836 THE CKYPTOGAMIC FLOEA OF KENT. 



P. OBSCURA {Ehrh.) FarmeUa cijcloselis, Ach. (Jenner Fl. Tunbr.). 

 On elm trees, &c. ; common. E. B. 1942. 

 On trees on Tuubridge Wells Common. 

 Otford ; Wye ; Cliilstone Park. 

 Var. virella (Acli.). E. B. t. 1696 (two upper figiu'es). On trees. 

 Bexley; Wrotham ; Shoreliam ; Chelsfield; Boxley, near 

 Maidstone ; Wye. 

 Var. adglutinata (Elk.). On old elm trees, &c. Lullingstone Park, 

 Shoreliam ; Broome Park, near Kits Coty House, Maidstone. 

 Not unfrequently in fruit. 



P. STELLAEIS (L.). 



On trees and bushes; not very common. E. B. t. 1697. 

 On dwarfed blackthorn bushes. Lydd Beach. 

 Var. tenella (Scop.). E. B. t. 1351. On trees and bushes; very 

 common. Sidcup ; Brastead ; Westerham ; Wrotham ; Chels- 

 field ; Penshurst ; Maidstone ; Broome Park ; Postling ; 

 Willesboro' Lees; Beechborough. 

 Var. cmsia (Hoffm.) Parmelia (E. B.). On roofs, walls, &c.; 

 rare. E. B. 1052. On slate roofs at Pembury; Jenner Fl. 

 Tunhr. Boofs near Plaxtol ; Howse! 



P. EROSA, Borr. 



On rocks and trees; not common. E. B. Supplt. t. 2807. 



On trees on Tunbridge Wells Common ; Penshurst Park, &c. ; 

 Jeriner Fl. Tunhr. 



On trees. Dimton Green, Howse! Walls of Egerton chm'chyard. 



Known by its intricate, loosely-attached, minutely crenate, 

 somewhat powdery fronds. I have never seen this species in fruit. 



P. ASTROiDEA [Clem.). Parmelia Clementi (Jenner Fl. Tunbr.). 



On trees; rare. E. B. 1779. 



On trees on Tunbridge Wells Common ; Jenner Fl. Tunhr. 



In Broome Park, very fine and abundantly in fruit. 



Known from the last by the closely appressed thallus, 

 almost entu'ely granulate in the centre, and leafy only at the 

 circumference. 



Lecanorei. 



Pi.NNARiA NIGRA [Hucls.) lAchen niger, E. B. 



On exposed chalk stones in damp places ; not common. 



E. B. 1161. 

 Wrotham ; Undercliff, Folkestone. 



P. PLUMBEA, {Liglitf.) Lichen 2} lumheus,'Ej. B. 



Usually found on trees and rocks in hedge-banks, &c. ; very 



rare in Kent. (E. B. 353 ?) Lightf. Fl. Scot., t. 26. 

 On stunted blackthorn bushes almost level with the ground. 



Lydd Beach. Noticed in one spot only, but there were 



several well-fruited patches of the plant. 



Squamaria saxicola, (Poll.) Lichen saxicola, 'El. 'B. 

 On rocks and boulders ; rare in Kent. E. B. 1695. 

 On a sandstone boulder by the roadside near Otford. 



