8. HYMENOPHYLLUM. § 1. EUHYMENOPHYLLUM. 69 



c.M. long, 27,-10 c.M. broad, ovate, acuminate; main rachis winged above. 

 Pinnae rather imbricating; the lower ones distant, broadly rhomboidal-acumi- 

 nate, subflabellate, el-ecto-patent or subspreading, divided down to a broadly 

 winged rachis into several cuneate-based pinnulae which are forked or pinna- 

 tifid with several simple or forked to pinnatifld segments on each side. Tex- 

 ture flaccid; surfaces somewhat glossy. Sori 6—20 to a pinna, terminal on 

 the segments; indusium divided more than Vr^^Y down, the valves entire, 

 rounded, the base cuneate; receptacle columnar-oblong. — Ultimate segments 

 not emarginate at the apex, entire. 



? Sumatra, FNew Guinea, Batjan; Australia, New Zealand, Samoa. 



* (6) H. australe, waid., Christ, Farnkr. d. Erde, 17; Diels, in 

 Engl. & Prantl, Nat. Pfl.Pam., I*, fig. 74, C; H. jamnicum, Spr., Rac, 

 Flor. Btz., I, 17; V. D. B., Hymen. Jav., tab. XL; H. micranthum, V.D.B.,H. 

 erosum, BL, H. fimhriatum, J. Sm., V. D. B., 1. c, tab. XLI, XLIII & XLIV; 

 — var. atrovirens; //. atrovirem, Colen., Tasm. Journ., II, 186; H . tasmanicwn, 

 V. D. B., Ned. Kruidk. Arch., IV, 399. 



Rhizome wide-creeping, slender, naked or nearly so. Stipes 3 — 7 c.M. 

 long, erect, margined with a broad, crisped wing, except at the base. Fronds 

 5 — 20 c.M. long, 3 — 10 c.M. broad, ovate to deltoid, 3 — 4-pinnatifid, main & 

 secondary rachises provided with a + broad wing. Lower pinnae oblong or 

 deltoid-' ovate , erecto-patent. Pinnulae oblong, cut down to a crisped wing 

 into simple or bifid segments, which are naked, entire, crisped, + 1 m.M. 

 broad. Sori + 6 — 20 to a pinna, terminal on the ultimate segments; indu- 

 sium to 1 m.M. broad, divided down nearly to the base, the valves roundish 

 or oblong, with the outer edge denticulate; receptacle + filiform, included. 



Vap. atrovirens: Segments nearly plane. 



Malaya; North. India, Australia, New Zealand, Antarct. Isles. 



* (7) H. demissum, »*»., Hk. Bk., Syn. Fil., 61; H.productum,Kze, 

 Rac, Flor. Btz., I, 17; V. D. B., Hymen. Jav., tab. XLV. 



Rhizome filiform, creeping, naked. Stipes S— 15 c.M. long, erect, firm, 

 wingless or nari'owly winged above. Fronds ovate-triangular to elongate, 

 6—30 c.M. long, 3'/2— 10 c.M. broad, 3- or 4-pinnatifid; main rachis 

 ■s lightly winged. Lower pinnae S'/j— 7Vj c.M. long, triangular-rhomboidal, 

 divided down very nearly to the rachis into numerous pinnulae on each side, 

 which are again divided down nearly to the rachis into pinnatifid segments. 

 Ultimate lobes Vl^—'o m.M. long, ± 1 V2 m.M. broad. Sori very numerous, 



