40 POLYPODIACE^E OF THE PHILIPPINE ISLANDS. 



(1) P. appendiculata (Willd.) Blume. Rhizome short, creeping; stipe 

 of sterile frond 10 to 20 cm. high, of fertile 20 to 40 cm., erect, scaly 

 throughout, as is often the rachis; sterile frond 40 to 70 cm. long, apex 

 usually rooting; pinnae about 5 cm. long in the middle of the frond, 

 horizontal, lanceolate, acute, simply or doublj' serrate with the tip of a 

 vein excurrent from the sinus between each two main teeth, abruptly 

 contracted at the base, sometimes auricled on the upper side, papyraceous, 

 glabrous; fertile frond shorter and narrower, Avith obtuse pinnae, the 

 lower ones stalked; pinnae often rolled up in fruit and appearing to be 

 entirely covered by the sori. 



Mount Arayat, Loher; Benguet, Topping 340, Elmer 6457 ; Mount Mari- 

 veles, Warburg 12508, Copeland 245. 

 India and Malaya, Hongkong. 



(2) P. stenosemioides Baker sub Achrosticho. Stipes high, chestnut, 

 with a few lanceolate scales toward the base; sterile frond 30 to 45 cm. 

 high, 20 cm. broad, bipinnatifid, submembranaceous, glabrous except for 

 a few deciduous hyaline paleae on the margin; pinnae sessile, 10 cm. long, 

 3 cm. broad, numerous, pinnatifid to a broadly winged costa into oblong, 

 obtuse segments 5 mm. broad; fertile frond similar, but with a longer 

 stipe, nearly GO cm., and smaller and more lax pinnae. 



Rizal, Loher. 

 Sarawak. 



(3) P. apiifolia Hooker. Rhizome short, stout, erect; stipe of sterile 

 frond 2 to 7 cm. high, of fertile 15 to 20 cm. the former densely, the 

 latter very sparsely fibrillose; sterile frond 8 to 15 cm. high, 4 to 12 

 cm. broad, bi- or tripinnate; pinnae close, rhomboidal, they or their 

 divisions more dissected at the base than in the part above, where they 

 are broader, only the lowest pair ever with pinnate pinnules, rather 

 obtuse, with entire or dentate margin, herbaceous, glabrous beneath except 

 on the midribs; ultimate divisions of the fertile frond reduced to isolated 

 orbicular or globose, beadlike bodies 1 to 2 mm. in diameter. 



Luzon, Cuming 26, Lobb; Rizal, Loher; Lamao Forest Reserve, Merrill 

 3129, Barnes F. B. 73, Copeland; Masbate and Bataan Id., Baranda. 



(4) P. art icu lata .J. Sm. Stipe 30 cm. high, firm, erect, nearly naked; 

 sterile frond 30 to 80 cm. high, 20 to 30 cm. broad, bipinnate; pinnae 

 articulate to the rachis, narrowly lanceolate; pinnules unequal-sided, 

 oblong, obtuse, crenate, auricled on the upper side, subcoriaceous, glabrous; 

 pinnae of fertile frond 10 cm. long, linear-cylindrical, auricled on the 

 upper side. 



Leyte, Cuming 296. 

 Celebes across Melanesia. 



(8) STENOSEMIA Presl. 



Sterile frond ample, fertile reduced to linear segments, both broadly 

 trifoliate in plan; basiscopic side of lower pinnae strongly developed; 

 veinlets anastomosing to form areolae along the midribs and main veins, 

 free toward the margin, without included veinlets; sori eventually covering 

 the dorsal or both surfaces. Indusium none. 



