17. TRICIIOMANES, §§ EUTRICII0MANE3. 87 



12-18 in. 1., G-12 in. bv., ln-oadly ovate, tri- or qnadii-pinnatifid ; main racln's 

 very narrowly winged tlirougliout or al)ove only ; lower piiuice 4-0 in. 1., 

 ovate-rhoniboulal, cut down to a narowly-winged rachis ; piiinl. again deeply 

 pinnatifid, with rather distant, long, linear, sharply-toothed or pinnatifid scffm. ; 

 texture suhcoriaceous (three layers of cells), colour dark-green, nearly l)Iack 

 when dry, surface a little hairy ; rcms close, often more than one in the ultimate 

 segments ; sort 2 to 12 to a pinnule, small, axillary, often recurved, tube free, 

 much dilated, not two-lipped. — T. anceps, a, Hk. Si/n. \.p. 135, t. 40, C. {non 

 Wallich). T.'LQ^xi^wvVi, Ilk. Gard. Ferns, t.U. Davalliopsis, V.D.B. 



Hab. West Indian Islands southward to Peru and Brazil. — T. weddellii, elegans, and 

 opacum, V. D. B., apparently must be referred here. The oldest specific name is 

 T. eltyans (Richard). 



74. T. gigantcuvi, Bory ; iMzome wide-creeping, tomentose ; st. 4-G in. I., 

 strong, erect ; //•. 12-18 in. 1., G-9 in. br., ovate, quadri-pinnatifid ; main racMs 

 hardly at all winged above ; Xow&y: jnnnoe ovate-lanceolate, G-8 in. 1., cut down to 

 the rachis ; piiml. 1 in, 1., cut down very nearly to the rachis, the divisions 

 again deeply pinnatifid ; ultimate scgm. linear, distinctly flattened, 1 lin. 1., 

 •J lin. br., surface dark-green, naked, shining, texture between rigid and mem- 

 branaceous ; a central vein only in each segment ; sori 2 to 20 to a pinnule, 

 axillary ; tube more or less exserted, mouth rather dilated, not two-lipped. — Hk. 

 Sp. 1. p. 137. Ic. PI t. 702. T. elatum, V. D. B. 



Hab. Mauritius, Bourbon, Joanna Island, Malayan Archipelago and Fiji group.— A 

 handsome plant, distinctly quadri-pinnatifid, the most ample and divided species of the 

 genus, nearest T. mdfolimn, but neither so rigid or coriaceous, and with shorter ultimate 

 segments. 



7.5. T. Sprucei, Baker; St. nearly tufted, 1-3 in. 1., wiry, erect, naked, slightly 

 winged above ; fr. 3-4 in. 1., 1^-2 in. br., erect, ovate-deltoid, acuminate, 

 tripinnatifid ; main rachis very narrowly winged throughout ; ^j2«??ce erecto- 

 pateut, cut down to a very narrowly-winged rachis ; lower pinnl. deeply pin- 

 natifid, with forked or even pinnatifid lower segm. ; ultimate segm. flat, linear, 

 1^-2 lin. 1., texture sub-membranaceous, surface naked, dark olive-green when 

 dry, a single vein only in each segment, cellules large ; sori 2 to 12 to a pinna, 

 tube small, nearly free, mouth slightly spreading. 



Hab. North of Brazil and New Granada. — A more deeply-divided plant than 

 T. gemmatum, with a subdeltoid outline, more numerous sori, less rigid habit, and dis- 

 tinctly flattened segments. 



76. T. gemmatum, J. Smith ; rhizome strong, wiry,tomentose, beset with numerous 

 long black wiry fibres ; st. 1-3 in. I., naked, wiry, winged above ; fr. 2-G in. 1., 

 1-2 in. br., erect, subrigid, ovate-oblong, bipinnatifid ; main rachis narrowly 

 winged ; pimice erecto-patent, cut down to a narrowly-winged rachis ; lower 

 pinnl. deeply forked with subrigid, linear-filiform segm. H-2 lin. 1., cellules 

 large ; sori 1 to 8 to a pinna, minute, axillary, the tube turbinate, stalked, the 

 mouth nearly truncate. — T. cellulosum, Sturm, Hk. 27id Cent. Ferns, t. G3. T. 

 filiforme, jStiirm. T. longisetum, Brack. T. Asee-Grayi, V.D.B. T. fffinicu- 

 laceum, Hk. Sp. I. p. 135. (in part.). 



ITab. Venezuela, north of Brazil, Polynesian Islands, Java, Philippines, and Malayan 

 Peninsula. 



77. T. ericoides, Hedw. ; rhizome strong, wiry, tomentose; st, 1-4 in. 1., erect, 

 wiry, tomentose, not at all winged ; fr. 3-8 in. 1., 2-2| in. br., ereVt, subrigid, 

 lanceolate or oblong-lanceolate ; main rachis quite free ; pinnce spreading or 

 erecto-patent, l|-2 in. 1., cut down to the rachis ; /;i/«?i/. cut down into numerous 

 filiform capillary segm. 1^-2 lin. 1., colour dark-brown or blackish ; a central 

 costa only in the segments, not visible except under a high magnifying power ; 



