384. FLORA VITIENSIS. 
+++ Folia tetrasticha. 
V. Dreranopnyitum, Rich. in Hook, Muse. Exot. Folia bifarie compressa, falciformi-curvata, 
lana. 
: L. D. semilimbatum, Mitt. Linn. Soe. Journ, vol, x. p. 194, t. 5. E; caules in cespitem aggregati, 
dichotome divisi, erecti?; folia distiche compressa, nervo rufo in mucronem brevissimum excurrente, 
lamina folii latere superiore (i. e. caulis apicem versus) ambitu semiorbiculari, limbo ecartilagineo incrassato 
rufo superne subcrenulato integerrimove, fere ad apicem usque continuo marginata, lamina latere inferiore 
multo angustiore immarginata, apice subcrenata, basin versus angustata et decurrente (ambitu igitur folii 
ovali-oblongo acuto, nervo uno latere propinquiore) ; cellule quadrate rotundateque, firme, pellucide, leves : 
folia pericheetialia magis oblonga, acutiora, ceterum caulinis similia—Samoa, Tutuila (Powell! n, 135),—- 
Very much smaller than the Equatorial American D. fulowm, Rich, ; but, so far as can be judged from the 
specimens without fruit, closely allied and, in all probability, congeneric with it. 
** Flores in ramulo brevissimo basilari. 
VI. Rutzocontwm, Brid. vol. ii. p. 664, Caules erecti, subsimplices, rarius ramosi, Folia undique 
equalia vel compressa, versus apices caulium decrescentia, Theca longe pedunculata, peristomio perfecto, 
* Pyrrhobrywn, Mitt, Linn. Soc. Journ. vol. x.—Folia undique inserta, rigida, cellulis densis 
rotundis areolata. Theca plicata. 
1. R. spiniforme, L. (Hypnum) ; folia angustissime lineari-lanceolata, nervo percurrente, dorso dentato, 
margine duplicato-serrata, perichetialia ovato-subulata simpliciter serrulata ; theca oblonga, operculo brevi- 
rostro, peristomio interno processibus quam dentes brevioribus in membrana fere ad eorum medium ex- 
serta impositis, ciliis obsoletis—Samoa, Upolu, on trees (1000-2000 feet) (Powell! n. 90); Sandwich Islands 
(Douglas! n, 60),—Possibly distinct from the widely-distributed P. spiniforme, so common in tropical 
America, 
2. R. pungens, Sull. Proceed. Amer. Acad. of Arts and Sc. vol. iii. ; dioicum ; cespite denso hispido e viridi 
spadiceo; caulibus bi-triuncialibus basi fructiferis erectiusculis simplicibus inferne tomento atropurpureo 
dense vestitis; foliis laxiuscule dispositis patenti-divergentibus carinato-concavis semiuncialibus (arista in- 
clusa) strictiusculis rigidis pungentibus elliptico-lanceolatis, costa valida subtereti in aristam dorso et laterihus 
grosse dentatam lamina quintuplo longiorem excurrente instructis, basi valde imerassatis, e cellulis minutis 
densis subquadratis compositis, margine duplicato-dentato vel potius bilamelloso, lamellis dentatis peri- 
chietiis radicalibus brevissime stipitatis; foliis perichatialibus exterioribus lanceolatis dentatis, interioribus 
oblongis integerrimis, omnibus laxius reticulatis basi vaginantibus costa excurrente valida dentata longis- 
sime aristatis; archegoniis longiusculis numerosis (40-50) copiose paraphysatis, paraphysibus 7—10-septatis 
archegonia paululum superantibus.—Sull. 1. e—Hawaii district of Puna on the south-west coast (Amer. 
Exped.).—This must be considerably larger than any other species yet known. 
3. R. setoswm, Mitt. Journ. of the Proceed. Linn, Soc. 1868, p. 174; dioicum; folia in ramis sterilibus 
patentia, recta subsecundave, apicalia erecta appressa, a basi sensim subulato-angustata, elongata, setacea, 
rigida, neryo crasso percurrente, superne dorso dentato, margine incrassata, basi integerrima superne bre- 
viter duplicato-dentata, a medio usque ad apicem dentibus validioribus simplicibus serrata, cellulis parvis 
rotundis limitibus latis; perichetium in ramo brevi, foltis a basi parva ovata longe anguste subulata curvata, 
nervo excurrente marginibusque superne dentatis. Habitus R. spiniformis.—Samoa, Upolu, on trees on 
the way to Lanutoo, 2000 ft, (Powell! n. 11). In size, mode of growth, and in the colour of its foliage, like 
P. spiniforme, but with leaves scareely half as wide, more bristle-like and rigid; the teeth towards the apex 
of the leaf are evidently a continuation of the margin, so that the nerve is not terete and excurrent as is 
said to be the case in P. pungens, which must also be a much larger Moss. 
** Photinophyllum, Mitt. Linn. Soe. Journ. vol, x.—Folia undique inserta, cellulis majusculis pellucidis 
areolata. Theea levis. 
4. f. subbasilare, Hook. Muse. Exot, t. 10 (Hypnum) ; caulis erectus ; folia patentia oblongo-lanceolata 
planiuscula nervo infra apicem evanido, marginibus superioribus, denticulis simplicibus serratis, cellulis 
oblongis pellucidis parietibus angustissimis, perichetialia lanceolata acuminata; theca in pedunculo elongato 
eylindracea, horizontalis nutansve, opereulo conieo.—Samoa, Tutuila (Powell!). Far different from the 
species of the preceding section in its pellucid, loosely areolate but firm leaves. 
Tribus VII. SKITOPHYLLEZ.— Lolia verticalia margine inferiore in caulem descendente integro, 
supervore basi fisso caulem equitante. 
I. Fisstpuns, Hedw. Caulis simplex, abbrevi be Aree bee Bt 
, , HLedw. x, abbreviatus vel elongatus ramosusque, Folia bifariam equitantia, 
carina late alata foliiformi, Flores terminales, laterales vel basilares. Theea levis, erecta vel a elinabae 
