344 FLORA VITIENSIS. 
phyllum Neesii, Hook. Sp. Fil. vol. i. p. 99. Leptocionium Neesii, V. d. Bosch, Kruidk. Arch. vol. 
iv. p. 883.— Viti (Seemann! mixed with n. 783). 
8. T. caudatum, Brack. U. S. Expl. Exped. p. 256. tab. 36. fig. 5; rhizomate abbreviato, 
crasso, repente, fulvo-tomentoso; stipite brevi, tereti, scabro ; frondibus elongato-lanceolatis, acumi- 
natis, pinnatis; pinnis subalternis, oblongo-lanceolatis, acuminatis, bipinnatifidis, laciniis linearibus 
obtusis simplicibus v. bifidis; rachi subalata; indusio terminali v. supra-axillari, cylindrico, basi 
attenuato, subimmerso v. anguste alato, ore patente integerrimo; receptaculo exserto.— Viti (See- 
mann! n. 783). Also from Tahiti (U. S. Expl. Exped.). 
The Vitian plant is more delicate and flaccid, and the serrate apex of the pinne more elongated than 
in Brackenridge’s figure. This appears to be the plant to which V. d. Bosch gave the name T. Ase 
Grayi (Nederl. Kruidk. Arch. 1860, p. 180), and which he subsequently referred to 7. leptophyllum, A. 
Cunn. (l.c. 1863, p. 211). He quotes T. longisetum, Brack.,as the plant on which his species is based. 
But as the true 7. lougisetum, Bory, occurs in these islands, and as the characters mentioned in Bracken. 
ridge's note agree with that plant, there seems to have been some mistake in the labelling of the specimens 
which V. d. Bosch examined. 7. Jlavo-fuscum, V. d. Bosch, l.c. p. 211, from New Caledonia ( Vieillard), 
appears to agree exactly with our plant from Viti, but the distinguishing characters given seem to me 
insufficient for separating it from Brackenridge's species. 
9. T. filicula, Bory, in Duperrey Voy. vol. i. p. 283; rhizomate repente tomentoso, gracili ; 
stipitibus brevibus, superne alatis ; frondibus ovatis, tripinnatifidis ; pinnis ovatis, acutis; pinnulis in- 
ferioribus pinnatifidis ; segmentis linearibus, obtusis ; soris axillaribus ; indusio cylindrico, subexserto, 
ore bilabiato ; labiis triangulatis, obtusis.—Hymenophyllum alatum, Schk. non Sw. Farrnkr. p. 138. 
tab. 135 à.— Viti (U.S. Expl. Exped.). Also from Tahiti (Banks and Solander! Barclay ! n. 3350). 
10. T. longisetum, Bory, in Willd. Sp. Pl. vol. v. p. 510 (non Hook.); rhizomate repente, 
hirsuto; stipitibus erectis, teretibus, glabris; frondibus lanceolatis, tripinnatis ; pinnulis dichotomis, 
capillaceis, sed sub lente observatis membranaceo-marginatis; soris ad laciniarum apicem sitis; in- 
dusio cyathiformi, basi attenuato, ore integro truncato.— 7T. meifolium, Kaulf. Enum. p. 265. tab. 2 
(non Bory, nec Hook.).— Viti Levu (Greeffe!). Also from Aneitum (M‘Gillivray ! Milne !). 
ll. T. cartilagineum, Vieill. et Panch. in V. d. Bosch ; Nouv. Esp. d'Hymenoph. Journ. 
Bot. Néerland. 1861, p. 363; rhizomate horizontali, polyrrhizo ; stipitibus fasciculatis, erectis, basi 
incrassata hirsutis; frondibus rigidis, firmis, opacis, viridi-fuscescentibus, late ovatis, sursum angustatis, 
pinnato-bipinnatifidis; pinnis patulis, imbricatis, ovatis v. oblongo-acuminatis ; laciniis contiguis, ob- 
longis, lacinulis obeuneatis rugoso-plicatis dentatis ; venulis densis, elongatis, subparallelis; soris in 
pinnarum laciniis axillaribus ; indusio oblongo-cylindrico, ore integro.— 7T. rigidum, Sw., var. 8. Brack. 
U. S. Expl. Exped. Filices, p. 260.— Viti (Seemann! n. 829). Also from New Caledonia (Vieillard 
and Pancher, fide V. d. Bosch). 
The form and texture of the. frond, the venation, and the form of the indusium, at once enable us to 
separate this form from T. elongatum, A. Cunn., to which it is nearly allied. 
12. T. dentatum, V. d. Bosch, Nouv. Esp. d Hymenoph. ; Journ. Bot. Néerland. 1861, p. 363; 
 rhizomate brevi, polyrrhizo; stipitibus fasciculatis, erectis; frondibus membranaceis, ovatis, acumi- 
natis, bipinnatifidis; rachi anguste marginata ; laciniis primariis lanceolatis v. oblongo-lanceolatis, 
secundariis infimis laciniarum inferiorum utrinque remote subpinnatifide incisis, reliquis indivisis, 
margine dentatis ; soris in laciniis secundariis axillaribus, in dente obsolete immersis; indusio cylin- 
drico parumper ventricoso, ore integro v. subbilabiato.— Viti (Seematin ! n. 780, Milne!). And 
from Aneitum (M‘Gillivray !). 
13. T. Harveyi, Carr. in Herb. Mus. Brit. ; rhizomate brevi, adscendente, polyrrhizo ; stipitibus 
