ICONKS MUSCORUM. 67 



ORTHOTRICIIUM SORDIDUM, Sulliv. cC Lesqx. 



Tab. 49. 



Plants Immilcs, laxe caespitosae, sordiclc vel fusco-virides. 



Caulis 6-8 liiicas altiis, parum robiistus, a;que dense foliosiis. 



Folia eoiiferta, inferiie patentia, superiie suberecta, lingidato- 

 lanccolata, modice carinato-costata, sensim loiigius acuta, mar- 

 giiie reflexa vel semi-revoluta, siiperne irregiilariter qiiadrato- 

 areolata et subpapillosa ; cellulis basilaribus quadrangularibiis, 

 medianis elongatis linearibus. 



Flores monoici : masculi gemmacei, in peridiaBtio axillares, 

 sessiles vel pedicellati, numerosi. 



Capsula iramersa, obovata, in pedicellum brevissimum longe 

 defliiens, late 8 striata, sicca plicato-costala, ore dilatata ; peri- 

 stomii dentibus bigeminatis superne in axi fenestratis ; ciliis 

 8 subasquilongis ; operculo a basi convexa attenuato ; calyptra 

 subpilosa. 



Orthotrichdm SORDIDUM, SiiUiv. & Lesqx. in Austin, Musci Appalacli. 

 No. 1G8. 



Hab. On trees, Massachusetts, Lesquerevx, James. State of 

 New York, Austin. Especially common in wooded swamps. 



TAB 49. — Ortiiotrichum sordidum. 



1. Plantas naturali mngnitudine. 



2. Pars plantiE fructiferaj. 



3. Folia. 



4. Eorumdem sectio transversalis. 



5. Areolatio baseos et apicis folii. 



6. Capsula operculata et flores. 



7. Capsula vacua. 



8. Cah'jjtra. 



9. Operculum. 



10. Pars peristoinii et capsular. 



11. Cilium. 



12. Gemma mascula, antheridium, et paraphysis. 



13. Areolatio capsula?. 



