IV. HYJWLErVOF'HYLL.A^CE^^E. 



S. HYMEIVOPHYLLtJM, Smith. 



% 1. EUHYMENOPHYLLUM. 



(1) H. discosum, Christ. 



Omit this, it is a form of H. paniculiflorum Pr. 



(la) H. angulosuiu, Christ, in Philipp. Journ., 111°, 269. 



Rhizome filiform, creeping, caespitose, black, naked like the whole 

 plant. Stipes straight, slender, ebeneous, unwinged, l'/2 — 3 cm. long. 

 Barren fronds subflabellate, ± 3 cm. each way, 3-pinnatiM at the base, 

 the upper part 2-pinnatifid, the main rachis black, narrowly winged in 

 the upper part; pinnae 8 — 4 on each side, cuneate-flabellate, the lowest 

 6-partite, the higher 3-partite; ultimate laciniae + 4 mm. long, + 1% 

 mm. broad, linear, obtuse. Fertile fronds ovate-oblong, narrowed at the 

 base, + T'/i cm. long, + 3 cm. broad, sub-8-piilnatifld ; pinnae in + 7 

 pairs, soriferous towards the apes. Texture thin; colour pale-brown- 

 green; veins black. Sori terminal on the laciniae, roundly ovate; valves 

 of the indusium crenate-denticulate. 



Mindoro. 



(3) H. exiiniiini, Use. 



Also in Luzon, Mindoro, Negros. 



(3a) H. penangianuiii. Matl. 4* CJhrist, in Journ. of Linn. Soc, 

 Bot., XXXIX, 214. 



Rhizome filiform, creeping, short-tomentose. Stipes scattered but 

 subcaespitose, black, filiform, rigidly pubescent, + 2 cm. long. Fronds 

 ovate-oblong, narrowed at the base, up to 7 cm. long, 2 cm. broad, the 

 rachis winged in the upper half Pinnae alternate, erecto-patent, 6 — 8 on 

 each side, the lower distant, the largest to 2 cm. long, 9 mm. broad, 



