114 POLYPODIACE.E OF THE PHILIPPINE ISLANDS. 



matted with appressed tomentum; main veins distinct to the margin; sori 

 rather prominent, in close rows of 4 to 6 between the main veins. 



Mount Mariveles, Loher. 



India to Japan and Malaya. 



(5) N. sphaerostichus (Mett.). Rhizome woody, wide-creeping, clothed 

 with ovate, acuminate, brown, crisped scales; stipe 6 to 10 cm. high, 

 firm, erect; fronds 10 to 15 cm. high, oblong-lanceolate, acuminate, base 

 narrowed abruptly, coriaceous, upper surface naked, lower sparsely tomen- 

 tose; main veins distinct to the margin; sori in several series between 

 the transverse veinlets, confluent, covering the whole lower surface. 



Luzon, Cuming 127. 

 Celebes. 



(6) N. varius Kaulf. Rhizome wide-creeping, clothed with scales whose 

 long ferruginous or whitish tips are squarrose near the growing points, 

 appressed farther back, then deciduous leaving the elliptical peltate bases, 

 black in the center; stipes 2 to 5 cm. high, glabrescent; fronds usually 

 somewhat dimorphous, the fertile 15 to 25 cm. high, 1 cm. more or less 

 broad, attenuate to both ends but more abruptly to the base, coriaceous, 

 glabrous or nearly so on the upper surface, the lower very sparsely 

 pubescent, sterile fronds usually shorter and relatively broader; veins 

 invisible; sori distinct but contiguous, covering rather more than the 

 upper half of the frond. 



Luzon, Meyen, Chamisso, Cuming 17, 67, 88, 135, 240; Benguet, Barnes 

 Forestry Bureau 962, Topping 343; Mount Arayat, Merrill 3822; Corregi- 

 dor, Cuming 286; Romblon, Copeland 301; Culion, Merrill 545; Samar, 

 Cuming 323; Davao, Copeland 311, 038. 



Java to China and Mariannes. 



N. varius is construed here as including N. elongatus Bl., N. pertiisus 

 Spreng., A^. albicans Bl.. X. Blumcanus Kunze, and A. caudatus Kaulf. 



(7) N. adnascens (Sw.) Kaulf. Rhizome wide-creeping, clothed with 

 scales whose slender tips are deciduous; .stipes 1 to 4 cm. high, erect, 

 puberulous; fronds dimorphous, the sterile rarely more than 6 cm. high, 

 10 to 15 mm. broad, broadest near the rounded apex, contracted to the stipe, 

 the fertile usually 10 to 15 cm. high, 6 to 10 mm. broad, broadest below the 



' middle, both coriaceous, both surfaces smooth or sparsely pubescent ; 

 veins invisible; sori distinct but contiguous, occupying more or less than 

 the upper half of tlie frond, with dense pubescence between them. 



Manila, Loher; Tayabas, Warburg; Mount Arayat, Merrill 3821; Capiz, 

 Panay, Copeland 102, 103; Davao, Copeland 554, 626, 656; a common epi- 

 phyte over beaches. 

 Africa to Fiji. 



(8) N. nummulariaefolius (Sw.) J. Sm, Rhizome very slender, wide- 

 creeping, clothed with spreading bright-ferruginous fibrillose scales; stipes 

 scaly, of the fertile frond erect, 5 to 15 mm. high, of the sterile much 

 shorter, horizontal; fronds dimorphous, the sterile 10 to 15 mm. long, 

 orbicular or elliptical, with or M'ithout a basal sinus, upper surface glabrous 

 or sparsely stellate, lower with a very dense white or ferruginous tomentum, 



