﻿406 53. DIPLAZIUM. § 1. EUDIPLAZIUM. 



Rhizome short, stout, clothed with brown, lanceolate scales. Stipes tufted, 

 15 — 30 c.M. long, erect, firm, stramineous, scaly at the base. Fronds ± 

 20 — 100 c.M. long, with a large terminal and 1 — 8 pairs of ± stalked, 

 lateral pinnae. Pinnae 10 — 20 c.M. long, ± 2 — 5 c.M. broad, narrowed at 

 both ends, the point acuminate, the edge serrate or nearly entire; higher 

 pinnae sessile. Texture coriaceous but rather thin; surfaces naked; veins ± 

 3X forked. Sori narrow, irregular, the longest reaching nearly from the 

 midrib to the edge. 



War. alternifolium : Stipes green, passing gradually into brown 

 at the base. Pinnae ovate, broad, T'/j — 10 c.M. long, the base rounded or 

 cordate, the edge entire, obscurely sinuate or subcrenato-serrate towards the 

 apex. Texture subcarnoso-coriaceous. 



Trop. Asia; — var. alternifolium: Java. 



(16) D. xiphopbylluin, C. Chr., Ind. Fil. ; Asplenium xiphophyl- 

 lum, Bk., Journ. of Bot., XVII, 40. 



Rhizome suberect. Stipes close, to 30 c.M. long, the base densely clothed 

 with large, brown, linear scales. Fronds oblong-deltoid or deltoid, simply pin- 

 nate, 30 — 45 c.M. long, with a terminal pinna similar to the lateral ones. Pinnae 

 13 — 25, subsessile, lanceolate, 20 — 25 c.M. long, 2 — 4 c.M. broad, toothed and 

 much acuminate at the point, cuneate at the base. Texture subcoriaceous ; 

 surfaces naked; veins in pinnate groups of 3 — 4. Sori reaching from the 

 midrib to the edge; indusium narrow, naked, persistent. 



Borneo. 



(17) D. palauaueoise, Copei., Polypod. Philipp., 72. 



Stipes firm, 30 — 40 c.M. long, the base black and covered with black 

 scales, the higher part stramineous. Fronds 30 — 60 c.M. long, pinnate. Pinnae 

 alternate, distant, ± 6-jugate, the largest + 30 c.M. long, 272 — 3 c.M. broad, 

 acute, obscurely serrate, the higher ones sessile, the lower narrowed at the 

 base into a short stipe, both sides nearly equal. Texture coriaceous; rachis 

 naked; surfaces naked; veins 2 — 3X forked. Sori linear, distant from the 

 margin. 



Philippines. 



(18) D. larutenise, Bedd., Handb. Ind. Ferns, Suppl., 38. 

 Rhizome erect. Stipes + 30 c.M. long, firm, erect, naked. Fronds narrow, 



linear-lanceolate, ± 30 c.M. long, 4 — 5 c.M. broad, broadest at the base, gra- 



