17. TRIOHOMANES, §§ EUTRICHOMANES. 85 



64. T. cqudatum, Brack. ; rhizome creeping ; at. 1-2 in. 1., naked ; fr. 3-12 

 in. 1., 1-3 in. br., lanceolate, tripinnatifid, main rachis only very slightly winged 

 above ; lower pinnm ovate-rhomboidal, erecto-patent, pinnatifid down to a 

 narrowly-winged rachis ; pinnl. again pinnatifid ; ultimate segm. about 1 lin. 1., 

 J lin. br. ; texture membranaceous, surface naked, a central costa only in each 

 segment ; sori 1 to 8 to a pinna, tube exserted, mouth spreading, not two-lipped. 

 —Brackenridge, t. S6,flg. 5. T. Flavo-fuscescens, V.D.B. 



Hab. Fiji Islands, Tahiti, and N. S. Wales. — ^Very near T. tenerum, but stronger in 

 habit, darker in colour, the erecto-patent pinuie broader and more divided. 



65. T. tenerum, Sprengel ; rhizome creeping, tomentose, very slender ; st. 1-2 

 in. 1., slender, naked ; fr. 3-8 in. ]., 1-1| in. br., pendent, flaccid, lanceolate, 

 tripinnatifid, the main rachis only very slightly winged towards the apex ; 

 pinnae distant, flaccid, cut down to a narrowly-winged rachis, with distant 

 deeply incised or pinnatifid pinnl. ; ultimate segm. 2-2^ lin. 1., f lin. br., 

 texture membranaceous, surface naked ; a central costa only in each segment ; 

 sori 1 to 4 to a pinna, tube more or less exserted, mouth spreading, but not 

 lipped T. angustatum, Gwrm. Hh. Sp. 1. p. 141. Hk. S Gr. Ic. Fil. t. 166. 



Hab. Tropical America, from Mexico southward to Peru and Brazil and island of 

 Tristan d'Acunha. 



66. T. exsectum, Kunze ; rhizome wide-creeping, slender, tomentose ; st. slender, 

 naked, 1-3 in. 1. ; fr. 6-12 in. 1., 1-2 in. br., pendent, flaccid, lanceolate, tripin- 

 natifid, the main rachis narrowly winged in the upper half; pinnm distant, 

 flaccid, the upper ones often 3-4 in. 1., the lower ones ovate or lanceolate, 

 divided down to a narrowly-winged rachis, with a few deeply-toothed or 

 pinnatifid pinnl. ; texture membranaceous, surface naked ; a central costa only in 

 each segment ; sori 1 to 4 to a pinna, tube sunk, the mouth truncate. — Hh. Syn. 

 Fil. 1.^.141. 



Hab. S. Chili, Chiloe, and Juan Fernandez. — A much larger plant than T. tenerum, 

 with leSB divided pinnae and broader and more distant segments. 



67. T. Colensoi, Hk. fil.; rhizome slender, naked, wide- creeping ; st. about 

 1 in. 1., slender, naked ; fr. 2-4 in. 1., \-l in. br., oblong-lanceolate, acuminate, 

 fully pinnate ; pinnce distant, ovate or lanceolate-rhomboidal, stalked, and cut 

 nearly or quite down to a slender rachis ; segm. linear-acute, very narrow ; 

 substance flaccid, a central costa only in each segment ; sari solitary, supra- 

 axillary, the tube stipitate, the mouth scarcely dilated ; recept. very long and 

 slender.— iTii. 2. Cent. Ferns, t. 79. 



Hab. New Zealand; discovered by the Eev. W. Colenso. 



68. T. trichoideum, Sw. ; rhizome creeping, slender j st. 1-2 in. 1., very slender, 

 naked ; fr. 4-8 in. 1., 1-2 in. br., pendent, flaccid, lanceolate, tripinnatifid, main 

 rachis only very slightly winged at the apex ; pinnce flaccid, 1-2 in. 1., the rachis 

 only winged above ; pinnl. deeply cut with distant linear-filiform segm. 1-2 lin. 

 1.^ J.i. lin. br. ; texture membranaceous, a central costa only in each segment ; 

 sori 1 to 4 to a pinna, the tube exserted, sometimes stalked, the mouth spreading, 

 not two-lipped.— 1ft. Sp. 1. p. 141. HL S Gr. Ic. Fil. t. 199. 



Hab. West Indian Islands and Mexico southward to Ecuador and Brazil. — Apparently 

 this is the T. capillaceum of Linnaeus. 



if\'_ Fronds decompound, main rachis rigid, ultimate segments suhcoriacems, 

 exeepiin No. 69. Sp. 69-78. 



69. T. seandens, Lina Herb, ; rhizome wiry, wide-creeping ; st. strong, erect, 



