364 FLORA YITIENSIS. 
;approximatis, indusio reniformi plano coriaceo.—Aspidium decurrens, J. Sm. Hook. Journ. vol. iii. 
p. 410 (non Presl). .4. alatum, Brack. (non Wall.)-U. S. Expl. Exped. Filices, p. 179.— Viti (See- 
mann! n. 748; M‘Gillivray!). Also from Tahiti (Nelson! Collie!) and Samoa (U. S. 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 v. inferio- 
ribus deorsum bipartitis v. pinnatipartitis, laciniis obtusis fertilibus contractis; soris inter costas 
secundarias biseriatis majoribus; indusio membranaceo, rigido, glabro, rotundato-oblongo.— Aspidium 
pachyphyllum, Kunze, Bot. Zeit. vol. vi. p. 259. A. repandum, Brack. U. S. Expl. Exped. Filices, 
p. 179.— Viti (Milne). Also from Aneitum, New Hebrides (M‘Gillivray !), and Tahiti (U. S. Expl. 
Exped.). 
8. 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. 234; Schkuhr, Filices, t. 24 (nec Aspidium latifolium, J. Sm., non 
A. Forsteri, Kze.)). Drynaria latifolia, Brack. U. S. Expl. Exped. Filices, p. 90. Aspidium irregu- 
lare, Brack, U. S. Expl. Exped. Filices, p. 180. Nephrodium irregulare, Baker, Syn. Fil. p. 298. 
Sagenia Hippocrepis, Brack. U. S. 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. 3328! 
' Collie! Salomon Islands (Milne!), and New Hebrides, Tana (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 from S. apiifolia, being in the latter species 
large, firm, and more persistent. 
. Trrpus VI. POLYPODIER. 
XXXL Polypodium, Linn. Syst. Nat. ed. 1. Sporangia venarum apice v. latere imposita, in 
soros rotundos v. ovoideos, superficiales v. immersos aggregata. Venz simplices v. furcatze, venulis 
liberis.—Filices rhizomate repente, decumbente v. erecto; frondibus simplicibus pinnatifidis pinnatis 
v. 2-3-pinnatis.— Adenophorus, Gaud. Dict. Class. vol. vi. p. 587. Marginaria, Bory, Dict. Class. 
vol. vi. p. 587.  Cryptosorus, Fée, Gen. Fil. p. 281. Lastrea, R. Br. Plant. Jav, Rar. p. 4. Phe- 
gopteris, Fée, Gen. Fil. p. 242. PE 
In addition to the species described below, the following bave 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, fromv Tahiti (Banks and Solander! D. Nelson! A. Collie! Vesco, Lepine). 3. P. pseudo- 
grammitis, Gaud. 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. t. S. 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. t. 1. f. 3 
(P. serrulatum, Hook. ex parte, non Swartz), from Sandwich Islands (Menzies! U.S. Expl. Exped., Hille- 
brand), Hawaii (Mann). 7. P. subpinnatifidum, Bl. Enum. p. 129 (P. Haaliloanum, Brack.), from Sand- 
wich Islands (U.S, Expl. Exped.), Hawaii (Mann). 8. P. trachycarpum, Mett. Linnea (1869), p. 127, 
