58 IG. HYMENOPIIYLLUM. 



8. H. varum, R. Br. ; st. very slender, 1-3 in. 1. ;/r. flaccid, pendent, 2-6 in. 1. 

 by 1-2 in. br., linear-ol)lon^ or oblong, bipinnatifid, the main rachis winged 

 throughout ; puoice simple, linear, or forked or pinnatiiid, with two or three 

 deeply-cut segments on each side, which are j-^ in. 1., 1 lin. br. ; sori large, 

 terminal on the segments of the upper pinnae, often 1 lin. br., divided halfway 

 down or more, the base cuneate, the valves rounded. — Hk. Sp. 1. p. 10\. H. 

 semibivalve, Bl-. c*^- Gr. Ic. Fil. t. 83. II. natalense and tabulare, V. D. B. 



Hab. New Zealand, Auckland Isles, "Van Diemen's Land, Mauritius, Natal, and Cape 

 Colonj'. — A plant from Chiloe, gathered by Cuming, must probably be referred here ; 

 and in the specimens to which I have access I cannot distinguish the Japanese H. 

 Wrigldii, V. D. B., and the Fuegian H. Darwinii, V. D. B. The New Zealand H. imhri- 

 catum of Colenso differs by having the rachis much shortened, scarcely more than 1 in. 1., 

 and the pinnae imbricated and slightly crisped. This and the two preceding differ from 

 the species that follow next by their much broader segments 



9. H. capillaceum, Roxb.; st. about 1 in. 1., slender ; fr. 2-4 in. 1., by 1 in. or 

 more br., oblon":, pinnate, with distant segments ; mai7t rachis free throughout ; 

 lower pinnae alternate, about \ in. distant from one another, broadly rhomboidal^ 

 cut down to the rachis m the lower part but winged above ; segm, \ in. 1., 1 lin. 

 br., simple or once forked ; sori 2-6 to each jjinna, terminal on the lateral 

 segments ; invol. divided down nearly to the base ; tlie voices orbicular, strongly 

 toothed.— i?/l-. Sp. \.p. 109. t. 38. B. 



Hab. Confined to the island of St. Helena, where it has been long known. — Mucl 

 resembling in habit a slender form of H . Tunhridyense. 



10. H. gracile, Borj-; st. 2-3 in. 1., slender, wiry ; fr. 2-6 in. 1., 1-2 in. br., lan- 

 ceolate or oblong-acuminate, tripinnatifid ; main rachis nearly wingless through 

 out ; jnnnce distant, 1-3 in. 1., broadly rhomboidal, erecto-patent, cut down 

 within a very short distance of the rachis ; pinnl. sometimes simple, sometimes 

 again pinnatifid, with simple or forked narrowly linear divisions; sori large, 2-4 

 to a pinna, terminal or axillary on the lateral segments ; invol. not divided 

 more than halfway down ; valves rounded. — Hk, Sp. Fil. 1. p. 110. Hi: <£■ Gr. 

 Ic. Fil. t. 198. H. inaequale (Poir.) oldest name. 



Hab, Bourbon and Natal, Mauritius. 



11. II. exseiiiim, Wall. ; st. 1-2 in. 1., slender ; fr. 2-6 in. 1., 1-2 in. br., lanceo- 

 late-oblong, bipinnatifid ; main rachis winged above or throughout, more or less 

 densely clothed with deciduous ferruginous hairs; lower pnnna; v\\o\\\hoi^Si\, lan- 

 ceolate-acuminate, divided more than halfway down to the rachis into simple 

 or forked linear pinnules, slightly hairy on the principal veins ; sori 2-8 to a 

 pinna, terminal or axillary on the segments on both sides ; invol. divided down 

 nearly to the base ; valves oblong, bluntly denticulate at the apex. — Hk. iSp. 1, 

 p. 109. t. 38. A. H. macroglossum, V. D. B. 



Hab. Hills throughout India, from the Himalayas southward to Ceylon. — See remarks 

 under II. scahrum. It is recognizable also by the large lanceolate pinnae, which have the 

 central half entire. 



12. H. axillare, Swartz ; st. 1-2 m. i., very slender ; /;•. 3-8 in. 1., ^-1 in. m\, 

 flaccid, pendent, linear-oblong, tripinnatifid ; main rachis winged throughout or 

 above only ; lower jjinnai vaiyiug from under \ in. 1., with simple segments, to 

 1\ in. 1., divided down nearly to the rachis, with pinnatifid pinnules with several 

 segments ; ult. segm. not more than 1 lin. ]. ; sori 2-12 to a pinna, terminal 

 oii the lateral segments; invol. divided more than halfwav down ; valves rounded, 

 entire,— ///i-. Sp. \. p. 111. Hk. & Gr. Ic. Fil. 1. 124. Il.apicale, V.D.B. Griseb. 



