Botany. 223 



LECANORA citrina, Ach. On walls, rocks, etc. Bexley. 

 L. albella, Nyl. On trees. Bexley. 



L. allophana, Nyl. On trees ; very common. Bexley, Blackheath 

 (FJ. Met., 1836). 



L. atra, Ach. On walls, rocks, etc. ; common. Bexley. 



L. aurantiaea, Nyl. On ash and other trees ; rather rare in Kent. 

 Chislehurst, Halstead. 



L. cerina, Ach. On old wooden gates and rails ; frequent. On 

 trees in Lullingstone Park. 



L. exigua, Nyl. On old oaks, etc. Chelsfield. 



L. galactina, Ach. On walls and rocks about farms, etc. ;"common. 



L. pallescens, Nyl. On flints, Shoreham. 



L. parisiensis, Nyl. On trees. Chelsfield, Shoreham. 



L. pyracea, Ach. (ULMICOLA, DC.). On elm trees in parks, etc., 

 especially where moisture has formed a track down the 

 trunk ; frequent. Eynsford, Lullingstone Park. 



L. subfusca, Nyl. On trees ; common everywhere. Bexley. 



L. symmicta, Ach. On palings near railway station, Shoreham 



L. varia, Ach. On trees, palings, walls, etc. ; common. Green- 



hithe. 



PERTUSARIA communis, DC. On trees ; frequent. 

 P. faginea, L. On trees, gates, flints ; very common. Joyden's 



Wood ; Shoreham (on flints and trees). 



P. fallax, Pers. On trees ; v. com. Paul's Cia,y Common. Howse. 

 P. globulifera, Nyl. On large trees ; very common. 



F. leioplaca, Schser. On young oaks in woods and coppices ; fre- 

 quent. 



P. velata, Nyl. On trees in damp places ; comparatively common 

 in Kent, though considered rare in other places. 



PHLYCTIS agelaea, Kcerb. On trees in woods ; common. 

 P. argena, Koerb. On trees j frequent. Joyden's Wood. 



URCEOLARIA scruposa, Ach. On old walls, mosses, rocks, etc. ; 

 common. Wall near Hayes Common. 



LECIDEA albo-atra, Hoffm. On old elm-trees ; frequent. Near 

 Eynsford Station. 



L. aromatica, Sm. On old walls ; frequent. 



L. calcivora, Ehrh. On chalk and calcareous rocks. Charlton 

 Wood chalk-pit (Fl. Met., 1836, and Holmes). 



L. canescens, Dicks. On trees, rocks, walls, etc. Bexley. 



