239 FLORA VITIENSIS. 
~ 
ran enocies enumerated below, we have in tropical Polynesia—l. G, dicarpa, R, Brown, Prog 
es ne a Pines (M'Gillivray 1), and New Caledonia (Vieillard, n. 1674). 2, G. circinata, a 
p ha 165 (G. semivestita, Lab, Sert. N. Cal. t. 11), from New Caledonia (Labillardiére), 3. G. 
yn. ‘Citert ensia pinnata, Kze. Annal. Pter. p. 6), | from Sandwich Islands, (Macrae !), A speci. 
Ayaan < Thu nberg in Herb. Mus. Brit. of his Polypodium glaucum, Fil. Jap. Pp. 388 (Mertensia glauca 
Sw.) shows that Kunze’s species is a good one. The Japan plant is glabrous, with elliptic-oblong branches 
Sha oblong obtuse segments, while in G. pinnata the rachis 1s hirsute above, and is sparsely covered with 
dark scales below, the branches are laneeolate, and the segments linear obtuse. A G. flabellata, R. Brown, 
Prodr. p. 161, from Aneitum (M‘Gillivray! n. 19) and New Caledonia habitants? Vieillard, n. 1674), 
5. G, Owhyhensis, Hook. Sp. Mil. vol. i. p. 9, from Sandwich Islands (Macrae !). To these should be added 
Stromatopteris moniliformis, Mett, Ann, des Se. Nat. 1861, p. 84, t. 8, New Caledonia (Vieillard, 1571), 
1. G. flagellaris, Spreng. Syst. Veg. vol. iv. p. 29; stipite rachibusque teretibus ; fronde dicho. 
tome ramosa, glaberrima, subtus pallidiore, subeoriaceo-membranacea ; ramis apice pinnas gemi- 
natas gerentibus; pinnis elongato-lineari-acuminatis ; pinnulis adnatis erecto-patentibus linearibus, 
obtusis, in rachi secundaria decurreutibus.— Mertensia flagellaris, Bory in Willd. Sp. Pl, vol. y, p, 
74.—Viti Levu (Milne !). Collected also in Aneitum (M‘Gillivray ! n. 66). 
9. G. dichotoma, Hook. Sp. Fil. vol. i. p. 12; (G@. Hermanni, R. Brown, Prodr. p, 161); 
rachibus semel pluriesve di- v. trichotome ramosis, teretibus ; ramis erecto-patentibus, apice et supra 
basin partitionum pinnas geminatas gerentibus; pinnis glabris, subtus glaucis, lanceolatis y. elon- 
gatis, acuminatis profunde pinnatipartitis; laciniis elongato-oblongis v. linearibus, integerrimis, ob- 
tusis, apice emarginato-incisis, basalibus externis plerumque elongatis v. pinnatifidis.—Filix cal. 
maria, Rumph. Amb. vol. vi. p. 85. t. 88. Polypodium dichotomum, Thunb. FI. Jap. p. 838; Forst, 
Prodr, n. 450. Mertensia dichotoma, Willd. Act. Holm, 1804, p. 167; Sw. Syn. Fil. p, 168, Viti 
Levu and Taviuni, (Seemann! n. 791; Harvey!). Also collected in Society Islands (Forster!), in 
Sandwich Islands (Strickland! Macrae!), Eromanga (M‘Gillivray!), Aneitum (M‘Gillivray!), 
Tahiti (Nelson!), Wallis Island (Sir E. Home!), and Navigators’ Islands (Sir E. Home!) Also 
in the tropics of both hemispheres. 
This is a widely distributed plant, and many of its local varieties have received distinct names. Among 
these must be reckoned Mertensiw emarginata, Brack. U, 8. Expl. Exped. Filices, p, 297. t. 42, whieh 1s 
chiefly distinguished from the normal form by the rachis and segments being covered beneath with a rusty 
tomentum, and by the segments having a distinct emargination, 
Susorpo Il, POLYPODIACEZ. 
Trizsus l CYATHEA, 
II. Cyathea, Smith, Mem. Acad. Turin, vol. v. p. 416; R. Brown, Prodr. p. 158. Sporangia 
im receptaculo subgloboso v. clavato, e venz bifurcatione v. medio orta sessilia, soros hemispheericos 
y. subglobosos formantia, Indusia receptaculo substrata, globosa, clausa, apice dehiscentia, ore demum 
exacte truneato v. magis minusve profunde partito.—Filices plerumque arborescentes, frondibus sim- 
plicibus pinnatis vy. bipinnatis; nervis furcatis,—Spheropteris, Bernh. Schrad. Journ. vol. ii, 1801, 
p. 122, Disphenia, Presl, Tent. Pter. p. 55. Schizocena, J. Smith, Hook. and Bauer, Gen, Fil 
t. 2 and 23. 
Tn addition to the species described below, the following have been found in tropical Polynesia oe 
0. Ancitense, Hook. Syn. Fil. p.26, from Ancitum (MCGillivray! Milne!)..-2. C. igrioans, Matt a Mit 
Ann, Mus. Bot, Lued.-Bat. vol. i. p. 56, from Tahiti (Collie!), 3. CL Vieillardii, Mett. Ann. des Se. + 
1861, p. 82, from New Caledonia (Vieillard, n. 1629). 4, CO. eanaliculata, Brack, U. 8. Expl. Expet. 
Filices, p. 282 (vix Willd.), from Tahiti (Brackenridge). 5. C. affinis, Sw. Schrad. Journ. 1800, vol. 2 
p. 94 (P olypodium affine, Forst. Prodr, n. 455), from Pacific Islands (Forster). 6. O. ewtensa, SW. 3 
Pp. 93 (Polypodium extensum, Forst. 1. ¢. n. 453), from Pacific Islands (Forster). The two last species bay 
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