessile, not adnate, 10 — 25 c.M. long, + 1^2 

 c.M. broad, linear-lanceolate, caudate-acuminate, the point nearly entire, the 

 margin cut ^/3-way down to the costa into numerous (+ 30 on each side), 

 truncate, coarsely crenate lobes + 3 m.M. broad. Texture flaccido-herbaceous ; 

 costae and main veins naked or slightly hairy: main veins pinnate in the 

 lobes; veins simple, the lower ones anastomosing. Sori medial on the veins; 

 indusium rudimentary, thin, fugacious, not rarely wanting. 



New Guinea. 



» (68) O. exlensa, O. Uttse^ C. Chr., Ind. Fil. ; Nephrodium extensum, 

 Moore (not lih.), Hk. Bk., Syn. Fil., 289; iV. pmctatum, Bedd., Ferns Br.I., 

 I, tab. CXXXI; Aspidium extensum, BL, Christ, Farnkr. d. Erde, 247; A. 

 conioneuron, Fee, Mett., Farng., IV, Phegop. & Aspid., No. 243. 



Rhizome creeping. Stipes 30 — 60 c.M. long, naked or slightly pubescent. 

 Fronds 45—120 c.M. long, 20—50 c.M. broad. Pinnae 1—2 c M. broad, cut 

 down + ^/j on the way to the costa into linear-oblong, falcate or straight, 

 slightly crenulate lobes; lower pinnae scarcely shorter than the others. Texture 

 papyraceo-herbaceous ; rachis nearly naked; upper surface naked or with a 

 few distant hairs; under surface hairy, and glandular with minute glands 

 between or on the veins; main veins pinnate in the lobes; veins 6 — 12 on 



