356 FLORA VITIENSIS. 
XXII. Diplazium, Swartz in Schrad. Journ. 1800, vol. ii. p. 61.  Sporangia venis furcatis im- 
posita, in soros lineares geminatos superiores sepe simplices dorso venarum venularumque collecta. 
Indusia e vena orta, in soris geminatis bilateralia, unum versus costam alterum versus costulam libe- 
rum, in soris simplicibus unilateralia. Venz simplices v. furcatze, venulis liberis v. conniventibus.— 
Filices rhizomate erecto v. subarborescente, frondibus herbaceis v. coriaceis, simplicibus pinnatis v. 
decompositis.--Lotzea, Klotzsch et Karst. in Linnza, 1847, p. 358. — Callipteris, Bory, Voy. vol. i. 
p.982. Anisogonium, Presl, Tent. Pterid. p. 115. — Microstegia, Presl, Epim. p. 90. 
In addition to the species described below, the following occur in tropical Polynesia :—1. D. Solandri, 
Carr. in Herb. Mus. Brit. (Asplenium tenerum, Sol. ms., non R. Br.), from Society Islands (Banks! 
Menzies!). Distinct from D. grammitoides, Presl, to which Moore has referred it (Ind. Fil. p. 329). 2. 
D. pallidum, T. Moore, Ind. Fil. p. 335, from Aneitum (M'Gillivray! n. 30). 3. D. dilatatum, Bl. Enum. 
Pl. Jav. p. 194, from Aneitum (M‘Gillivray!). 4. D. harpeodes, T. Moore, Ind. Fil. p. 330 (D. falcatum, 
Brack. non Liebm.), from Samoa (U.S. Expl. Exped.). 5. D. Sandwichense, Presl, Tent. Pterid. p. 114, from 
Sandwich Islands (Meyer). 6. D. alternifolium, Bl., var. oblongifolium, Hook. Sp. Fil. vol. iii. p. 240, from 
Aneitum (M‘Gillivray, Milne, n. 298). 7. D. sororium, Carr. (Asplenium, Mett. Ann. Sc. Nat. ser. iv. vol. 
xv. p. 73), from New Caledonia (Vieillard). 8. D. Arnottii, Brack. U. S. Expl. Exped. Filices, p. 144, from 
Sandwich Islands (Nelson! Menzies! Macrae! Hillebrand!). 9. D. melanochlamys, T. Moore, Ind. Fil. 
p. 332, from Lord Howe’s Island (Milne! n. 36, M‘Gillivray! n. 702. 10. D. Brackenridgii, T. Moore, 
Ind. Fil. p. 324 (D. speciosum, Brack. non Bl), from Samoan Islands (U. S. Expl. Exped.). 
1. D. tenerum, Presl, Epim. p. 84; rhizomate brevi, repente; stipitibus semiteretibus, supra 
suleatis glabris, basi paleaceis; frondibus subcoriaceis, ovatis, acutis, pinnatis; pinnis petiolatis, 
versus apicem confluentibus, alternis, lineari-oblongis, acuminatis, inciso-lobatis, basi inzequaliter 
subeuneatis; lobis subrotundis, dentatis, rachibus petiolis costisque paleis linearibus vestitis; soris 
plurimis; indusio membranaceo, lineari, integerrimo ; rachi interdum prolifera.— D. extensum, J. Sm. 
in Hook. Journ. 1841, p. 407 (partim). D. bulbiferum, Brack. U. S. Expl. Exped. Filices, p. 141. 
t. 18. fig. 1. D. Brackenridgii, Baker (non Moore) in Syn. Fil. p. 234.— Viti (Seemann! n. 825; 
Milne). 
2. D. decussatum, J. Sm. Comp. Bot. Mag. 1846, p. 28; rhizomate repente, ramoso ; stipiti- 
bus semiteretibus, supra sulcatis, paleaceo-hirsutis ; frondibus membranaceis, glabris, oblongo-lan- 
ceolatis, acuminatis, pinnatis; pinnis sessilibus, alternis, oblongo-lanceolatis, acuminatis, piunatifidis ; 
laciniis oblongis, obtusis, crenatis; rachi costa venisque paleaceo-hirsutis v. subglabris; soris 
obliquis ; indusio membranaceo.— D. congruum, Brack. U. S. Expl. Exped. Filices, p. 141.t. 18. fig. 2. 
Viti (U. S. Expl. Exped.). Also from Samoan Islands (U. S. Expl. Exped.) and Sandwich Islands 
(Macrae! Hillebrand !). à 
3. D. proliferum, Kaulf. Enum. Fil p. 182; stipitibus robustis, erectis, sæpe muricatis ; 
frondibus amplis, pinnatis (v. in var. B. bipinnatis); pinnis oblongo-lanceolatis, grosse serratis v. 
lobatis, axillis pinnarum superiorum interdum bulbiferis; venis numerosis, pinnatis, parallelis, irre- 
gulariter conniventibus ; soris linearibus, parallelis.—.4splenium proliferum, Lam. Encyc. Méth. 
vol. ii. p. 307. Callipteris prolifera, Bory, Itin. vol. i. p. 258. Asplenium decussatum, Swartz, 
Syn. Fil. pp. 75, 260. Anisogonium decussatum, Presl, Tent. Pterid. p. 116.— Viti (Seemann ! n. 818; 
Sir E. Home!). Also from New Ireland (Barclay! n. 3556), New Hebrides (Moore !), and Tahiti 
(U. S. Expl. Exped.). 
Var. B. bipinnata, Moore, Ind. Fil. p. 218; pinnis basi pinnatis, sursum pinnatifidis, apice grosse 
serratis; segmentis oblongis, acutis, subfaleatis.— Digrammaria robusta, Fée, Gen. Fil. p. 11 8.—Viti 
(Sir E. Home! Milne! U. S. Expl Exped.). Also from Samoa (Powell !). 
4. D. esculentum, Swartz, Syn. Fil. p. 92 ; trunco erecto, subarborascente ; stipitibus robus- 
tis, erectis, villose pilosis; frondibus membranaceis, oblongo-lanceolatis, acuminatis, bipinnatis, 
