452 МК, H. N. DIXON ON SOME 
integerrima, ad basin. eoncavo-carinatam uno margine late fortiter reflexo, 
superne marginibus hie illie angustissime reflexis; costa perbrevis, obscura, 
tertiam partem. vel minus folii attingens, pro more lata, tenuis, in sectione 
transversa. angustissime plano-convera, e cellulis homogeneis angustissimis in- 
structa. Areolatio valde regulariter hevagonc-rhomboidea, prosenchymatosa, 
40-50 ш longa, 8-10 ш lata, saturate chlorophyllosa, parietibus. tenuibus, 
apice paullo brevior, cellule basilares in medio folio elongati, angustiores, 
ad angulos numerosze irregulariter sub-rectangulares, parietibus paullo 
erassioribus, siepe rufescentibus. 
Caules sepius. gemmipari, capitulum dense agglomeratum ei Aulacomnii 
androgynt similem nee autem stipitatum, folia suprema vix superanten 
gerentes ; дети numerosissime, breviter fusiforme vel anguste. clavate, 
articulate, e cellulis 4—6 ehlorophyllosis, in seriebus singulis. dispositis 
instructæ. Gemmæ sepe. quoque. nonnull in. foliorum superiorum axillis 
Inveniuntur. 
Dioica. (Flos masculus haud visus.) Perichætia sparsa, ad ramos lateralia, 
haud radicantia, 2 mm. longa ; bracte extern foliis caulinis subsimiles, 
interne 2-3 magne, convolutir, subobtuse nee acuminate : seta brevis, 
2-2'5 mm. longa, rufa ; theca parra, vix 2 mm. longa, erecta, symmetric, 
anguste elliptica, setate viridis, vel fusco-viridis, profunde e-plicata, operculo 
conico-rostellato, pallido. Calyptra haud visa. — Annulus male evolutus, 
persistens. Exothecit eellulze subquadratze angulis rotundatis vel irregulares, 
in seriebus longitudinalibus sepius dispositis, parietibus firmis, paullo 
incrassatis. 
Peristomium duplex, pallidum, parvum, sub orificio paullo insertum ; dentes 
externi circa 072 mm. longi, lineari-lanceolati, pallidi, sicci crispati, tenues, sat 
remote trabeculati (lamellis haud prominentibus), ad lineam mediam per- 
tenuem aliquando pertusi, ad infimam basin tantum (infra orificium) 
tenuissime transverse striolati, supra læves; endostomium sine membrana 
basilari conspicua e processibus tenuibus filiformibus articulatis, raro appendi- 
culatis, dentes haud æquantibus, instructum. Spori ad 32 ш. minute 
punctulati. 
Паб. On the bark of trees, supple jack, &e., in several localities in the 
neighbourhood of Mauriceville, Wairarapa, North T., 1909-1910 ; e. fr., 
summer, 1910-1911 ; leg. W. Gray (Nos. 81, 54, &e.). 
A very interesting and remarkable little plant. Until the fruit was 
detected—a few capsules only—by Mr. Gray, it was even doubtful whether its 
place was in the Acrocarpous or Pleurocarpous mosses; there is no distinct 
differentiation of a primary and secondary stem, the slightly branched stem 
growing more or less erect from the bark of the host plant. The capsules, 
however, showed by their deep plication and the peristome, with the pleuro- 
carpus inflorescence, that it must take its place among the Ptychomniacex, 
and near (Flyptothecium (G. gracile, Hampe, may be compared). Те 
