304 34. DAVALLIA. § 2. COLPOSORIA. 



boidal segments. Texture coriaceous ; surfaces naked. Sori occupying the 

 greater part of the teeth in which they i are placed, with usually a large horn 

 or 1—2 teeth projecting beyond; indusium deeply half-cupshaped, more long 

 than broad, the apex ± reaching the margin. 

 Trop. Asia, China, Japan. 



* (16) O. fruetuosa, Christ, Warb. Mens., I, 86. 



Scales of the rhizome filiform, pale-brown, long, spreading. Stipes naked, 

 stramineous, + 15 c.M. long. Fronds deltoid, ± 23 c.M. long, + 18—24 

 c.M. broad, 4-pinnatifid. Pinnae 10—12, the lower ones ovate-acuminate, 

 the rachis narrowly winged. Pinnulae deltoid-ovate, spreading, pinnate, with 

 the divisions pinnatifid to the rachis; segments narrow, linear, bearing the 

 sori on the + dilated apices. Texture coriaceous. Indusium half-cupshaped 

 to semicylindrical, opaque, slightly emarginate, narrowly winged by the edge 

 of the segments, with a short tooth beyond. — Near D. fijiensis, Hk. 



Java. 



(17) D. trichomaiioides m., Hk. Bk., Syn. Fil., 93; D. 

 slenmrtera, Kze, Bot. Zeit., 4848, 216. 



Rhizome wide-ci'eeping, the scales linear, squarrose, pale-brown. Stipes 

 5 — 10 c.M. long, grey-stramineous, naked. Fronds deltoid, 4-pinnatifid, 15 — 25 

 c.M. long, acuminate. Pinnae short-stalked, lanceolate, lowest largest, deltoid- 

 lanceolate, 5 — 5 c.M. broad, rachis winged. Pinnulae close, lanceolate. Ulti- 

 mate segments (teeth) cuneate-oblong when barren, spathulate when fertile 

 and forming a narrow wing on each side of the sorus. Texture ± coriace- 

 ous ; surfaces naked. Sori terminal on the lobe-like teeth ; indusium rather 

 deeper than broad, urceolate, with mostly a horn beyond on both sides. 



Malaya. 



(18) D. l¥agneriana, Copel., Polypod. Philipp., 54. 



Rhizome stout, scandent, the scales dense, lanceolate, acuminate, adpres- 

 sed, brown. Stipes stout, scaly near the base. Fronds 20 — 25 c.M. long, 

 10 — 15 c.M. broad, 3-pinnalifid at tHe base only, the fertile narrower than 

 the sterile ones. Lowest pinnae not larger than the succeeding, with a 

 few, distinct, deeply toothed, equal pinnulae at the base of each, ' followed by 

 broadly linear, acutely toothed segments. Texture coriaceous; rachis winged, 

 naked like the surfaces. ' Sori usually a little longer than broad, rarely reach- 

 ing the margin. 



Mindanao. 



