﻿19. POLYSTICHUM. 165 



d.d. Pinnulae decurrent, joined at the base. (6) P. lobatum. 



b,b. Main rachis naked, or slightly scaly or fibrillose. 



1. Sori submarginal. (7) P. amabile. 



1.1. Sori distant from the margin. 



2. Sori costal. (8) P. platypus. 



2.2. Sori ± medial. 



3. Lowest pinnae deeply 2-pinnatifid at the base on the lower 

 side. (9) P. varium. 



3.3. Lowest pinnae at least 2-pinnate at the base on the lower 

 side. 



1. Rhizome creeping; the scales hair-like or + setiform. 



(10) P. aristatum. 

 ■1.1. Rhizome erect; the scales long, linear-lanceolate. 



(11) P. coniifolium. 



(1) 1*. auriculatum, .Pr., Tent. Pterid., 85; Aspidium auriculatum, 

 Sw., Hk. Bk., Syn. Fil., 251; — var. nervosum, Christ, in Bull. Herb. Boiss., 

 VI, 192; Phegopteris nervosa, Fee, Mem., VI, tab. II, fig. 4. 



Stipes tufted, 10 — 15 c.M. long, scaly below or throughout. Fronds 30 — 

 45 c.M. long, 5 — 10 c.M. broad. Pinnae numerous, subsessile, usually close, 

 2Y2 — 5 c.M. long, 1 — 1'/2 c.M. broad, ovate-rhomboidal, falcate, the point acute, 

 the edge spinoso-serrate, not lobed ; the upper base with a prominent auricle, 

 the lower one truncate. Texture subcoriaceous; rachis stramineous, slightly 

 scaly. Sori in 2 rows. 



Var. nervosum: Stipes decumbent; pinnae small, crenate, not 

 arista te; sori scattered, small; indusium hardly present. 



Malacca; Ceylon, Br. India; — var. nervosum: Philippines; Formosa. 



* (2) ■•. eliaphaniHiii, Moore, C. Chr., Ind. Fil.; Aspidium diapha- 

 num, Zoll. ^ Mor., Rac, Flor. Btz., I, 175. 



Rhizome short, erect, densely clothed with ferrugineous, lanceolate, acu- 

 minate, ciliate scales. Stipes 3 — 6 c.M. long, densely scaly. Fronds + 10— 

 15 c.M. long, + S'/i — 5Y2 c.M. broad. Pinnae sessile or the lower ones 

 stalked, oblong-rhomboidal, the base obliquely cuneate, the edge toothed to 

 lobed and toothed. Lowest pinnae pinnate with few, small, obovate pinnulae 

 at the base. Texture thin; rachis densely scaly; the edges and both surfaces 

 hairy; midribs wavy. Sori 1 — 6 on each side of the costae. 



Java. 



