17. TRICHOMANES, §§ EUTRICIIOJIANES. 85 



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

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

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

 narrowly-winged racliis ; pimil. 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. QQ,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 pinure broader and more divided. 



65. T. tenerum, Sprengel ; r^/co?«e creeping, tomtntose, very slender ; 5^. 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 ; 

 pinn(B 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 spreadino:, but not 

 lipped. — T. angustatuni, Carm. Hk. Sp. I. p. 141. Hk. <& Gr. Ic. F'd. t. 16G. 



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

 Tristan d'Acunha. 



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

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

 natifid, the main rachis narrowly winged in the upper half; piimw 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 ^?H«^.; texture membranaceous, surface naked ; a central C05to only in 

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

 Fil. l.p. 141. 



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

 with less dividtd pinnae and broader and more distant segments. 



67. T. Coloisoi, Ilk. 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 ; pinnce distant, ovate or lanceolate-rhomboidal, stall<ed, 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, sujjra- 

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

 slender. — Hk. 2. Ce7it. 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 ; 2>in?ia; flaccid, 1-2 in. 1., the rachis 

 only winged above ; pin7iL deeply cut with distant linear-filiform segm. 1-2 lin. 

 ]., 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.— iT/l-. *S>. 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. capillactuni of Linnseus. 



+t+ Fronds decompound, main rachis rigid, ultimate segments subcoriaceous, 

 except 171 No. 69. Sp. 69-78. 



69. T. scandc7is, Linn Herb. ; rhizome wiry, wide-creeping ; st. strong, erect, 



