402 FLORA VITIENSIS. 
ciliisque tribus interpositis in membrana usque ad medium dentinm longitudinis exserta impositis.— 
Ovalau (Seemann! n. 845, Milne! n, 351), Also in Sandwich Islands (Herb. Hooker!), Samoa, 
Tutuila (Powell ! n, 111), Ceylon, and in the Malay Archipelago. 
Foliage green and shining, becoming in age straw-coloured and fulvous. 
XXIV. Thuidium, Schimp. Caulis procumbens ascendensye, interdum arcuatus, apicibus de- 
scendentibus radicantibusque, exinde prolifero-continuatus, paraphyllis obtectus, rarius nudus, ramis 
ramulisque bipinnatim dispositis bi-tripinnatus. Folia caulina qualia, ramea ramulinaque diversi- 
formia, inzqualia, cellulis elongatis vel abbreviatis, sepius papilliferis obscuris. Theca inclinata 
horizontalisve, rarissime erecta, peristomio perfecto vel ciliis interdum imperfectis obsoletisve. 
The following two species have not yet been gathered in Viti, viz.:—1. J. plicatum (sp. nov.), Mitt. ; 
caulis procumbens, irregulariter bipinuatus ; folia patentia, cordata, acuminata, plicata, breviuscula, margine 
inferne reflexa, superne minute crenulata, nervo sub apice eyanido, cellulis rotundatis obscuriuseulis papillis 
minutissimis brevissimis, ramea subcompressa patentia cordato-acuminata plicata, ramulina imbricata ovata 
acuta concava crenulata dorso papillosa, perivhztialia a basi lanceolata sensim Jonge attenuata serrulata; 
theca in pedunculo elongsto cylindracea inzqualis inclinata.—Sandwich Islands (Douglas! in Herb. Houker). 
—More slender than 7. Samoanum, and less regularly-branched than JZ! ramentosum. 2. P. erenulatum (ap. 
nov.), Mitt.; monoicum; caulis bipinnatus; folia patentia cordata subulato-acuminata, nervo sub apice 
eyanido, margine crenulata, inferne subrecurva, cellulis rotundatis obscuriusculis, ramea compressa ramu- 
hnaque ovata acuta nervo carinata crenulata, perichetialia longe subulato-attenuata subserrulata; theca 
in pedunculo elongato ovalis horizontalis, operculo subulato; peristomium internum ciliis binis inter se 
cohrrentibus trabeculatis—Sandwich Islands (Douglas! in Herb. Hooker 57).—Similar to Z minutulum, 
Hedw, Muse. Frond. 4, t. #4, 
1, T. ramentosum, Mitt. in Bonpl. 1861, p. 366 (Leskea) ; caulis arcuatus, proliferus; folia 
caulina a basi lata hastata cauli angustiore subulata, nervo percurrente, margine reflexa integerrima, 
ramea hastato-oyata acuminata, ramulina ovata incurva papillosa, margine ut in rameis crenulato- 
serrulata, nervo infra apicem abrupto, dorso prominente cristato, perichzetialia interiora in ramentis 
quamplurimis elongatis flexuosis intricatis serrulatis lacera.—Viti (Seemann ! inter 863). 
note like the Z. eymbifolium, Dozy et Molk. Bry. Javan. t. 221, from Java and India, but more 
slender, 
2. T. Samoanum, Mitt. Journ. of the Proceed. Linn, Soc, 1868, p. 186; caules procumbentes, 
erecti arcuatique, pinneeformiter bipinnati; folia caulina appressa a basi subtriangulari-ovata 
sensim In acuinen ligulatum obtusiusculum producta Ievia, nervo infra apicem evanido, margine 
erenulato, cellnlis rotundis, papillis fere obsoletis, perichsetialia interna a basi lata sensim angustata 
et in acumen elongatum loriforme flexuosum obtusum crenulatum producta, marginibus inferne ciliis 
pluribus elongatis angustis ciliata; theca in pedunculo elongato cylindracea, arcuata, horizontalis— 
Viti (Seemamm!). Also Solomon Islands, Guadaleamar (Milne!), Samoan Islands, Tutuila, and 
Manua, on large stones in gulleys (100-2000 feet) (Powell ! 105). 
Nearly allied, as so many of the species of this genus are, the present, although externally closely 
corresponding with 7. ramentosum, is well distinguished by its obtuse cauline leayes, 
3. T. erosulum, Mitt. Journ. of the Proceed. Linn. Soe. 1868, p. 186; monoicum; caulis 
repens, intricatus, bipinnatim ramosus ; folia patentia triangularia subulato-acuminata, nervo sub 
apice evanido, marginibus reflexis subintegerrimis, cellulis obscuris, papillis brevissimis; folia ramea 
ovata acuta, ramulinaque ovata obtusiuscula compressa, nervo pallido dorso scabro carinata, margi- 
nibus crenulatis, cellulis papillosis obscuris areolata, perichsetialia ovata superne denticulata exinde 
longe subulata anguste attenuata subintegerrima, neryis percurrentibus; pedunculus elongatus, 
seaber; theca oblonga, subhorizontalis, operculo subulato ; peristomium internum ciliis in unum 
