132 POLYPODIACPL^ OF THE PHILIPPINE ISLANDS. 



(66) P. caudiforme Blume. Rhizome wide-creeping, clothed with ovate- 

 lanceolate, scarious-ferruginous scales; stipe 10 to 20 cm. high, firm, 

 glabrous; fi'ond 10 to 20 cm. high, the fertile lanceolate, the sterile ovate, 

 long-acuminate, entire or crenate, rounded or acute at the base, coriaceous, 

 glabrous; main veins conspicuous, reaching the margin, veinlets invisible; 

 sori large, globose or elongate, as wide as the space between the main 

 veins, rarely confluent; epiphytic. 



Mount Apo, 1,800 m., Copeland, 1055, 1106. 

 !Malaya and Polynesia. 



(67) P. vulcanicum Blume. Rhizome creeping, clothed with ovate, 

 brown scales ; stipe of the sterile frond 3 to 8 cm. high, of the fertile 8 

 to 20 cm., rigid, glabrous; sterile frond 3.5 to 6 cm. high, ovate, obtuse, 

 rounded below, entire, coriaceous, glabrous; fertile frond 5 to 12 cm. high, 

 ovate-lanceolate, obtuse, acute at base; main veins conspicuous, falling 

 short of margin, or barely reaching it, veinlets invisible; sori globose, 

 mostly confluent in rows from the costa to the margin, so large that they 

 touch across the main veins; terrestrial. 



Mount Apo, above 2,100 m., DeVore and Hoover 337, Copeland 1048. 

 Sunda to Celebes, highest mountains. 



(68) P. Elmeri Copeland. Rhizome creeping, stout, clothed with ovate, 

 acuminate scales 6 mm. long, with peltate, black-centered bases; stipes 

 stout, dark, glabrous, that of the sterile frond 3 to 6 em. high, of the 

 fertile 15 to 20 cm.; sterile frond ovate-triangular, about 10 cm. high, 6 to 

 8 cm. broad, obtuse, entire or subrepand, abruptly truncate at base, 

 glabrous, very rigidly coriaceous; main veins conspicuous, reaching the 

 margin, veinlets invisible; fertile frond 10 cm. high, 4 cm. broad, acute, 

 subentire, cuneate at base, coriaceous; sori uninterrupted, reaching from 

 the costa to tlie margin, not quite filling the space between the main veins; 

 epiphytic. 



Mount Santo Tomas, Benguet, Elmer 6547. 



(69) P. ellipticum Thunberg. Rhizome creeping, woody, bearing small, 

 lanceolate, brown scales; stipe 30 to 60 cm. high, firm, naked; frond 30 

 to 50 cm. high, 15 to 30 cm. broad, pinnate below, rachis winged above; 

 pinnae or segments 7 to 11 on each side, about 20 cm. long, linear-lanceolate, 

 acute, entire, herbaceous, glabrous; venation conspicuous, main veins 

 zigzag, not reaching the margin, areolae large, irregular, mostly with 

 single free veinlets; sori linear, oblique, touching the midrib but not 

 the margin; terrestrial. Includes Selliguea pothifolia J. Sm. 



Luzon, Citniiny 53; Benguet. Elmer 5876. Barnes 903; Rizal. Loher ; 

 Mount Mariveles, Loher, Merrill 3116, Copeland 220; Catanduanes, Bar- 

 ,anda; Samar, Cuming; Davao, Copeland 1256. 

 India to Japan and Queensland. 



§ Myrmecophila. 



(70) P. sinuosum Wallich. Rhizome wide-creeping, tubular, 1 to 3 

 cm. in diameter, covered with roundish peltate scales with black center 

 and scarious margin; stipes brown, erect, glabrous, of sterile frond about 

 4 cm. high, of fertile about 6 cm.; sterile frond about 10 cm. high, 1.5 to 



