FLORA VITIENSIS. 409 
eoalitis.—Island of Wakaya, Viti (Milue!), Also i 
: ’ 1). soimS 1 < 
roots of trees in shady places (10-50 feet) (Powell ! ae Islands, Tutuila, on stones, rocks, and 
In size and mode of i : : . 
those of Dhuidium. growth this agrees nearly with Pelekium velatum, but its fruit and calyptra are 
2, NEMATODONTES.— Peristomii dentes e filis liberis vel in processus dentiformes coalitis composiii, 
Trisus XI. POLYTRICHER. Peristomii dentes breves, apicibus ad columelle apicem 
in tympani formam expansum adhzrentibus. 

dod ene ets ee eer oatnes creeping, subterraneous rooting stem, fram which arise 
re , Pp y rarely branched, and subdendroid stiff stems, clothed with frequently firm and 
rigid leaves, scarcely altered in drying; in some species, however, they are soft and curled when dry. The 
fruit arises from the apex of the stem, and is usually borne on a stout seta, The capsule is either cylin- 
drical and smooth, or more or less strongly angled, even sometimes cubical, The calyptra is almost naked 
or more or less completely covered and hiddeu by appressed hairs, 
XXY. Pogonatum, brid. Theca cylindracea, levis vel indistincte plicata. Calyptraindumento 
villoso obtecta. 
P. aloides, Hedw., is confined to the Hawaiian Islands (Gaudichaud), 
1, P. Vitiense (sp. nov.), Mitt.; caulis elongatus, simplex vel innovans; folia subimbricata, 
a basi latiore erecta pellucida, cellulis inferioribus oblongis, superioribus abbreviatis transverse 
oblongisqne areolata, inde in folium oblongum patenti-incurvam acutum planiusculum intus lamellis 
brevibus ubique obtectum producta, margine apicem versus denticulis paucis serrulata, perichetialia 
longiora, a basi erecta longiore latioreque late ovali ceterum caulinis similia; theea in pedunculo 
elongato, breviter oblonga, inclinata vel horizontalis, scaberrima, 4-carinata; calyptra indumento 
pallide fulvo appresso, thecam totam obtegens,—Viti (Milne !). 
Caulis 12-3-uncialis. Folia viridia, sicea subnigra. Pedunculus }-l-uncialis. Habitus P, Teysmanat, 
Dozy et Molk. similis, foliis autem latioribus—Three or four barren stems of a Pogonatum were gathered in 
Tutuila by Mr. Powell, but, although appearing to come very near the species above described, the leaves 
are narrower and longer. : 
Tab. 97, fig. 1. Stems of the natural size; fig. 2, a leaf, with transverse section, magnified, 
Trinus XII. BUXBAUMI.—Peristomium duplex, externum imperfectum vel subobsoletum, 
internum e membrana conoidea indivisa apice truncata, plicis extus acutis. 
XXVI. Diphyscium, Mohr. Caulis humilis, interdum fere nullus. Folia ligulata, periche- 
tialia magna diversiformia. Theca magna, subovata, obliqua, ad operculum erectum ascendens, 
1, D. submarginatum, (sp. nov.) Mitt. ; caulis brevis; folia patentia, spathulato-lgulata, 
margine cellulis minoribus ‘nerassatis fuscescentioribus sublimbata subdenticulata, cellulis parvis 
rotundatis obsenriusculis areolata, pericheetialia a basi anguste subulata, nervo excurrente sublevi, 
sensim attenuata.— Viti (Seemann !). 
Three plants only, adhering to the rootlets of a specimen of Thwidium ramentosum. 
1—Folia cellulis biformibus areolata. 
_Caules erecti, simplices vel furcati, ramus simplicibus adscendentibus 
ule egredientibus vestitus. Folia apice spe 
szepius fibro repletis, parietibus e 
B. HETERODICTY 
Trrsus XIII. SPHAGNES. 
vis in fasciculos confertis undique € ca 
vel recur 
cellulis amplis poris pertusis, 
dissilientia, angustissime limbata, 
