90 8. HYMENOPHYLLUM. § 1. EUHYMENOPHYLLUM. 



winged, naked; veins rather stout, not reaching the apices of the segments. 

 Sori on abbreviated segments; indusium subcylindrical, conical at the 

 base, broadly winged, 2-valved '3 -way down, the valves triangular-ovate, 

 acute; receptacle exserted, incurved. 



(14; H. Blumeanum, Sp?-. 



This species is construed as including two distinct forms : H. Blumeanum 

 S23r. and H. pycnocarpum V. D. B. 



(14a) H. Bill mean II III, Spf.s C. Chr., Ind. Fil. ; — var. 

 novoguineensis. Est., in Fed., Rep., V, 371. 



Sori on non-abbreviated lacinulae. 



War. iiovoguineensitj : Fronds 3 — 4-pinnatifld, to 70 cm. or 

 more long by + 6 — 10 cm. broad; pinnae often conspicuously elongated, 

 to more than 30 cm. long, segments deeply emarginate at the apex; 

 indusium more acute. — Neio Guinea. 



{lib) ifl. |>yciiocar|iiim, r. ». «.,• C. Chr., Ind. Fil., Suppl. ; 

 H. subdeinissuiii, Christ, in Bull. Herb. Boiss., VI, 140. 

 Sori on abbreviated lacinulae. 



(14c) See No 7. 



(15) H. Treubii, Racs — var. novoguineensis, Rst., in Fed., 

 Rep., XII, 526. 



Forma typica. — Also in Amhoina. 



far. iiovoguiiieeiisis: Fronds 6 — 7 cm. long, more copiously 

 laciniated, the laciniae shorter. — New Guinea. 



(17; H. forinosiiin, JBraclt.} H. dilatatum,Sio.; Schk., Krypt. 

 Gew., I, tab. 185. 



.17fl) H. aiauileriaiium. K*/., in Fed., Rep., X, 323. 



Rhizome creeping, filiform, sparingly pilose. Stipes to 7 cm. long, 

 firm, livid, straight or subflexuose, winged throughout, naked. Fronds 

 ovate, 3-pinnate, to + 20 cm. long, 6 — 7 cm. broad, long-acuminate; 

 rachises winged, the wings crisped. Pinnae sessile, erecto-patent, oval, 

 imbricate, to 5 cm. long, 1'/^ — 2 cm. broad, obtuse to acuminate; upper 



