82 POLYPODIACEJE OF THE PHILIPPINE ISLANDS. 



broad, narrowly lanceolate-oblong, with 12 to 20 horizontal pinnae on 

 each side, which are 3 to 4 cm. long, 1 cm. broad, bluntish or acute at 

 the point, more or less deeply inciso-crenate throughout, the two sides 

 unequal, the upper one at the base narrowed suddenly at about a right 

 angle, the lower one obliquely truncate; lower pinnae often deflexed; texture 

 herbaceous; rachis firm, grayish; veins simple or once forked; sori falling 

 short of both edge and midrib. 



Mountains of Panay, Steere. 



Tropics, everywhere. 



(16) A. Steerei Herrington. Stipe dark gray, 12 to 15 cm. high, firm, 

 with a few small, brown, scattered scales; frond 20 to 25 cm. long, 5 cm. 

 broad, oblong-lanceolate; pinnae 12 to 15 on each side, short petioled, 3 to 5 

 cm. long, 1 cm. broad, apex acute, margin coarsely crenate, unsymmetrical ; 

 upper side abrupt at the base with a more or less distinct large lobe; lower 

 side obliquely truncate; lower pinnae slightly deflexed; texture firm, herba- 

 ceous; surface dark green above, brownish below; veins distant, simple, or 

 once forked; sori 2 to 8 in a row on each side of the midrib, regular, falling 

 a little short of midrib and margin. 



Mount Majayjay, Luzon, Steere, in small clusters on tree trunks. 



(17) A. prionurus J. Sm. Stipes tufted, 15 to 25 cm. high, firm, erect, 

 slightly scaly below; frond 30 to 45 cm. long, 15 to 25 cm. broad, oblong, 

 with 9 to 18 pinnae on each side, which are 10 to 15 cm. long, rather 

 over 1 cm. broad, very acuminate, deeply and regularly toothed throughout, 

 the base rather unequal, more truncato-cuneate on the lower side, with 

 a short, distinct petiole on the lower ones; texture herbaceous; veins 

 usually simple, with sori on each reaching nearly to the edge. 



Philippines, Cumvng 197. 



Ferns collected by DeVore and Hoover, 348 and 377, from Mount Apo, 

 probably represent this species, but are too imperfect for certainty; they 

 seem equally near A. lineatum Swartz, indicating, as is suggested in 

 Synopsis Filicum, that the two species are not distinct. 



(18) A persicifolium J. Sm. Stipe and rachis gray, with a few 

 scattered minute gray scales; frond oblong-lanceolate, 60 to 90 cm. long, 

 often gemmiparous at apex; pinnae distant, ascending, 15 to 30 jugate, 

 subpetiolate, 10 to 12 cm. long, linear-ligulate-acuminate, 1 to 2 cm. broad, 

 distinctly inciso-crenate throughout, more cuneate on the lower than on 

 the upper side at the base, the lowest not reduced; texture thin but firm; 

 surfaces dark green, naked; veins erecto-patent, fine, forked, not close; 

 sori regular, parallel, 6 to 8 mm. long, reaching nearly to midrib and edge. 



Southern Luzon, Baranda. 



Formerly accredited to Hawaii, but incorrectly, according to Hillebrand, 

 Flora of Hawaiian Islands, p. 591. 



(19) A. griseum Copeland. (A. insigne Copeland in Perkin's Frag- 

 menta, not of Blume nor Liebm.) Rhizome short, stout, densely coated 

 with large, brown scales; stipe 40 to 50 cm. high, stout, dark green or 

 brown, slightly chaffy ; frond 30 cm. broad, more than 60 cm. high, pinnate ; 

 pinnae about 12 pairs, stipitate, about 20 cm. long by 3.5 deep, lanceolate, 

 acuminate, subserrate, tough-herbaceous, ash-green, somewhat unequal at 



