ASPLEXIEJE DIPLAZIUM. 75 



long, the lowest a little shorter but longer stalked, linear, acute, pinnatifid 

 half way down to the costa, with equilateral, acute base, glabrous, her- 

 baceous, bright green above, pale beneath; rachis densely beset with short 

 patent hairs; veinlets all bearing sori. 

 Bohol, Cuming 349. 



(13) D. brachypodum (Baker). Stipes tufted, slender, about 2 cm. 

 high, dark green, with a few minute linear scales; frond oblanceolate, 

 acuminate, 10 to 15 cm. long, 2.5 cm. broad, bipinnate; lower pinnae 

 lanceolate-deltoid, 6 mm. broad, distinctly stalked, square on upper side, 

 cuneate-truncate on lower, cut down to rachis below, many lower distant, 

 reduced; lowest anterior pinnule much largest, cuneate-oblong, dentate, 



2 to 3 mm. broad, the others lanceolate, entire; texture moderately firm, 

 surfaces dull green; rachis naked; veins pinnate in lower lobes; sori 

 medial, linear. 



Luzon, Cuming 56. 



(14) D. cyatheaefolium (Bory) Presl. Caudex erect, subarborescent ; 

 stipe firm, erect, dark brown, nearly naked; frond 45 to 60 cm. long, 

 30 to 45 cm. broad, lower pinnse 25 cm. long, 8 cm. broad, cut down to 

 their rachis in the lower two-thirds into numerous pinnules on each side, 

 the lower ones 4 cm. long, 1 cm. broad, the upper ones inciso-crenate, the 

 lower ones cut down one-third of the distance to the costa into oblong, 

 falcate, sharply-toothed lobes, herbaceous; veins pinnate, with 3 or 4 

 veinlets on each side in the lower lobes; sori falling considerably short 

 of the edge. 



Luzon, Cuming 158. 



(15) D. latifolium (Don). Caudex erect, subarborescent; stipes tufted, 

 strong, erect, 30 cm. or more high, livid, smooth, clothed toward the 

 base with linear crisped, dark brown scales; frond 1 m. long, 30 to 45 cm. 

 broad, subdeltoid, with about 12 pinnae on each side, the largest 30 cm. 

 long, 10 cm. broad; pinnules numerous, the largest 5 cm. long, 2 cm. 

 broad at the base, acuminate, slightly toothed, abruptly truncate at the 

 base on both sides, subcoriaceous ; veins about 6 in a group; sori linear, 

 the lowest often 4 mm. long. 



Philippines. 



Ceylon to Celebes and southern China. 



(16) D. vestitum Presl Epim. Bot., p. 87. Rhizome erect; stipe stout, 

 erect, brownish, tomentose, sometimes muricate; frond 60 to 90 cm. long, 

 25 to 45 cm. broad, with numerous pinnse on each side, the lower ones 

 25 cm. long, 10 cm. broad, with numerous distinct subsessile pinnules, 

 which are 5 cm. long, 25 mm. broad, blunt, bluntly lobed to a depth of 



3 to 6 mm., base narrowed suddenly or even cordate, thin-herbaceous ; rachis 

 like the stipe; veins pinnate in the lobes, with 4 to 5 veinlets on each 

 side; lower sori 6 to 8 mm. long, not reaching the margin. 



Samar, Cuming 336. 



Luzon specimens, Merrill 2667 from Rizal, Copelcmd s. n., from Mount 

 Mariveles, resemble this in their pubescent rachises, but have acute pinnules, 

 and are very large, reaching a height of 3 m. 



