FLORA VITIENSIS. 343 
1. T. Vitiense, Baker, Linn. Soc. Journ. vol. ix. p. 338. tab. 8, fig. D; frondibus substipi- 
tatis, oblongis, integris vel bifidis, costa centrali sola; venis lateralibus et venulis spuriis nullis, in- 
dusio solitario terminali incluso, ore integro subdilatato.— Viti (Milne !). 
2. T. bimarginatum, V. d. Bosch, Nederl. Kruidk. Arch. 1861, p. 143; rhizomate gracili, 
repente, ferrugineo-tomentoso ; stipitibus brevibus, complanatis, dense tomentosis ; frondibus oblongis 
v. polymorphis, e basi cuneatis, margine integris v. irregulariter lobatis, costa flabellatim in venas 
simplices v. furcatas abeunte, interpositis venulis spuriis in venulam submarginalem confluentibus ; 
soris mediocribus immersis, indusio cylindrico in limbum amplum undulatum subito dilatato.— T. 
muscoides, Brack. U. S. Expl. Exped. Filices, p. 249; Hook. and Baker, Syn. Fil. p. 75 ex parte. 
— Viti, iu humid mountain forests, on rocks and the trunks of trees (U. S. Expl. Exped.). 
T. muscoides, Sw. Fl. Ind. Occ. p. 1726; Prodr. p. 142, is the same as T. apodum, Hook. and Grev. Ic. 
Fil. t. 117. Original specimens communicated by Swartz are in Herb. Mus. Brit. The species is also 
faithfully figured by Hedwig (Gen. Fil. t. 3. f. 3) under the name T. hymenodes, which is placed by Swartz 
himself as a synonym of his species (Prodr. p. 142). T. muscoides, Hook. and Grev. Ic. Fil. t. 179; Hook. 
Sp. Fil. vol. i. p. 117; and Syn. Fil. p. 75, is a very different plant, and has been separated by Presl under 
the name 7. Hookeri (Hymenophyll. p. 16). 
3. T.saxifragoides, Presl, Abhandl. d. Bóhmisch. Gesell. 1845, p. 131; rhizomate gracili, 
subtus tomentoso ; frondibus flabellato-suborbicularibus, palmato-incisis ; segmentis numerosis, lineari- 
acutis; venis approximatis, irregularibus, distinctis; indusiis 2-4, inclusis, ore dilatato subbilabiato. 
— Viti (Seemann! n. 786). 
4. T. alternans, Carr. ms. in Herb. Mus. Brit.; rhizomate filiformi, repente, pilis elongatis 
fuscis parce vestito; stipitibus perbrevibus, alatis; frondibus erectis, simplicibus, pinnatisectis v. bi- 
pinnatisectis ; pinnis alternis, erectis ; segmentis elongato-linearibus, acutis, subapiculatis, margine in- 
tegris, hyalinis ; soris ad apicem segmentorum secundariorum immersis, cylindricis, basi attenuatis, ore 
dilatato integro.— Viti (Seemann! with n. 784). 
. This species is nearly allied to T. erectum, Brack., but differs from it in habit, in the form and direc- 
tion of the segments, and the obvious hyaline margin. 
5. T. erectum, Brack. U. S. Expl. Exped. Filices, p. 250, tab. 36. fig. 1; rhizomate filiformi, 
repente, T. parvulum, Brack. (non Poir.) U. S. Expl. Exped. Filices, p. 250, parce rufo-tomentoso ; 
stipite brevi, alato; frondibus erectis, ovato-oblongis, bi- v. tripinnatifidis; pinnis alternis, erecto- 
patentibus; laciniis angusto-linearibus, emargiuatis v. obtusis; indusio supra-axillari, cylindrico, 
immerso, basi attenuato, ore integerrimo subpatente; receptaculo exserto.— T. tenue, Brack. l. c. 
p. 251.— Viti, on Breadfruit-trees (U.S. Expl. Exped.). The larger form; called T. tenue by Bracken- 
ridge, from Aneitum (M‘Gillivray !) 
6. T. humile, Forst. Prodr. n, 464; rhizomate repente, dense tomentoso ; stipitibus gracilibus, 
superne alatis; frondibus lanceolatis, acutis, bipinnatifidis; pinnis sepissime unilateralibus; seg- 
mentis linearibus, obtusis, integris ; soris solitariis, in laciniis axillaribus ; indusio subcylindrico, sub- 
exserto, ore amplo undulato vix bilabiato.—Viti (U. S. Expl. Exped.). Also from Society Islands 
(Forster! Banks and Solander! D. Nelson! Barclay! A. Collie !). 
7. T. Neesii, Blume, Enum. Fil. Jav. p. 226; rhizomate filiformi, repente ; stipitibus alatis v. 
subalatis, fronde parum brevioribus; frondibus ovatis v. oblongis, tripinnatifidis, laciniis primariis 
late ovatis v. trapezoideo-oblongis, secundariis obovatis, lacinulis linearibus subelongatis flexuoso- 
squarrosis crispato-undulatis sinuato-dentatis; soris immersis, obovatis, dorso muricato-dentatis, 
tubo latiuscule marginato brevi late conico, labiis tubo duplo longioribus sinuato-dentatis.— Hymeno- 
