﻿34. DAVALLIA. § 1. SCYPHULARIA. 297 



(1) O. tripbylla, Hfe., Hk. Bk., Syn. Fil., 94; Hk., Spec. Fil., I, 

 tab. XLVl, A; Bedd., Ferns Br.L, I, tab. CV. 



Rhizome creeping, stout, densely clothed with chaffy scales. Stipes scat- 

 tered, 5 — 10 c.M long, erect, strong. Fronds ternate. Central segment linear, 

 10—15 c.M. long, 1 — 2 c.M. broad, obtuse, entire, the very base cuneate, 

 short-stalked, lateral segments similar but shorter, sessile, oblique at the base. 

 Texture coriaceous; veins copious, crowded, parallel, forked, Hat. Sori placed 

 in a close row along the margin; indusia semicylindrical, compressed, conti- 

 guous so as to form an uninterrupted marginal line along whole the length 

 of the leaflets. 



Malacca. 



« (2) D. pentaphylla, SL, Rac, Flor. Biz., I, 15:^; Diels, in Engl. 

 k Prantl, Nat. Pfl.Fam., P, fig. 115, J; (Christ, Farnkr. d. Erde, lig. 947; 

 Hk., Fil. Exot., tab. XXXVII. 



Rhizome wide-creeping, the scales dense, rounded, adpressed, peltate at 

 the base, the long, hair-like point spreading. Stipes scattered, strong, erect, 

 5 — 10 c.M. long. Fronds with 2 — 3 pairs of lateral pinnae and a terminal 

 one. Terminal segment 4 — 15 c.M. long, 1 — -2 c.M, broad, of the barren 

 frond the broadest and shortest, stalked, linear, bluntish, the base cuneate, 

 the edge more or less crenate or serrulate, lateral segments similar, but com- 

 monly shorter, sometimes sessile, the lowest pair sometimes with 1 — 2 similar, 

 smaller pinnulae at the base. Texture coriaceous; veins close, forked, parallel, 

 flat. Sori close, numerous, in rows along the margin ; indusia semicylindrical, 

 often contiguous, 



Malaya. 



% 2. COLPOSORIA. 



a. 



Rhizome scales with a small, roundish or oblong, pellale base, the apex sud- 

 denly narrowed into a very long, hair-like point. Rachis and surfaces hairy 

 or fibrillose. (Davallodes). (3) D. hirsuta. 



a.a. Rhizome scales otherwise. Rachis and surfaces naked or + scaly. (Eu- 

 davallia). 

 b. Veins with a terminal, calcareous scale on the upper surface of the 



frond. (4) D. Korthalsii. 



h.h. Upper surface ivithoul calcareous scales. 



c. Indusium + as broad as long or broader. 



