342 FLORA VITIENSIS. 
gerrimis; receptaculo incluso v. subexserto. —Ovalau, in mountain woods (M‘Gillivray! U. S. Expl. 
Exped.). 
2. H. multifidum, Sw, Syn. Fil. p. 149; rhizomate filiformi, repente; stipitibus gracilibus, 
teretibus, glabris; frondibus late ovatis, acuminatis, pinnatis; pinnis alternis patentibus, ovato- 
oblongis, bi-tripinnatifidis; laciniis angusto-linearibus, obtusis, spinuloso-dentatis; rachi flexuosa, 
sursum marginata; soris terminalibus v. supra-axillaribus; indusio ovato, bipartito, valvis superne 
argute serratis; receptaculo incluso.—Trichomanes multifidum, Forst. Prodr. n. 473. H. Feejeense, 
Brack. U. S. Expl. Exped. Filices, p. 266. t. 37. f. 2.—Viti Levu (Greffe!) and Ovalau (U. S. 
Expl. Exped.). 
3. H. dilatatum, Sw. Syn. Fil. pp. 147 et 373; rhizomate gracili, repente; stipitibus basi 
teretibus, superne subalatis; frondibus ovato- v. triangulato-oblongis, tripinnatipartitis ; pinnis pri- 
mariis alternis subrhomboideis obtusis v. acutis, secundariis ovatis obtusis; laciniis linearibus, ob- 
tusis; soris terminalibus; indusio orbiculari, receptaculo magno subexserto.— Trichomanes dila- 
tatum, Forst. Prodr. n. 467.— Viti, locality not specified (U. S. Expl. Exped.). 
4. H. flabellatum, Labil. Pl. Nov. Holl. vol. ii. p. 101. t. 250. f. 1; rhizomate gracili, 
flexuoso, repente; stipitibus filiformibus, nudis, glabris; frondibus ovato-lanceolatis, superne tripin- 
natifidis, inferne pinnatis; pinnis ovatis, acutis, segmentis linearibus obtusis integris; soris termi- 
nalibus, solitariis; indusio obovato, basi cuneata immerso, bilabiato, labiis rotundatis integerrimis.— 
H. nitens, R. Brown, Prodr. Nov. Holl. p. 159; Hook. et Grev. Icon. Fil. t. 197.— Viti, locality 
not specified (U. S. Expl. Exped.). 
5. H. formosum, Brack. U. S. Expl. Exped. Filices, p. 208. t. 37; rhizomate gracilimo, ` 
repente; stipitibus basi teretibus, superne alatis; frondibus erectis, oblongo-lanceolatis, acuminatis, 
tripinnatipartitis; pinnis primariis alternis adscendentibus oblongo-acuminatis, secundariis ovatis 
obtusis subpalmatis; laciniis angusto-linearibus, obtusis, simplicibus v. bifidis; soris paucis, supra- 
axillaribus; indusio orbiculari inflato, basi in laciniam brevem immerso, bipartito, valvis integerri- 
mis, zeceptaculo brevi apice capitato.— Viti (Seemann! n. 785). Also from Tahiti (U. S. Expl. 
Exped.). 
XI. Trichomanes, Linn. Syst. Nat.; Coroll Gen. Plant. p. 20. n. 991. Sporangia circa 
venam ultra frondis marginem in receptaculum filiformem productam sessilia, indusio frondi 
continuo cyathiformi cincta.—Filicule, rhizomate repente v. cæspitoso, frondibus simplicibus pin- 
natis v. decompositis, pellueido-membranaceis, rarissime coriaceis, venis simplicibus furcatis v. pin- 
natis, ramis liberis.— Didymoglossum, Desv. Ann. Soc. Linn. Paris, vol. vi. p. 380. Lecanium, etc., 
Presl, Hymenophyll. in Abhandl. der K. Bóhmisch. Gesell. 184, p. 103. t. 1, etc. 
In addition to the species described below, the following occur in tropical Polynesia :—1. T. concinnum, 
Mett. Linnea, 1868, p. 385, from Tahiti (Vieillard, Vasco). 2. Z. assimile, Mett. l.c. p. 386, from Anei- 
tum (Herres, n. 53). 3. T. Powelli, Baker, Syn. Fil. p. 76, from Samoa (Powell). 4. T. Motleyi, V. d. 
Bosch, Nederl. Kruidk. Arch. 1860, p. 145, from New Caledonia (Lenormand, fide Baker, Syn. Fil. p. 73). 
5. T. peltatum, Baker, Syn. Fil., from Samoa (Powell), and New Caledonia (Vieillard, 2166). 6. 7. Vieil- 
lardi, V. d. Bosch, Nederl. Kruidk. Arch. 1863, p. 207, from New Caledonia (Vieillard). 7. T. Draytonianum, 
Brack. U.S. Expl. Exped. Filices, p. 252, from Sandwich Islands (U. S. Expl. Exped.). 8. T. davallioides, 
Gaud. Freyc. Voy. Bot. p. 378, from Sandwich Islands (Dr. Nelson! Macrae! Strickland! Hillebrand !). 
- 9. T. Sandvicense, V. d. Bosch, Nederl. Kruidk. Arch. 1860, p. 165, from Sandwich Islands (U. S. Expl. 
Exped.). 10. T. letum. V. d. Bosch, Nederl. Kruidk. Arch. 1863, p- 218, from New Caledonia (Vieillard), 
11. T. longicollum, V. d. Bosch, l. c. p. 214, from New Caledonia (Vieillard). 12. Z pumilum, V . d. Bosch, 
le. p. 215, from New Caledonia (Vieillard). 13. 7. maximum, Bl. Enum. Fil. p. 288, from Aneitum 
(M‘Gillivray ! Sinclair !), and Navigator Islands (Sir E. Home !). ; 
