86 POLYPODIACE.E OF THE PHILIPPINE ISLANDS. 



natifid; texture herbaceous; veins fine, deeply channeled; sori short, linear- 

 oblong, irregular. 



Luzon, Cuming 43, Chamisso; southern Luzon, Baranda; Montalban, 

 Loher; Batangas, Marave; Bataan Province, Barnes 153; Mindoro, Merrill 

 1814; Mindanao, Xee. 



India, across Polynesia. 



This and the preceding three species are decidedly too near together. 

 Young plants of A. laserpitiifolium, and plants in poor situations, bear 

 fronds indistinguishable from those of the less dissected species. Thus 

 plants from Davao that would very probably have become typical A. laser- 

 pitiifolium bear fronds smaller and less dissected than typical A. cuneatum; 

 and the same is true of Elmer's 6538, from Benguet. 



(31) A. praemorsum Swartz. Stipes tufted, 10 to 20 cm. high, firm, 

 erect, wooly; frond 15 to 45 cm. long, 10 to 15 cm. broad, with 12 to 20 

 pinna? on each side, which are lanceolate-deltoid in general outline, 5 to 8 

 cm. long, 2 cm. broad, cut down throughout nearly or quite to their rachis 

 into linear-cuneate pinnules, which are sharply serrate on the outer edge; 

 texture coriaceous; rachis firm, erect, more or less fibrillose like the 

 stem; veins deep-channeled, flabellate; sori linear, radiant. 



Arayat, 800 m., Loher. 

 Most tropical countries. 



Specimens from Mount Apo, Copeland 1195, differ in that the pinnules 

 are ovate-cuneate, giving a very different appearance. 



Darea. 



(32) A. Belangeri Kunze. Stipes tufted on a very short, chaffy root- 

 stalk, erect, 15 to 30 cm. high, greenish, naked except near the base; 

 frond 30 to 40 cm. high, 10 to 12 cm. broad, with numerous horizontal 

 pinnae about 6 cm. long, 1.5 cm. deep, obtuse, the basiscopic side obliquely 

 truncate at the base, acroscopic somewhat auricled; cut down throughout 

 to a regularly winged rachis into linear, erecto-patent segments 1 mm. 

 broad separated by more than their breadth, the lowest of which are 

 once or twice forked; texture subcoriaceous ; color pale green; rachis 

 compressed; one vein and sorus to each segment, the latter marginal. 



Davao, Warburg 14133 and 14164, Copeland 1198. 



Sumatra to Amboyna. 



The Davao plants, to which this description is adapted, differ from the 

 typical in being broader, in the frequently more than once forked lower 

 segments, the chaffy base of the stipe, and thinner texture. 



(33) A. scan dens J. Sm. Mett. Stipes scattered on a stout scandent 

 rhizome, very short; frond 30 to 60 cm. long, 15 to 30 cm. broad, with 

 numerous horizontal pinnae, which are 10 to 15 cm. long, 4 cm. broad, cut 

 down to a distinctly winged rachis into numerous subdistant ovate-rhom- 

 boidal pinnules, which are cut down to a rachis throughout; lower segments 

 again pinnatifid; ultimate divisions narrowly linear; texture thinly herba- 

 ceous; rachis firm, erect; one vein in each division; sori solitary, marginal. 



Leyte, Cuming 297. 

 New Guinea. 



