ACOTYLEDONES. 239 



Desc. Miiscus csespitosus, semuncialis. Caules breves, 

 dense foliati, sgepius indivisi, quandoque parum ramosi! 

 Folia mucrone brevissirao, minute areolata, marginibus 

 anguste revolutis, nervo valido, siccitate adpressa et parum 

 torta. Seta caiile longior, Isevis, fusca. Capsula Isevis, Eequi- 

 latera. Operculum conicum, aciitmn, paolo inclinans, capsula 

 dimidio brevius, tenuissime spiraliter striatum. Peristomium 

 album, dentibus 32, filiformibus, per paria approximatis, 

 dimidioque inferiore trabeculis connexis, supra distinctis, 

 apicibus parum tortis. Calyptra Igevis. 



Ohs. Inter Barbulam et Didymodon media. 



S7. Syntrichia kuralis, Weh. et Mohr fasch. p. 215. 

 Voit mns. herbip. p. 52. Brid. manf. p. 98. 



Tortula riiralis, Smith brit. 3, p. 1254. Fn^l. bot. 2070. 

 Turner muse. Inbern. p. 50. Bw. muse. suec. p. 39. 

 Selm-aegr. suppl 1, sect. I, p. 137. Wahlenb. carpat. p. 

 838. Muse. brit. p. 31, t. 12. Hooker scot. par. 2, p. 

 127. Richardson in Franklin s journ. p. Ibh. 



Barbula ruralis, Hedw. sp. muse. p. 121. Wahlenb. lapp. 

 318. 



Obs. Specimina duo tantum et sine fructificatione. 



88. Syxtkichia mucronifolia, caule ramoso, foliis 

 ovato-oblongis siccitate adpressis : pilo integerrimo latitudine 

 folii breviore, capsula cylindracea inasquilatera erecta duplo 

 longiore ; operculo subulato-conico. 



Tortula mucronifolia, Schwaegr. suppl. 1, sect. 1, p. 130, 

 f. 35? TFahlenb. lapp. p. 317? 



Desc. Muscus v. csespitosus v. aliis intermistus. Caules 

 erecti, breves, semper ramosi, ramis fastigiatis, dense foliati. 

 Folia concava, marginibus integerriniis, 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, Isevis. Operculum badium, per lentem pluries 

 augentem spiraliter striatum, dimidium capsulae vix sequans. 



