PTERIDE.E — PTERIS. lOl 



Merrill 3347; Masbate and Bataan, Baranda; Capiz, Copeland 5G; Davao, 

 Copelatid 375. 



India to Polynesia. 



(7) P. semipinnata L. Stipe about 30 cm. high, firm, erect, naked, 

 bright cliestnut brown; frond about 30 cm. high, half as broad, ovate-lance- 

 olate, the upper part cut down to the rachis into close entire lobes, the lower 

 two-thirds with 6 to 8 pairs of opposite distantlj'-placed pinnsE; pinnae with 

 long, entire points, and a broad entire wing on the upper side, but the 

 lower side with several linear pinnules, sterile margins finely serrate, 

 subcoriaceous, glabrous; veins simple or once forked; indusium mem- 

 branous. 



Luzon, Cuming 2.j8. Merrill's No. 3790, from the Lamao Forest Reserve, 

 differs only in that all the divisions are shorter, and proportionally broader. 

 India to Japan and Borneo. 



(8) P. distans J. Sm. Stipe about 15 cm. high, slender, erect, naked, 

 pale; frond about 30 cm. high, 10 to 15 cm. broad, upper part long, linear, 

 sharply serrate, below this 12 to 20 pairs of close short lobes, the lower two- 

 thirds of the frond with G to 9 pairs of opposite, distant, linear-pointed 

 pinnae; each with a few spreading pinnules at its base, coriaceous; rachis 

 scabrous; veins conspicuous, simple or once forked; sterile lobes finely 

 spinulose-serrate; indusium membranous. 



Luzon, Ciiniing 410. 



(9) P. heteromorpha Fee. Stipe 15 to 30 cm. high, naked, erect, pale; 

 frond 30 to 45 cm. high, half as broad, ovate-lanceolate, the upper part with 

 a long entire terminal point, below which it is sinuate and furnished with 

 a few short, linear lobes; pinnae in several opposite pairs, the lowest of 

 which are 1 dm. apart, the upper ones entire or slightly compound at the 

 base, the lowest pair cut down nearly to the rachis, with several spreading 

 linear pinnules on each side, subcoriaceous, glabrovis, the margins slightly 

 crisped; veins conspicuous, usuallj' once forked; indusium narrow, mem- 

 branous. 



Luzon, Citmiiig 409; Rizal and Manila, Loher. 



Celebes. 



P. dispar Kunze is a fern differing from P. semipinnata only in that 

 the upper side of the pinnae as well as the lower, is more or less pinnate; 

 they are hardly specifically distinct. 



Isabela-Luzon, Warburg 11013. 



China and Japan. 



(10) P. quadriaurita lletz. Stipe 30 to 00 cm. high, strong, erect, 

 naked or slightly scabrous, stramineous or Inownish; frond varying from 

 15 to 100 cm. in height, 10 to 30 cm. or more broad, with a terminal, central 

 pinna cut down nearly to the rachis into numerous, close, parallel linear- 

 oblong lobes 1 to 2 cm. long, 4 to G mm. broad, the sterile ones entire or 

 slightly serrate; lateral pinnae several pairs, 15 to 30 cm. long, 2 to 5 cm. 

 broad, the lowest ones usually again compound, having 1 or 2 similar but 

 smaller ijininilcs branching from tlie base on tlie lower side, all cleft to the 

 rachis into close, erecto-patent, entire, linear or linear-oblong segiiKMits; 



