17. TEICHOMANES, §§ EUTRICH0MANE3. 87 



12-18 in. 1., 6-12 in. bv., broadly ovate, til- or quadri-pinnatifid ; main raehis 

 very narrowly winged throughout or above only ; lower pinnce 4-6 in. 1., 

 ovate-rhomboidal, cut down to a narowly-winged raehis ; pinnl. again deeply 

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

 texture subcoriaceous (three layers of cells), colour dark-green, nearly black 

 when dry, surface a little hairy ; veins 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, u, Hk. Syn. 1. p. 135, t. 40. C. (mn 

 WalUtK). T. Leprieurii, Hk. Gard. Ferns, t, 11. Davalliopsis, V. D. B. 



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

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

 Ti elegams (Rioliard). 



74. T. giganteum, Bory ; thieome wide-creeping, t«mentose ; st, 4-6 in. 1., 

 strong, erect ; fr. 12-18 in. 1., 6-9 in. br., ovate, quadri-pinnatifid ; main racMs 

 hardly at all winged above ; lov/er pinnce ovate-lanceolate, 6-8 in. 1., cut down to 

 the raehis ; pinnl. 1 in. 1., cut down very nearly to the raehis, the divisions 

 again deeply pinnatifid ; ultimate segm. linear, distinel||y flattened, 1 lin. 1., 

 •f 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. 

 iSp. 1. p. 1_37. 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. mdfolivm, but neither so rigid or coriaceous, and with shorter ultimate 

 segments. 



75. 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 racMs very narrowly winged throughout ; pinnce erecto- 

 patent, cut down to a very narrowly- winged raehis ; lower pinnl. deeply pin- 

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

 I5-2 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. gemmaium, with a subdeltoid outline, more numerous sori, less rigid habit, and dis- 

 tinctly flattened segments. 



76. T. gemmaium, J. Smith ;»'fcoOTe strong, wiry,toinentose, beset withnumerous 

 long black wiry fibres ; St. 1-3 in. 1., naked, wiry, winged above ; fr. 2-6 in. 1., 

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

 winged ; pinnce erecto-patent, cut down to a narrowly-winged raehis ; lower 

 pinnl. deeply forked with subrigid, linear-filiform segm. 1-^-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. 2nd Cent. Ferns, t. 63. T. 

 filiforme, Sturm. T. longisetum. Brack. T. Asse-Grayi, V. D. B. T. foenicu- 

 laceum, Hk. Sp. l.p. 135. {in part.), 



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

 Peninsula. 



77. T. ericoides, Hedw. ; rhisome strong, wiry, tomentQse ; st. 1-4 in. 1., erect, 

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

 lanceolate or oblong-lanceolate ; main raehis quite free ; pinnos spreading or 

 erecto-patent, 1^-2 in. 1., cut down to the raehis ; pinnl. cut down into numerous 

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

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



