4(1 ICONES MUSCORUM. 



a strongly dentate and broad pellucid border. The protuberant 

 cells of the exterior wall of the dry capsule also furnish a good 

 distinctive character. 



TAB. 25. — Fissidens Ravenelii. 



1. Plantae Tiaturali magnitudine. 



2, 3. Plantae femineae. 



4. Plantae niascula?. 



5. Planta sterilis. 



6. Folia caulina et perichaetialia. 



7. Folium caulis inBmum. 



8. (False 10 insculp.) sectio transversalis folii. 



9. Particula folii floralis duplicaturae marginem ostendens. 



10. Areolatio folii apicis. 



11, 12. Capsulae operculatae. 



13. Capsula deoperculata. 



14. Pars peristomii. 



15. Eadem verticaliter secta. 



16. 17. Opercula. 



18. Calyptra. 



19. Antheridia. 



20. 21. Folia perigonialia. 

 22. Folium perichsetiale. 



