5364 FLORA VITIENSIS. 
approximatis, indusio reniformi plano coriaceo.—Aspidium decurrens, J. Sm, Hook. Journ, vol, jij, 
p. 410 (non Presl). A. alatum, Brack. (non Wall.) U. 8, Expl. Exped. Fihces, p. 179.—Viti (See. 
maun! n. 748; M‘Gillivray!), Also from Tahiti (Nelson ! Collie !) and Samoa (U, 8, Expl, 
Exped,). 
2, S. pachyphylla, T. Moore, Ind. Fil. p. 99; caudice erecto; stipitibus basi paleaceis; fron. 
dibus coriaceis, glabris, oblongis, acuminatis, pinnatis ; pinnis infimis, subpetiolatis, superioribus 
adnatis, lanceolato-oblongis v.e basi subrotundata sensim attenuatis, acuminatis, infimis y. inferio. 
ribus deorsum bipartitis v, pinnatipartitis, laciniis obtusis fertilibus contractis; soris inter costas 
secundarias biseriatis majoribus ; indusio membranaceo, rigido, glabro, rotundato-obiongo.— Aspidinm 
nachyphyllum, Kunze, Bot. Zeit. vol. vi. p. 259. A, repandum, Brack. U. 8. Expl. Exped. Filices, 
p- 179,—Viti (Milne), Also from Ancitum, New Hebrides (M‘Gillivray !), and Tahiti (U.S. Expl, 
Exped.), 
3. S. latifolia, Carr. ms. (non Presl); rhizomate repente; stipitibus cum ramificationibus 
ebeneis nitidis, infra paleis nigricantibus lanceolatis onustis; frondibus membranaceis, bipinnatis, 
apice pinnatifidis ; pinnis pinnulisque petiolatis, pinnulis elongato-deltoideis acuminatis, basi cordatis, 
apice pinnatifidis; segmentis triangulatis acutis v. obtusis crenatis; venis prominulis; soris parvis, 
subbiserialibus ; indusiis reniformibus, minutis, fugacibus.—Polypodium latifolium, Forst. Prodr, n. 
457; Swartz, Syn. Fil. p. 284; Schkuhr, Filices, t. 24 (nee Aspidium latifolium, J. Sm., non 
A. Forsteri, Kze.), Drynaria latifolia, Brack. U. 8. Expl. Exped. Filices, p. 50. Aspidium irregu- 
lare, Brack, U. 8. Expl. Exped, Filices, p, 180. Nephrodium irregulare, Baker, Syn. Fil. p. 298. 
Sagenia Hippocrepis, Brack. U. 8. Expl. Exped. Filices, p. 181.—Viti (Seemann! n. 747; Sir E. 
Home!), Lakemba (Harvey !), Matuku (M‘Gillivray!), Ngau (M‘Gillivray!), and Ovalau (M‘Gilli- 
vray!). Also from Pacific Islands (Forster!), Tahiti (Banks and Solander! Barclay! n. 8328! 
Collie! Salomon Islands (Milne!), and New Hebrides, Tiana (W. Anderson! M‘Gillivray !), and 
Manicola (C. Moore !). 
The very caducous indusium of this species has led to its being placed in Polypodium by some authors. 
The indusium is small, membranaceous, and reniform. Independent of the form of the true plants, the 
indusium supplies an easy means of distinguishing S. latifolia trom 8. apiifolia, being in the latter species 
large, firm, and more persistent. 
Trisus VI. POLYPODIEA. 
XXXI. Polypodium, Linn. Syst. Nat. ed. 1. Sporangia venarum apice v, latere imposita, in 
soros rotundos y. ovoideos, superficiales v. immersos ageregata. Venzo simplices v. furcatee, venulis 
liberis,—Vilices rhizomate repente, decumbente v. erecto; frondibus simplicibus pinnatifidis pinnatis 
vy. 2-3-pinnatis.—Adenophorus, Gand. Dict, Class. vol. vi. p. 587. Marginaria, Bory, Dict. Class, 
vol. vi. p. 587. Cryptosorus, Fée, Gen, Fil. p. 281, Lastrea, R. Br. Plant. Jay. Rar. p. 4. Phe 
gopteris, Fée, Gen. Fil. p, 242. 
[In addition to the species described below, the following have also been found in tropical Polynesia :— 
1. P . Samoense, Baker, Syn, Fil. p, 321, from Samoa (Powell, n. 111). 2. P. pleiosorum, Mett, Linnea, 
1869, p. 128, from Tahiti (Banks and Solander! D, Nelson! A. Collie! Vesco, Lepine). 3. P. pseudlo- 
grammitis, Gand. in Freye. Voy. Bot. p. 345, from Sandwich Islands (Nelson ! Macrae ! Brackenridge) 
and Hawaii (Mann), _ 4. P. sessilifolium, Hook. Sp. Fil. vol. iv, p. 168. t, 272 A, from Tahiti (D, Nelson ) 
and Raiatea (A. Collie!) 5, P. Hookeri, Brack. U. §. Expl. Exped. Filices, p. 4, from Oahu (D. Nel. 
son! Brackenridge), and Hawaii (Mann). 6. P. minimum, Brack. U.S. Expl. Exped. Filices, p. 5- © 1,.£.8 
(P. serrulatum, Hook. ex parte, non Swartz), from Sandwich Islands (Menzies! U.S. Expl. Exped., Hille: 
brand), Hawaii (Maun). 7. P. subpinnatifidum, Bl. Enum. p. 129 (P. Haaliloanum, Brack.), from ee 
wich Islands (U.S. Expl, Exped.), Hawaii (Mann). 8. P. trachycarpum, Mett, Linnwa (1869), p. 124 

