[00NE8 MU8C0RUM. 65 



PTYCHOMITRIUM DRUMMONDII, Br. 8r 8ch. 



Tab. 40. 



P. incurvo simillimum ; differt tamen statura paulum majore, 

 foliis patentioribus rnagis acutis apice obtuse dentato-serratis, 

 peristomii dentibus profunde infra capsulas orificium insertis 

 latioribus brevioribus crebrius articulatis externa facie trabecu- 

 latis apice irregulariter fissis per paria approximatis, annuli ab- 

 sentia, sporis majoribus, etc. 



Ptychomitrium Drummondii, (Hook. & Wils.,) Br. & Sch. ; Sulliv. Mosses 



U. States, p. 36. 

 Grimmia Drummondii, Hook. & Wils. in Hook. Jour. Bot. 1841, p. 90, t. 3. 

 Brachysteleum Drummondii, C. Mull. Synop. Muse. 1, p. 770. 



Hab. On trees, Southern States, near the coast. — Not un- 

 common. 



TAB. 40. — Ptychomitrium Drummondii. 



1 . Plantse naturali magnitudine. 



2. Planta fertilis. 



3. 4, 5. Folia caulina. 



6. Sectio transversalis folii. 



7. Areolatio folii baseos. 



8. Eadem folii apicis. 



9. Capsula operculata. 



10. Dentes peristomii. 



11. Dens peristomii verticaliter sectus. 



12. Apex ejusdem. 



13. Calyptra. 



14. Flos masculus. 



15. Folium perigoniale. 



16. Antheridium cum paraphysi. 



