176 Field Columbian Museum — Botany, Vol. i. 



P A R M E L I E ^. 



PARMELIA Ach. 



P. perlata (Linn.) Ach. 



On Acer nibrum, and on sandstone boulders {Nuttall, 848). 



P. Borreri Turn. 



On oak, alt. 1,850 ft. {Nuttall, 1032). 



P. Borreri rudecta Tuck. 



On Robinia Pseudacacia, Monongalia Co., along Falling Run 

 {Millspaiigh, 1 531). 



P. colpodes (Ach.) Nyl. 



On oak, alt. 1,850 ft. {Nuttall, 1141). 



P. olivacea (L. ) Ach. 



On Liriodendron log newiy felled, Monongalia Co., Falling 

 Run {Alillspaugh, 1343). 



P. caperata (L.) Ach. 



Monongalia Co., on sandstone rocks, and base of beech. Fall- 

 ing Run {Millspaiigh, 1283). 



PHYSCIA DC. 

 P. lucomela (L. ) Michx. 



Mercer Co., with moss on wet limestone ledge, Beaver Spring 



{Millspaiigh, 1539). 



P. ciliaris (Linn.) DC. 



On mossy sandstone rocks {Nuttall, 106^). , 



P. ciliaris crinalis Schaer. 



On moss, alt. 1,850 ft. {A^iittall, 1042). 



P. aquila (Ach.) Nyl. 



On rocks and on moss {iViittall, 1035). 



P. stellaris (Linn.) Tuck. 



On sandstone rock {Nuttall, 872). 



P. stellaris aipolia Nyl. 



On sandstone rock {Nuttall, 1778). 



U M B I L I C A R I iE. 



UMBILICARL^, Hoffm. 

 XJ. Dillenii Tuck. 



On sandstone rocks {Nuttall, 823). 



U. Pennsylvanica Hoffm. 



On sandstone rocks {Nuttall, 849). 



TJ. pustulata (Linn.) Hoffm. 



On faces of sandstone cliffs {Nuttall, 855). 



