FLORA VITIENSIS. San 
been the subject of so much error that we give a diagnosis of both from the original specimens now 10 
Herb, Mus. Brit. i 
_, C. affinis, Sw. 1.¢. (non Sehk. Fil. p, 129, nee Hook. Syn. Fil. p. 27, nee Brack. U. 8. Expl. Exped. 
Filices, p. 283); stipite glabro; frondibus bipinnatis, coriaceis, supra opaco-viridibus, infra pallidioribus, 
supra preter raches costasque sparse hirsutas glaberrimis, infra ad costam nervosque paleis albidis ciliatis 
Squamulosis; pinnis subpetiolatis elongato-oblongis, acuminatis; pinnulis inferioribus subpetiolatis, supe- 
rioribus sessilibus, lineari-oblongis, acuminatis ; segmentis subfalcatis, lineari-oblongis, acuminatis, crenatis, 
basibus solutis, aliis pinnatifidis, e basi ad mediam soriferis; nervis plerumque bifurcatis 2; soris in fur- 
caturam primariam insidentibus, cost adpressis; receptaculo globoso; indusio rigide membranaceo, per- 
sistente, 
_ , CG. extensa, Sw. 1.c. (Schk. Fil. p. 127, Tab. 182, a-c); stipite rachique punctis asperis; frondibus 
bipinnatis, supra viridibus infra pallidioribus, supra preter raches costasque sparse hirsutas glaberrimis, 
infra ad costam nervosque paleis albidis magnis rotundato-ovatis ciliatis sparse instructis; pinnis sessili- 
bus oblongo-oyatis ; pinnulis sessilibus, elongato-acuminatis; segmentis oblongis, obtusis, serratis, patenti- 
bus; nervis furcatis——Forster’s specimen consists of two barren pinnew attached to the rachis. Dryan- 
der had referred two specimens from the Pacific Islands, collected by Forster, to Polypodium extensum, 
Forst., and on the authority of these specimens, R. Brown referred the species to Alsophila. These spe- 
cimens, however, belong to Alsophila lunulata, R. Brown, which can easily be distinguished from Forster's 
P. extensum by the larger size of the pinne and pinnules, the much smaller serratures of the segments, 
confined chiefly to the upper part, and the simple bullate scales on the costa. I have no means of deter- 
mining whether the species belongs to Cyathea or Alsophila, and therefore let Swartz’s name remain. 
Amphicosmia Tahitensis, Moore, Ind. Fil. p. 61. (Alsophila Tahitensis, Brack, U. 8. Expl. Exped. 
Filices, p. 288. t. 40. fig. 2), was found in Tahiti (Brackenridge). 
Hemitelia D' Urvillei, Mett. Linnewa, 1869, p. 160, from Tahiti (D’Urville, Chauvin, Vesco, Vieillard), 
1. C. propingua, Mett. Mig. Ann. Mus. Bot. Lugd.-Bat. vol. i. p. 563 stipite semitereti, 
basi paleaceo, antice sulcato tuberculato; frondibus subcoriaceis, supra lete, infra pallide viridibus, 
preter rhaches costasque supra adpresse ferrugineo-hirsutas glaberrimis; pinnis subpetiolatis elon- 
gato-oblongis; pinnulis oblongis acuminatis pinnatipartitis; segmentis oblongis, obtusis, subfalcatis, 
erenatis, basalibus externis minoribus; nervis tenuibus fureatis; soris inter costam et marginem zqui- 
distantibus; indusio globoso, irregulariter rampente.—C. uffnis, Brack. U.S. Expl. Exped. Filices, 
p. 283, ©. lewcolepis, Hook. Syn. Fil. p, 26 (in part), C. affinis, Hook. lc. p. 27 (in part). 
—Vanua Levy (Harvey! Brackenridge). Also from the Soloman Islands (Milne l), 
This is a well-marked species, easily distinguished from 0. affinis, Sw., with which it has been con- 
founded, by the form of the pinnae, the broader, more obtuse, and less coriaccous serments, and the brown 
pubescence of the rachis and costa on the upper side. 
III, Alsophila, R. Brown, Prodr. p. 158, Sporangia in receptaculo globoso vy. oblongo e 
venue bifureatione v. medio orta sessilia, soros sparsos seriatosve, interdum subconfluentes, formantia. 
Indusia e pilis squamisve laceris receptaculi—Filices pleramque arborescentes, frondibus herbaceis, 
amplis, bipinnatifidis hipinnatisve, nervis fureatis y. simplicibus.—Aaplophlebia, Mart. Ic. PE Crypt. 
64. Dicranophiebia, Mart. 1. c. 67. Chnoophora, Kaulf, Enum. Fil. p. 250, Trichapterts, Presl, 
Tent. Pter. p. 58. Gymnosphera, Blume, Enum. Pl. Jay, p. 242. Deokorepia, Presl, Die Gefiassb. 
p. 36. Lophosoria, Presl, l.c. p. 37. Amphidesmium, Schott, Gen. Fil, t.1, Metavya, Presl, Tent, 
Pter. p. 59. 
itt 2 ties described below, the following occur in tropical Polynesia:—l. A. 
seedalea nae v. Sel, Exped. Filices, p. 287. t. 40, from the Samoan Islands mde ee 
Lonisiade Archipelago (M‘Gillivray !). 2. A. decurrens, Hook. Sp. Fil. vol. i, p. 51, pa ne ( : Pl . 
son!), Aneitum (M‘Gillivray !), Samoan Islands (Brackenridge), and New Canney sy * ne fot : 
Nowe Caledonia, Mett. Ann. des Sc, Nat. 1861, p. 82, from Kanala, New Caledonia (Vieillard, n. ) 
4, A. Tuhitensis, Brack. U. 5. Expl. Exped. Filices, p. 288, from Tahiti (Brackenridge). 
1. A. lunulata, R. Brown, Prodr. p. 158; Brack. U. S. Expl. Exped, Filices, p, 285, t. 39; 
2x 
[PUBLISHED OCTOBER 30, 1869, ] 
