100 ICONES MUSCORUM. 



peculiarity of this species is the change which takes place in its 

 foliage, its vernal leaves being replaced in summer by others of 

 a different size, form, and texture. 



TAB. 59, 60. — Foxtinalis biformis. 



1. Planta vernalis. 



2. Pars ejusdem ad asstivalem transiens. 



3. Planta aestivalis, naturali magnitudine. 



4. Pars planta? masculae. 



5. Flos femineus. 



6. Idem periebaetialibus exterioribus exsectis. 



7. Folia pericbaetialia. 



8. 9. Flores masculi. 



10. Folium perigoniale. 



11. Antberidium. 



12. 13, 14, 15. Folia plants? vernalis. 

 16, 17, 18, 19. Areolatio folii vernalis. 



20. Sectiones transversales ejusdem. 



21, 22, 23. Folia plantae aestivalis. 



24. Capsula operculata et calyptrata in perichaetialibus immersa. 



25. Eadem sine calyptra. 



26. Eadem deoperculata. 



27. Capsula deoperculata cum ramulo perichaetiali. 



28. Folium pericbaetiale. 



29. Basis capsulae cum pedicello e ramulo pericbaetiali extracto. 



30. Peristoma particula. 



31. Operculum. 



32. Calyptra. 



