86 17. TKICIZOMANES, §§ BUTE ICH0MANE3. 



naked, 2-4 in. 1. ; fr. 6-18 in. 1., 3-6 in. br., fully pinnate; or the rachis very 

 slightly winged above, ovate-acuminate in general oiitline, the rachis hairy ; lower 

 pinnoe ovate-lanceolate, neaily pinnate, 2-4 in. 1. ; pinnl, divided down to a 

 narrow wing and segm. again pinnatifid about halfway down, margins fiiiely 

 hairy ; substance finely membranaceous, several fine »6??JS in each ultimate 

 segment ; sori 1 to 4 to a pinnule, tube quite sunk, mouth slightly spreading 

 with two lateral projections. — Hh. 8p. 1. p. 140, T. raaoroola.dos, Kunxe. 

 T. Lindeni, Presl, 



Hab. Mexico, Cuba, and Jamaica. 



70. T. rigidim, Svvartz ; st. tufted, erect, wiry, 2-8 in. I., naked or very 

 sljg^tly winged above ; fr. 2-3 in. 1., 2-6 in. br., deltoid or ovate-acuminate, tri- 

 or quadri-pinnatifid, the main rachis usually only slightly winged towards the 

 top ; lower pinnm %-Z in. 1., erecto-patent, ovate or lanoeolate-rhomboidal, cut 

 down to a rachis which is very narrowly winged throughout or free below ; 

 pinnl. deeply pinnatifid, with deeply toothed or even pinnatifid linear lobes ; 

 texture subooriaceous, colour dark -green, nearly black when dry, nearly naked, 

 often slightly crisped ; sori 2 to 12 to a pinnule, small, axillary, the tube more 

 or less exserted, the' mouth slightly dilated. — Hh. Sp. Ml. 1. p. 183. Beddome, 

 Fil. Ind. t. 8. Sturm, Brasil. i. 18. /. 12. T. Harveyi and Seemanni, Oarruth. 

 — jS, T. elongatvm, Cunning. ; fr. deltoid, segments broader, pinnae and pinnules 

 often imbricated ; inaol. slightly two-lipped. — Hk. Sp. 1. p. 134. Ic, PL t. 701. 



Hab. Tropical America, Cuba, and Mexico southward to Peru, and Eio Janeiro ; Poly- 

 nesian Islands, New Zealand, Japan, Malayan Peninsula, S. China, S. Hindostan, Ceylon, 

 Mascaren Isles, Natal, Cape Colony, Angola, Fernando Po. — Here belong numerous 

 speoiea of Van den Bosch, including Mcm6iooeimvm, dbuc/m'Wi'i!, Dvegei, Bornvni, acMllece- 

 foliwm, tama'risciferme, pwmilMm,, dentatum, and longicpUwm. 



71. T. dpiifolium, Presl ; st. tufted, 4-6 in. 1., strong, erect, more or less 

 fibrillose, and the tuft densely so at the crown ; fr. 9-18 in. 1., 4-8 in. br., ovate, 

 quadri-pinnatifid, the main rachis only slightly winged towards the apex; lower 

 pinnm 4-6 in. 1., 1-1 J in. br., lanceolate-acuminate ; pitml. with numerous segm., 

 which are again cut down into slightly flattened ultimate divisions, about 

 1 lin. 1. ; texture subrigid, surface naked, a single costa only in each segment ; 

 sori 2 to 12 to a pinnule, small, the involucre short, turbinate. — Hk. Sp. .1. 

 p. 137. T. meifolium, edit. 1. T. Bauerianum, Endl. T. exaltatum, Brack.— 

 — p, T. polyantlws, Hk. ; sori larger ; invol. | in. deep, 1 lin. br., cupshaped, two- 

 lipped.— ia. Sp. l.p. 138. Ic. PL t. 70S. 



Hab. Philippine Islands, Java, Polynesian Islands, and Norfolk Island. — This resembles 

 T. maximum'm general outline, but the habit is more graceful, the texture more delicate, 

 and the involucres are much smaller and shorter, vergipg upon those of ffymenophyUum. 



72. T. maxini'Mn,, Blume ; rMmome stout, creeping ; st. strong, erect, 3-6 in. I. ; 

 ;i^. 12-18 in. 1., 6-9 in.br., ovate, quadripinnatifid ; pinnae erecto-patent, ovate- 

 lanceolate, the largest 4-6 in. 1., 2 in. br. ; pinnL lanceolate-deltoixl, 1 in. or 

 more 1., cut down to the rachis into segm., which are again deeply pinnatifid ; 

 ultimate segm. 1^-2 lin. 1., slightly flattened, texture subrigjdj, surface naked, 

 dark-green ; a central costa only in each segment ; sori 2 to .8 to a pinnule ; 

 imvoL cylindrical, the njovith dilated, but not two-lipped. — Hk. Sp. 1. p, IS?- T. 

 anceps, ft Hk. Sp. 1. p. 135, {. 40. C. 3. T. intermedium, V. D. B. 



Hab. Java, Borneo, and Polynesian Islands. ^A larger plant than T. rigidvm, with 

 more divided pinnae and narrower segments. 



78. T. Prieurii, Kunze ; st. stout, tufted (sometimes 2 lin. thick below), 

 4-8 in. 1., naked or slightly tomentose, sometimes the upper part winged ; fr. 



