17. TRICHOMANES, EUTRICIIOMANES. 85 



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

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

 above ; lower pinnae 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. 36, fig. 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 pinnae 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., 1-1 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., % 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, Carm. Hk. Sp. 1. p. 141. Hk. & 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; pinnae 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. Hk. Syn. 

 Fil. I. p. 1*11. 



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

 with less 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., -1 in. br., oblong-lanceolate, acuminate, 

 fully pinnate ; pinnae 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 ; sori solitary, supra- 

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

 slender. //. 2. Cent. Ferns, t. 79. 



Hab. New Zealand, discovered by the Rev. W. Colenso. 



68. T. trichoideum, Sw. ; rhizome creeping, slender ; 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. ]., the rachis 

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

 1., j-| 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. Hk. Sp. 1. p. 141. Hk. & Gr. Ic. Fil. t. 199. 



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

 this is the T. capillaceum of Linnaeus. 



iff Fronds decompound, main rachis rigid, ultimate segments subcoriaceous, 

 except in No. 69. Sp. 69-78. 



69. T. scandcns, Linn. Herb. ; rhizome wiry, wide-creeping ; st. strong, erect, 



