124 ICONES MUSCORUM. 



A com inoii and variable species, very like Leskea nervosa, 

 Ml/riii, of which only sterile specimens have been found in this 

 country, on the mountains of New England. In L. nervosa 

 the leaves have a longer and more narrow acumination ; the 

 inflorescence also is different, being dioicous. 



TAB. 77. — Leskea obscura. 



1. Plantse naturcdi magnitudine. 



2. Ramus. 



3. Pars caulis defoliates, cum perichaetio et floribus masculis. 



4. 5, 6, 7, 8, 9. Folia. 



10. Folium areolationem monstrans. 



11, 12. Sectiones transversales folii. 

 13, 14. Capsulae. 



15. Operculum et calyptra. 

 1G. Calyptra. 



17. Operculum. 



18. Particula peristomii. 



19. Sectio verticalis ejusdem. 



20. Flos masculus. 



21. 22. Folia perigonialia. 

 23. Autheridium. 



