70 ICONES MUSCORUM. 



the monoicous inflorescence of Q-. calyptrata furnish the essen- 

 tial distinctive characters. 



Grimmia longirostris, Hook. (Muse. Exot. t. 62), from the 

 Andes of South America, appears to be another very nearly 

 related species, differing mainly in its annulate capsule and the 

 long rostrum of its operculum. 



TAB. 44. — Grimmia calyptrata. 

 1. Plantae naturalimagnitudine, 

 '2. Ramus fructifer. 

 3, 4. Folia caulina. 



5. Folii rete basilare. 



6. Ejusdem rote apicale. 



7. Pars pili. 



8. 9. Sectiones transversales folii. 



10. Capsula calyptrata cum folio perigoniali. 



11. Capsula? opereulata\ 



1 2. Capsula deoperculata sicca. 



13. Particula peristomii. 



14. Dens peristomii a latere visus. 



15. Ejusdem particula apicalis. 



16. Calyptra (false depicta). 



17. Vaginula membranula tubiformi adaucta. 



18. Flos masculus et perigoniale antheridia inclir 



