76 
SOCIETY ISLANDS. 
\Musci. 
but placed a little to one side, distinguishes this from the other congeners with wliich it is most likely to 
be confounded. 
1. Trichomanes memhranacemn. Linn. — Hook. Lx. FI. t. 76. 
Hitherto this species has been only known as a native of the West Indies. 
2. Trichomanes humile ; fronde lanceolata bipinnatifida glabra marginata, laciniis line- 
aribus obtusis integerrimis, involucris oblongo-cylindraceis, ore bilabiato, labiis rotundatis. 
Hook, et Grev. — “ Forst. Prodr. n. 464.” Sw. Syn. Fil. p. 143 c^371. Hook, et Grev. Ic. 
Fil. t. 85. — T. minutulum. Gaud, in Freyc. Voy. p. 377. t. 12. 2 ? 
Bory (in Duperrey’s Voyage) states that Gaudichaud’s plant, originally from the Moluccas, had been 
found in Tahiti by DurviUe ; and his figure, %vith the exception of the magnified extremity of the involucre, 
which is probably erroneous, answers pretty well to our plant. — This and the following belong to Desvaux’s 
genus Didymoglossum. 
3. Trichomanes Filicula ; fronde lanceolata tripinnatifida glabra, laciniis linearibus ob- 
tusis integerrimis, involucris oblongo-cylindraceis, ore bilabiato, labiis ovatis acutiusculis. — 
Boj-y in Dujierrey Voy. v. 1. p. 283. — T. bipunctatum. Poir. — Hymenopbyllum Filicula. 
Willd. Sp. PL V. 5. p. 528. 
Notwithstanding some slight difference between Willdenow’s description and the above character, we 
believe oiu plant to be the same ; the more so as Bory states that Diuwille has likewise met with it in Tahiti. 
We have long ago received it from Mr. Menzies, under the manuscript name of T. hilingue. 
1. Alsopbila ; frondibus triplicato-pinnatis, pinnis acuminatis, pinnulis lineari- 
oblongis obtusis serrulatis, radii punctato-aspero, caudice arboreo. — Polypodium extensum. 
“ Forst. Prodr. n. 453.” — Cyathea extensa. Sw. Syn. Fil. p. 139 et 364. Schkuhr, Fil. t. 
132. — Alsopbila extensa. Desv. 
We may here remark that Mr. CoUie gives a list of fifty-two species of Ferns collected in Tahiti ; whereas 
we can find only forty-one in the Collection ; and, in Mr. Collie’s notes, the Sadleria is not noticed. 
Ord. LIII. MUSCI. Juss. 
1. Octoblepharum albidmn. Hedw. 
1. Dicranum bryoides ; /3. osniundioides. Arn. Disp. Muse. p. 28. — D. osmundioides. 
Fngl. Bot. t. 1662. 
1. Orthotricum apieulatum? Hook. Muse. Fxot. t. 45. 
The specimen in the Collection is in a young state, so that we cannot be positive of its identity with the 
Mexican species ; the caly^itra, also, is here provided wdth a few hairs, while in the other it is decidedly 
glabrous. 
1. Neckera undulata. Hedw. Muse. Frond, v. 3. t. 21. 
The Hypnum diiplicatum, (Hedw. Sp. Muse. Supp. 3. t. 279,) gathered by Mr. Menzies in Tahiti, appears 
to us merely Nechera pennata, found there also by DurviUe. 
2. Neckera jilieina. Hedw. Muse. Frond, v. 3. t. 18. 
1. Hypnum Chaniissonis. Hornsch. Hor. Pkys. Ber. p. 66. t. 13. 
Our authentic specimens of H. Chaniissonis differ from those in the CoUection by having rather smaUer 
thecae ; but we can perceive no other distinction. The theca is perfectly straight, and nodding (not cemu- 
ous) by the curvature of the top of the seta. 
2. Hypnum fuscescens ; caule vage ramoso laxe caespitoso prostrate, foliis distiebis sub- 
