﻿514 606. DICTYOPTERIS. §j 1. ARCYPTERIS, 



(2) SS>. a.nda.ieii!Si!S, ». A. v. JS./ Polypodium andaiense, Bk., Becc. 

 Mai., Ill, 45; Aspidium andaiense, C. Chr., Ind. Fil. 



Stipes strong, brown, ± 90 c.M. long, the base densely clothed with 

 linear, elongate, crisped, brown scales. Fronds ample, deltoid, 2-pinnate. Pinnae 

 oblong, lanceolate, the lowest the longest, + 30 c.M. long. Pinnulae2'/2 — 4 c.M. 

 long, lanceolate, adnate at the base, the margin conspicuously crenate. Surfa- 

 ces naked; venation rather as in Campteria; main veins erecto-patent ; higher 

 veins curved, free, paucijugate. Sori small, semiglohose, placed in horseshoe- 

 shaped arches. 



New 'Guinea. 



(3) D. Dryanti, «. A. v. JR.; Aspidium Bryanti, Copel., Polypod, 

 Philipp., 54; C. Chr., Ind. Fil.; Tecfaria Bryanti, To/^e/., Philipp. Journ., II, 412. 



Stipes 20 — 40 c.M. high, strong, reddish-brown, winged, the scales scat- 

 tered, spreading, the wing entire, not narrowed, with a truncate base + 1 c.M. 

 broad on each side. Fronds 30 — 50 c.M. long, ovate, 3-fid with the lateral 

 segments approximate, or often 5-fid with the lowest segments distant. Ter- 

 minal segment 20 — 50 c.M. long, ± 10 c.M. broad, acuminate, entire or sub- 

 repand; lateral segments similar, 10—18 c.M. long, 5 — 7 c.M. broad. Texture 

 papyraceous; main veins curved, reaching nearly the margin; transversal veins 

 arching, conspicuous; areolae large, regular, divided into irregular smaller 

 ones, with free veinlets. Sori mostly in rows along the main veins. 



Philippines. 



(4) D. sulidecurrenis, «. A. v. Je.,* Phegopteris subdecurrens, Luerss., 

 Bot. Centralbl., XI, 30; Aspidium subdecurrens, C. Chr., Ind. Fil. 



Stipes dark-red-brown, opaque, naked like the rachis and costae. Fronds 

 + 40 c.M. or more long, + 20 c.M. or more broad, elliptic, pinnate. Pinnae 

 + 5 on each side below the deeply pinnatifid apex, + 4 Y2 c.M. broad, entire, 

 the lowest pair stalked, deltoid, acumifiate, obliquely lanceolate, forked at the 

 base on the lower side. Terminal pinna large, rhomboidal, narrowed gradu- 

 ally at the base, 3-lobate, the lowest lobes large, the central lobe 3-Iobate 

 again with a large, ovate central part and 2 small lateral lobes. Costae pro- 

 minent; main veins slightly curved, distinct nearly to the edge; areolae large, 

 with included smaller areolae, without or rarely with some few free veinlets. 

 Sori in 2 — 4 regular rows between the main veins, forming 2 rows on each 

 side of the costae. 



Singapore. 



