26 rOLYPODIACE.^^: OF THE PHILIPPINE ISLANDS. 



'coriaceous, villous on both surfaces; veinlets immersed; sori copiovis, one 

 to each ultimate segment. 



Luzon, Cuming G3 ; Albay, Baranda. 



(28) N. setigerum (Bl.) Baker. Rhizome creeping; stipe 30 to 50 cm. 

 high, scaly at the base, naked in the middle, villous at the top, stramin- 

 eous; frond 40 to 100 cm. Iiigh ; lowest pinn» the largest, 20 to ."30 cm. 

 long, half as broad; pinnules close, linear-hmceolate, reaching a length 

 of 10 cm. their segments pinnatifid more than half way to the midrib, 

 herbaceous, glabrous or sparingly hirsute; sori minute, numerous; indu- 

 sium fugacious. 



Cagayan-Luzon, Warburg 12207; Benguet, Topping 178; Rizal, Guer- 

 rero 1 . 



India across Polj'nesia. 



(29) N. divisum Hooker. Stipes 60 to 100 cm. high, brownish, glabres- 

 cent; fronds 2 to 3 ni. high, spreading; lower pinnse 30 to 50 cm. long, 

 20 to 25 cm. broad ; pinnules lanceolate, acuminate, their rachis very 

 slightly winged, their rather obtuse segments cut down over half way to 

 the midrib into sharp teeth or toothed lobes, papyraceous, glabrovis, deep 

 green; sori nearer the midrib than the margin, usually one to each 

 tooth or lobe, indusiate. 



Mount Apo, CopeUind 1138. 

 India, Bourbon, Java. 



(30) N. ornatum (Wall.) Baker. Rhizome erect; stipe densely chaffy 

 at the base and more or less so throughout, 50 to 100 cm. higli; fronds 

 1 m. high and upward, ovate, at least tripinnate, exceedingly variable, 

 villous beneath, herbaceous; sori often sheltered by the incurved margin, 

 exindusiate. This is rather doubtfully distinct from N. setigerum. 



Luzon, Cuming 1, 75, 412; Rizal, Loiter; Davao, DeVore and Hoover 

 360, 361, Copeland 611. 

 India to Celebes. 



(31) N. rugulosum (Labill.). Rhizome wide-creeping, rather hairy 

 than scaly; stipe 30 to 50 cm. high, puberulous and glandular; frond 30 

 to 120 cm. high, deltoid; lower pinnse the largest, themselves less broadly 

 deltoid, their pinnules with distinct, obtuse, more or less deeply crenate 

 segments I cm. long, 3 mm. broad, firm-papyraceous, viscid-puberulous, 

 very sparsely so above, pale green, especially beneath ; sori copious, or 

 one at the base of each tooth, on the upper side, exindusiate. This is 

 probably a form of X. punctatum Diels; but that name is invalidated under 

 the Berlin rules by Acrostiehum punctatum L., and under the Kew rules 

 by Sephrodium punctatum Parish. Strikingly like Hypolepis. 



Baguio, Topping 252. 



All warm countries except Africa. 



(32) N. megaphyllum Baker. An enormeous fern, several meters high; 

 stipe 15 mm. or more thick, rough, clothed with appressed, subulate scales, 

 as is the rachis; frond ample, quadripinnate; pinnae 75 cm. long, 15 cm. 

 broad, stalked, acuminate; pinnules almost sessile, remote, alternate, ovate- 

 oblong; pinnules of the third order 3 cm. long, almost sessile, broadly 



