﻿34. DAVAILIA. § 2. COLPOSOBIA. 305 



* (19) D. divaricata, Bl., Rac, Flor. Btz., I, 138; D. polyantha, 

 Hk., Spec. Fil., I, tab. LIX, A; Bedd., Ferns Br.I., I, tab. CVII. 



Rhizome stout, creeping, the scales linear-lanceolate, dense, ferrugineous 

 or pale-brown, with the base truncate, not peltate, the edge entire or beset 

 with short, spreading teeth or ciliae, the apex acuminate or acute, not ad- 

 pressed, deciduous. Stipes firm, erect, 15 — 30 c.M. long, naked. Fronds 

 60 — 90 c.M. long, 3-pinnatifid to 4-pinnate. Lower pinnae often 30 c.M. 

 long by 15 c.M. broad. Ultimate segments linear-oblong, toothed. Texture 

 coriaceous; surfaces naked. Sori numerous, 1 to each tooth of the ultimate 

 segments; indusium half-cupshaped, often ± l'/2 X as long as broad, the 

 apex at some distance (+ ^j^ — 1 m.M.) from the margin of the segment. 



Trop. Asia. 



* (20) O. solida, Sw., Rac, Flor. Btz„ I, 157; Hk., Spec. Fil., 

 I, tab. XLII; Hk., Fil. Exot., tab. LVH; Bedd., Ferns Br.I., I, tab. CIV; D. 

 elegans, Hedw., Fil. Gen. <fc Spec, 1803; — var. caudata; D. caudata, Cav., 

 Descr., d802, 279; — var. Lindleyi; D. Lindleyi, Hk., 1. c, 163, tab. LVIII, 

 B; — var. ornata; D. ornata, Wall., List, No. 246. 



Rhizome stout, wide-creeping ; scales adpressed, black, white when young, 

 the base roundish, peltate, persistent, the apex finely acuminate, the margin 

 beset with spreading, cobwebby, deciduous, adpressed, interlaced fibres al- 

 together forming a dense, flat coat to the rhizome. Stipes distant, strong, 

 erect, 10 — 20 c.M. long, naked. Fronds ovate-deltoid, 15 — 60 c.M. long, 15 — 

 40 c.M. broad, 5-pinnatifid to -pinnate, the apex with a moderately broad, 

 undivided centre. Ultimate segments ovate-rhomboidal, ± 3 X as long as 

 broad, deeply toothed, narrower and sharper in fertile fronds. Texture coria- 

 aceous; surfaces naked. Sori in the teeth, sometimes with 1 — 2 horns 

 beyond ; indusium semicylindrical, ± 2 X as long as broad, the apex nearly 

 or quite reaching the edge of the frond. 



Var. caudata: Ultimate segments acuminate to caudate. 



Var. Liindleyi : Pinnulae more divided, with narrower segments. 



Var. ornata: Ultimate segments broad, slightly cut. 



Malaya ; Polynesia, Queensland. 



(21) n. embolositegia, Copel., Philipp. Journ., I, Suppl., 147, 

 tab. HI. 



Rhizome creeping, densely clothed with ferrugineous, brunnescent, linear 

 scales. Stipes distant, 30 — 50 c.M. long, naked, glossy. Fronds deltoid, 



FiLICES. 20 



