﻿180 22. DRYOPTERtS. § 1. LASTRAE. 



§. Tertiary segments toothed. Sori subcostular. (55) D. Boryana. 

 §.$. Tertiary segments at least pinnatifid. Sori + medial. 



(56) D. purpurascens. 

 1.1. Rachis hairy or fibrillose, at least on the upper side. 



2. Surfaces densely hairy like the rachis. (57) D. crenata. 



^2.2. Under surface slightly hairy or scaly on the veins. 

 3. Rachis slightly fibrillose, the fibrils deciduous. 



(58) D. rhodolepis. 

 3.3. Rachis pubescent on the upper side. (59) D. setigera. 

 ±.±.±. Rachis scaly or bristly. 



•J". Scales of the stipe ovate; under surface ± glandular. 



(60) D. zeylanica. 

 •J-.-J". Scales of the stipe bristle-like; under surface naked or hairy. 



(61) D. multiseta. 

 •{•.f.f. Scales of the stipe subulate; under surface scaly. 



(62) D. subarborea. 



(1) D. IWarburgii, C Clif., Ind. Fil.,; Aspidium Warburijii, Kuhn 

 ^ Christ, Warb., Mons., I, 81 ; — var. reticulata, Christ, 1. c. 



Stipes tufted, very short, nearly wanting. Fronds ± 10 c.M. long, + 

 2 c.M. broad ; rachis hairy. Pinnae ligulate, bluntish, the upper base truncate, 

 the lower one cuneate, the margin entire or slightly crenate. Veins simple 

 or forked. Sori minute, medial, in 1 row on each side of the midribs, 8 — 10 

 to a row; indusium small, fugacious. 



War. reticulata: Pinnae ovate; veins ± anastomosing. 



New Guinea. 



* (2) D. liirtipeiS, C. Chr., Ind. Fil.; Aspidium hirttpes, BL, Rac, 

 Flor. Btz., I, 168; A. atratum, Wall., Mett., Farng., IV, Phegop. & Aspid., 

 No. 126; Lastraea hirtipes, Moore, Bedd., Ferns S.I., tab. XCVI; Nephrodium 

 hirtipes, Hk., Hk. Bk., Syn. Fil., 261. 



Rhizome short-creeping; the scales dense, long, lanceolate-subulate, dark- 

 coloured. Stipes subtufted, 16 — 35 c.M. long, scaly; the scales black-brown, 

 the lower ones large, lanceolate-subulate, the higher ones linear-subulate or 

 filiform; Fronds 15 — 60 c.M. long, 8 — 35 c.M. broad, pinnate, the apex 

 pinnatifid. Pinnae I'/a — ^Va ^-M- broad, short-stalked, the highest sessile, 

 the lowest longest, linear-lanceolate, the base truncate, the edge lohed from 



