62 16. HYMENOPHYLLUM. 



siiles ; iiivol. small, divided down nearly to the base, denticulate at the apex. — 

 Hk\ Sp, Fil. \,p. 110. Sphaerocionium glaiiduliferum, Presl. 



Hab. New Zealand. — By their hairy rachis, thia species and H. exsertum form a 

 link between the glabrous and truly hirsute species. 



27. H. dilatatum, Swartz ; st. 2-4 in. 1., erect, wiry, slightly winged above ; 

 /?•. 6-12 in. 1., 4-6 in. br., ovate-lanceolate, tripinnatifid ; main rachis winged 

 throughout, the wing quite flat ; lower jntince rhomboidal-lanceolate, divided 

 down nearly to the rachis, the lower pinnl. again pinnatifid ; sori 2-12 to a 

 pinna, terminal or axillary on the segments on both sides, divided about 

 halfway down ; valves rounded, entire, clusters often exserted. — Hk. Sj). 1. 

 p. 10-4. HI. (£• Gr. Ic. Fil. t. 60. H. formosum, Bracken. H. Junghuhnii & 

 eximium, V. D. B. 



Hab. New Zealand, Java, Tahiti, Samoa, Aneiteum, Fiji and other Polynesian 

 Islands. — Closely allied to H. fuci forme, but different in the involucre. 



28. ^. fuciforme, Swartz ; st. strong, erect, 4-8 in. 1., narrowly winged above ; 

 fr. 12-24 in. 1., 4-6 in. br., triangular-lanceolate, tripinnatifid ; main rachis 

 winged throughout ; lower pinnce rhomboidal-lanceolate, cut down nearly to the 

 rachis into numerous distant pnnnl. on both sides, the lowest of which are trian- 

 gular in outline and again pinnatifid, with 2-3 forked lower segm. ; sori numerous, 

 very small, placed principally in the axils of the segments ; valves divided down 

 nearl}' to the base, rounded, entire ; recept. and even the cluster of capsules often 

 exserted.— iZi;. Sp. 1. p. 103. t. 36. D. 



Hab. South Chili and Juan Fernandez. 



29. H. 2}ulcherrimum, Colenso ; st. 3-4 in. 1., wiry, erect, wingel down to the 

 base ; /;•. 6-12 in. 1., 4-6 in. br., ovate-triangular, 3- or 4- pinnatifid ; main rachis 

 slightly winged throughout ; loiver piniice 2-3 in. 1., lanceolate-rhomboidal, the 

 secondary rachis flexuose, slightly waved, the pinnae with several distant 

 pinnl. on both sides, the segm. of which are again pinnatifid with cuneate flabel- 

 lately pinnatifid lower divisions ; sori numerous, axillary and terminal on the 

 segments on both sides ; invol. orbicular, divided down nearly to the base ; valves 

 enth-Q.—Uk. Sp. \.p. 103. t. 37. A. Hk.fil. Fl. N. Z. 232. t. 74. 



Hab. New Zealand. — Species 20 to 29 much resemble one another in habit, and all 

 have ample tripinnatifid firm glossy fronds, with comparatively broad erecto-patent 

 segments. 



30. H. Zollingerianum, Kunze ; st. 2-4 in. 1., wiry, deciduously hairy ;//•. 4-8 

 in. 1., l|-2 in. br., lanceolate-acuminate, with a flaccid apex, tripinnatifid ; pinnce 

 rather distant, the lower ones ovate-rhomboidal, cut down to a rather broad 

 centre ; /»/««/. close, the lower ones again deeply pinnatifid ; main rachis narrowly 

 winged and often slightly hairy, a single central vein in each segment, the lower 

 part of which is conspicuously winged on both sides ; sori 2 to 8 to a pinnule, 

 large, terminal or axillary ; invol. divided about halfway down, the mouth 

 roundish, entire. — V. D. B. Hyvien. Jav. t. 50. 



Hab. Java. — By its deciduously hairy rachis, this approaches the next section. The 

 habit is something like that of H. polyanlkos, with an elongated flaccid apex, and the 

 curiously winged veins are very peculiar. 



'"'** Fronds more or less ciliated and hahy upon the surface. — Sp. 31-51. 



31. H. borneense, Hk. MSS. ; st. about 1 in. 1., very slender ; fr. square or 

 fan-shaped in general outline, -^f in. 1., ^ in. br., divided dawn like a fan nearly 



