ACOTYLEDONES. 239
Desc. Muscus caespitosus, semuncialis. Caules breves, dense foliati, ssepius indivisi, quandoque paruin ramosi. FoJia mucronc brovissimo, minute areolata, marginil)as anguste revolutis, ncrvo valido, siccitatc adprcssa et pavum torta. Seta caule loiigior, Isevis, fusca. Ccqmda Isevis, aeqiii- latera. Opercul/nu coniciim, aciitum, paulo inclinans, capsula diniidiobrcvius, tenuissime spiraliter striatum. Ferisfomiuni album, dentibus 32, filiformibus, per paria approximatis, dimidioquc inferiore trabeculis connexis, supra distinctis, apicibus parum tortis. Calypira Ja^vis.
Obs. Inter Barbidam et Didymodon media.
87. Syntrichia ruraijs, Weh. et j\Iohr tasch. p. 215. Voit mus. lierhip. p. 52. Br id. mant, p. 98.
Tortula ruralis, Smith brit. 3, J9. 1254. En(jl bot, 2070. Turner wusc, liibern. p. 50. Sw. wnse. suec. p. 39. ScJnvaec/r. suppl 1, sect. \, p. 137. WaUlenb. carpat. p. 338. Muse. brit. p. 31, t. 12. Hoolcer scot. par. 2, p. 127. Richardson in Franklin s journ. p. lob.
Barbula ruralis, Iledw. sp. muse. p. 121. Wahlenb. lapp. 318. .
Obs. Specimina duo tantum et sine fructificatione.
88. Syntrichia mucronifolia, caule ramoso, foliis ovato-oblongis siccitate adpressis : pilo integerrimo latitudine folii breviore, capsula cylindracea inasquilatera erecta duplo longiore ; operculo subulato-conico.
Tortula mucronifolia, Sehicaegr. suppl. 1, sect. 1, ;?. 130, t 35? Wahlenb. lapp. p. 317?
Desc. Muscus v. csespitosus v. aliis intermistus. Ca?des erecti, breves, semper ramosi, rauiis fastigiatis, dense foliati. Folia concava, marginibus integerrimis, infra medium leviter recurvis, minute areolatis, areolis baseos paulo laxiori- bus, nervo valido in pilum integerrimum excurrente, ma- dore erecto-patentibus, siccitate imbricatis adpressis nee contortis, pilo parum flexo. Seta capsula baud duplo longior, concolor, siccitate tortilis. Capsula saturate castanea, laevis. Operculum badium, per lentem pluries augentem spiraliter striatum, dimidium rapsulnn vix aequans.
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