378 FLORA VITIENSIS. 
1. O. pendulum, Linn. Sp. Pl. ed. 2. p. 1518; rhizomate subgloboso; frondibus sessilibus, 
solitaribus v. fasciculatis, fascieformibus, planis, carnosulis, indivisis v. sæpius versus apicem dicho- 
tome divisis, basi longissima angustatis; spica fructifera, in parte inferiore frondis obveniente soli- 
taria rarissime gemina, linearis, obtusa.— Ophioderma pendula, Endl. Gen. Pl. p. 66.—Viti (Seemann ! 
n. 794; Harvey! Milne! Græffe!). Also from Aneitum, New Hebrides (M'Gillivray !), Eromanga 
(M‘Gillivray !), Tahiti (Nelson! Barclay! n. 1335), and Oahu (Nelson! Barclay ! п. 1233). 
Orpo СУПІ. MUSCI. 
(AUCTORE W. MITTEN.) 
A. HOMODICTYI.—Foliorum areolatio e cellulis homomorphis. 
1. ARTHRODONTES.—Peristomii dentes 16 vel (dentibus per paria coalitis) 8, vel (dentibus 
usque ad basin fissis) 32, pluries transversim articulati, e cellularum stratis binis compositi. 
* Folia in plano horizontali, rarius verticali expansa. 
T Caulis erectus, procumbens vel repens, eæ apice vel ex apicibus ramorum elongatorum rarissime 
abbreviatorum fertilis. 
The following tribes of Polynesian Mosses have not yet been found represented in Viti, viz :— 
"Tribus I. Свтммтех.— Folia viridia, brevia, obscura, sepe hyalino-pilifera, nervo haud dilatato, cellulis basi- 
laribus haud coloratis. Peristomii dentes integri, vel sepius irregulariter fissi, 
I. Grina, Ehrh. Beitr. vol. i. p. 176. Caules breves vel elongati, dichotomi vel fasciculatim ramosi, 
вере pulvinatim cespitantes. Folia cellulis densis obscuris areolata. Thecæ in pedunculo breviusculo recto 
vel curvato leves vel plicatæ, æquales, peristomii dentibus 16 solidis vel divisis pertusisve rarius nullis, calyp- 
tris mitriformibus vel dimidiatis. Musci rupestres, ut plurimum cæspites canos formantes.—An extensive 
genus, of which the greater number of the species are found in the northern hemisphere, and prefer to grow 
on rocks or stones in very exposed situations. 
1. G. ovata, Web. et Mohr, Bryol. Europ. t. 17 et 18; monoica, compacte cæspitosa; caulis furcatus ; 
folia erecto-patentia, inferiora apice obtusa, superiora subulato-angustata cano-pilifera, margine uno latere 
recurvo, nervo percurrente carinata, cellulis basilaribus oblongis, lateralibus paucis rectangulis, superioribus 
parvis rotundis limitibus pellucidis, perichætialia erecta majora longius ineana ; pedunculus brevis, rectus, vix 
vel parum ultra apices foliorum perichætalium productus ; theca oblongo-ovalis, lævis, olivaceo-fusca, basi sub- 
callosa, operculo conico-rostrato, peristomii dentibus fissis perforatisve, calyptra lobata.—Sandwich Islands 
(Herb. Hooker !).— This species forms compact tufts of a greyish-green colour above from the white points 
of its leaves; the stems are seldom more than ineh in height, and below have the older foliage blackish. It 
is found nearly all over the world. 
П. GLYPHOMITRIUM, Brid. Meth. p. 30. Brachysteleum, Reichenb. Ptychomitrium, Bruch et Schimp. 
Caules pulvinatim cæspitantes. Folia canaliculata, firma, siccatione crispata, cellulis obscuris. Theca in 
peduneulo recto levis, rarissime subplieata, peristomii dentibus sæpius inzqualiter divisis ; ealyptra mitrifor- 
mis, plicis lævibus vel interdum dentatis. 
1. 6. Mülleri, Mitt. Linn. Soc. Journ. 1859; caulis humilis; folia a basi lata subquadrata superne 
paululum dilatata vaginante angustata patentia sublanceolata, apice obtuse acuta subcucullata, nervo sub- 
summo apice evanido carinata, integerrima, cellulis basi ad medium partis latioris oblongis rectangulatis, 
inde ad apicem usque paryis rotundis obscuris, perichætialia tria breviora ovata aeuminata; theca in pedun- 
culo 3-4-lineari ovalis, etate corrugata, operculo subulato subæquilongo, peristomio dentibus divisis vel 
pertusis, calyptra plicis levibus.—Lord Howe’s Island (Milne !).—A little more robust than the South 
African G. erispatum, Hook. Bot. Mise. 1830, t. 36. This species is found also in Australia, whence it was 
originally sent by Dr. F. von Müller, 
Tribus II. Torturez.— Folia viridia, obscura, cellulis inferioribus haud conspicue diversis.  Peristomium 
simplex, rarius duplex, dentibus sepe angustis elongatis tortis, interdum nullum. 
I. Wrrsna, Hedw. Fund. vol. ii. p. 90. Caulis ex apice fertilis. Folia viridia vel flavo-viridia, margine 
incurva, cellulis parvis obscuris areolata. Peristomium si adsit dentibus 8 vel 16, ad basin usque discretis, 
calyptra dimidiata parva.— Hyophila, Brid. vol. і. р. 760. 
