﻿78. ELAPHOGLOSSUM, § 1. ACONIOPTEMS. 713 



Rhizome creeping, woody, the scales blackish, ovate, jagged or fimbriate, 

 not hair-pointed. Stipes firm, approximate, erect, 5 — 8 c.M. long, blackish 

 at the base, generally clothed with scattered, pale, sheathing scales. Sterile 

 fronds S — 30 c.M. long, 2—3 c.M. broad, lanceolate, narrowed towards both 

 ends, the point acute or acuminate, the edge entire, decoloured or cartilagi- 

 neous, slightly revolute in age. Fertile fronds the longest and narrowest, 

 longer stalked. Texture coriaceous; both surfaces covered with a few deci- 

 duous scales when young, those on the midrib beneath the largest; veins 

 hidden, generally once forked. 



Pantropical. 



* (3) E. angulatum, Moore, C. Chr., Ind. Pil. ; Aerostichum an- 

 gulatum, BL, Rac, Flor. Btz., I, 47; Bl., Flor. Jav., II, 25, tab. VI. 



Rhizome creeping, the. scales yellowish, lanceolate, thinly membranaceous. 

 Stipes firm, erect, stramineous, naked or slightly scaly, 1 — 3 c.M. apart, 

 5 — 20 c.M. long, those of the fertile fronds the longest. Fronds elliptical- 

 lanceolate, 8 — 40 c.M. long, 2 — 4 c.M. broad, the fertile ones the smallest, 

 narrowed towards both ends, the apex acute, the margin entire, with a nar- 

 row, decoloured line. Texture coriaceous; surfaces naked or slightly scaly 

 on the midrib beneath; veins subparallel, simple or forked. 



Java. 



* (4a) E. decurrens, Moore, C, Chr., Ind. Fil.; Aerostichum de- 

 currens, Desv., Rac, Flor. Btz., I, 47; Bl., Flor. Jav., II, 32, tab. X;A.oblusi- 

 folium, Spr. (not Brack), Hk., Spec. Fil., V, 204; — var. Cumingii; E. Cu~ 

 mingii, Moore, Copel., Polypod. Philipp., 157; A. Cumingii, hee, Hk. Bk., Syn. 

 Fil., 407. 



Rhizome creeping, the scales dense, long, linear-lanceolate, brown. Stipes 

 2^/2 — 15 c.M. long, those of the fertile fronds the longest. Barren fronds 

 15 — 40 c.M. long, 4 — 8 c.M. broad, the apex bluntly rounded, the margin 

 cartilagineous or ± pellucid, the lower part narrowed gradually into the 

 stipe. Texture coriaceous; surfaces naked or the under side sparingly and 

 minutely scaly, the edge more or less fringed with minute, ovate-lanceolate, 

 acuminate, thin, brown scales; veins immersed, nearly hidden. Fertile fronds 

 often small and narrow. 



Var. Cumingii: Stipes longer; barren fronds 3 — 4 c.M. broad, fer- 

 tile ones narrower; upper surface scaly like the lower. 



Sumatra, Java, Moluccas, Philippines; — var. Cumingii: Philippines. 



