128 I'()LV1'(JI)IACE.T] OF THE rillLirriXK ISLANIIS. 



glal)rous; venation evident, main veins lunnin"; very nearly to the margin, 

 with regular arclied cross veins; sori small, in rows parallel to the cross 

 veins and scattered. 



Davao, epiphytic forming poor nests, Copeland 1295. 



Malaya. 



(49) P. anomalum Christ, Bull. Herb. Boiss. 6(1898) :201. Rhizome 

 creeping, clothed with ovate-subulate, crisped, brown scales; stipe 3 to 4 

 cm. high, stramineous, glabrous; frond 20 cm. high, 15 cm. broad, irregular 

 in form, attenuate below, undulate-crenate, or pinnatifid into lobes of 

 irregular form 3 cm. long, the apex of the frond irregularly dentate, 

 membranous, pale green, especially below, glabrous; main veins distinct, 

 areolie about 4 series along the costa, large; sori large, round, irregularly 

 pluriseriate. 



Mount Data, 2,250 m., Loher. 



(50) P. pentaphyllum Baker, Ann. of Bot. 5(1891) :478. Rhizome 

 wide-creeping, woody, 3 mm. in diameter, sparsely clothed with small 

 laceolate-acuminate pales; stipe naked, 2 to 3 cm. high; frond 30 cm. 

 or more high, simple in the lower half, forming a mere wing to the 

 rachis, deeply pinnatifid in the middle into distant, linear-lanceolate lobes 

 1 cm. broad, membranous, green glabrous; veins fine, copious; sori minute, 

 scattered. 



Philippines, Wallis; Castillo, Ararat, and Los Baiios, Loher. 



(51) P. insigne Blume. Rhizome slender, dull brown; stipe 10 to 15 

 cm. high, often winged throughout, glabrous; frond 10 to 20 cm. high, 

 two-thirds as broad, with an entire, acute, lanceolate terminal lobe one- 

 third the height of the frond and 15 mm. broad, and 2 to 4 similar lobes 

 on each side, separated to within 1 cm. of the rachis, firm-herbaceous, 

 glabrous; venation fine, irregular, visible; sori small, irregularly scattered. 



Luzon, Cuming 52, Brackenridge. 

 Malaya. 



(52) P. pteropus Blume. Rhizome wide-creeping, bearing blackish, 

 lanceolate-subulate scales; stipe 10 to 15 cm. high, naked or as a rule 

 scaly; frond 10 to 20 cm. high, up to 5 cm. broad, rarely simple, usually 

 ternate or pinnatifid, with a large, broad, acute, repand terminal lobe and 

 similar but smaller lateral ones, thin but firm, dark green, glabrous; main 

 veins falling short of the margin, as in P. punctatum; sori small, scattered. 



Samar, Cuming 324. 



India and ^lalaya to Formosa. 



(53) P. incurvatum Blume. Rhizome creeping, clothed with ovate, 

 whitish, membranous, appressed scales; stipe of sterile frond 10 to 15 

 cm. high, of fertile 20 to 40 cm. high, erect, firm, glabrous; fronds simple, 

 ternate or pinnatifid, or the fertile even pinnate; the sterile 10 to 20 cm. 

 long, mostly broadly triangular, the lobes broad, entire or repand, acute, 

 coriaceous, glabrous ; fertile frond larger, with acuminate lobes about 1 cm. 

 broad; main veins reaching the margin, veinlets invisible; sori large, 

 round, one in each areola, in a single row between midrib and margin, 

 partly immersed. 



