7. ORT1IOTRICHUM, Hedic.
Peristomium simplex v. duplex, rarius nullum ; exterius dentes triginta duo, geminatim v. bigeminatim coadunati, (liinc quasi octo v. sedecim apparent) ; interim ciliae octo, aequales, v. sedecim, alternis brevioribus, ereetis v. horizontaliter patentibus. Calyptra campamdata, costata, basi lacera v. crenata, plerumque pilosa. Theca erecta, sequalis, exanuulata, tandem sulcata, in setam superne incrassatam gradatim attenuata.
1. Oethotrichuji cramfolium, Hook. fil. et Wils. ; caule brevi subrarnoso, foliis erecto-patentibus lanceolato-subulatis obtusis carnosis nervo crasso subcontinuo, theca breviter exserta ppiforrni leevi, peristomii dentibus sedecim, ciliis nullis, calyptra glabra. (Tab. LVIL Fig. YIII.)
Tar. /3 ; foliis longioribus, theca breviore foliis immersa. Hab. Lord Auckland's group and Campbell's Island; on rocks and stones immediately above highwater mark. Var. /3, Campbell's Island, with the following species.
Caides pulvinati, 2-4 Hn. longi. Folia suberecta, erassa, coriacea, supra plana, apice subobtusa, marginibus basi inflexis, nervo crasso infra apicem evanido, siccitate paulo incurva, olivacea v. fusco-lutea, demum nigricantia, suprema Hnearia, basi latiora, Infloresceutia dioica? Fl.masc. gemmifonnis, terminalis. Seta sub liueam longa, valida; vaginula oblonga. Theca erecta, pyrifonnis, v. subturbinata, fusco-lutea, collo brevi, siccitate subeybndracea. Peristoma dentes liberi, siccitate erecti v. reflexi, lutei. Spora majuscula?, subrotunda?, rufo-olivaeeae. Operculum convexum, rostello recto, thecae longitud. Calyptra plicata, glabra, rufo-brunnea, basi octofida.
Perhaps allied to the 0. psychrophilum, Montague (Ann. So. Nat., vol. ix. p. 52); but the leaves are more erect with their margins not refiexed, the capsule even, of a thicker texture, and there is no inner peristome. It bears some resemblance to the 0. Magellanicum, Mont., from which the same characters will also distinguish it. The dry foliage is of an almost horny consistence.
Plate LVIL Fig. VIII. — 1, a specimen of the natural she ; 2, a portion of stem and theca ; 3 and 4, leaves ; 5, transverse section of ditto; 6, teeth; 7, sporules ; 8, calyptra : — magnified.
2. OitTHOTKiCHUJi aiigustifoUum, Hook. fil. et Wils.j caule brevi subramoso, foliis ereetis anguste lineari-subulatis acutiusculis carnosis nervo contmuo, theca subsessili immersa elliptica, operculo rostellato, peristomii simplicis dentibus sedecim. (Tab. LVIL Fig. VII.)
Hab. Campbell's Island; on rocks at an elevation of 1200-1100 feet.
Caules pulvinati, 2-3 lin. longi, luridi, rigidi, ramis subterminalibus abbreviates. Folia suberecta, conferta, elongata, stricta, opaea, subcarnosa, supra plana, nervo crasso continuo, siccitate subinciirva, atro-viridia ; pericJiatialia longiora, lanceolata, acuminata, superne attenuata, subsecunda. Seta brevissima. Theca elliptico-ovata, parva, pallide fusea, ore majusculo. Dentes couniventes, pallide ferruginei, siccitate reflexi. Spora majusculaj. Operculum basi convexum, rostello brevi recto. Calyptra non visa.
Allied to the former species, but with larger, much narrower and amiost setaceous leaves ; the capsule also is smaller and hidden amongst the foliage.
Plate LVIL Fig. VII. — 1, a tuft of the natural size; 2, branch; 3 and 4, leaves; 5, theca and seta: — magnified.
8. MACROMITRIUM, Brid.
Peristomium simplex v. duplex ; exterius dentes sedecim, lanccolati, plus minusve geminatim connexi ; interius membrana apice lacera, multiiida. Calyptra conica, glabra v. pilosa, basi in lacinias plurimas sequilongas fissa. Theca sequalis, exannulata.
