8. HYMENOPHYLLUM. § 1. EUHYMENOPHYLLUM. 93 



elongate-triangular, entire or minutely crenulate at the apex; receptacle 

 at length exserted, firm. 

 Baiu. 



(236: H. taliabense, v. A. v. n., in Bull, Btz., 1914, XVI, 18. 



Rhizome slender, creeping, hairy, soon naked. Stipes + 1 — 1'/, cm. 

 long, slender, terete, pale-brown-hairy, winged towards the frond. Fronds 

 linear-oblong or lanceolate-oblong, to + 7 cm. long and 3 cm. broad in 

 the fully developed plant, the main rachis winged. Pinnae erecto-patent, 

 oblong or linear-oblong, rather contiguous, pinnatifid, the higher simple 

 or forked, the largest to + 1 Vj cm. long and 1 cm. broad. Segments 

 contiguous, forked or the higher simple; ultimate segments linear, '/^ — '4 

 cm. long, 1 — 1 V2 mm. broad, entire, rounded at the apex. Rachis, costae 

 and veins hairy, the hairs pale-brown, rather long, crisped, those of the 

 main rachis rather crowded, of the veins often scattered; veins distinct.' 

 Sori axillary; indusium elongate, 2-valved '/j-way down, obconical and 

 narrowly winged in the lower half, hairy on the lower side at the base, 

 the hairs similar to those of the main rachis, the valves oblong, subacute 

 or rounded, entire; receptacle exserted. 



Taliabo. 



§ 2. LEPTOCIONIUM. 



(25) B. subOabellatuni, Ces. 



Also in Luzon. 



(26) H. edulentum, v. A. v. R. (not C. Chr.). 



Omit this name, it should be H. edentulum G. Chr. 



(26) H. edentulniii^ C. Chr., Ind. Fil. ; Leptodonium edentulum, 

 V. D. B., in Ned. Kruidk. Arch., V^ 148; L. edulentum, v. A. v. R. 

 (not V. D. B.). 



(26a) U. Foersiteri, Rst., in Fed., Rep., XII, 165. 



Rhizome creeping, fiUofrm, clothed with ferrugineous hairs. Stipes 

 2 — 3 cm. apart, 1 — 2 cm. long, hirsute, narrowly margined upward. Fronds 

 linear, ± 15 cm. long by l'/^ cm. or more broad, shortly acuminate, 



