374 THE CRYPTOGAMIC FLORA OF KENT. 



L. CONCENTRICA, DuV. 



Ou calcareous rocks. E. B. 246. 

 Brastead. 



Graphidiei. 



Graphis elegans {Sm.) Opegrapha (E. B.) 



On holly and other trees ; rather rare. E. B. 1812. 

 Tiinbridge Wells, Mr. Thompson ; Leight. Lich. Fl. Witley 

 Scrubs, near Sevenoaks; Toy's Hill, in very fine con- 

 dition. 

 Known by its longitudinally-fuiTOwed lirellge. 



G. SCRIPTA, Ach. 



On coppice oaks, &c. ; frequent. 



Wye ; Ide Hill, and Brastead Chart, near Sevenoaks. 

 Var. serpentina, Ach. Leight. Br. Graph., t. 6., f. 21. 



Dunton Green. 

 The variety serpentina may be known by its obtuse lirellaB from 

 G. imista, which it somewhat resembles. 



[Litlwgrajjha dendrographa and Graphis dendritica should be 

 looked for in Kent, the former on old elms or oaks, the latter on 

 holly and other treei in damp woods in hilly districts.] 



Opegrapha herpetica, Ach. 



On trees, often near the roots, usually in shady places. 



E.B. 1789. 

 Brastead Chart ; Wye. 

 May usually be recognised by the small lirellaB and the reddish 

 tint of the thallus, which becomes of a deeper red when touched 

 with solution of potash. 



0. ATRA, Pers. 



On trees; frequent. Leight. Br. Graph., t. 5, f. 11. 



Edenbridge. 

 Occurs in white small patches with the lirellae crowded towards 

 the centre. May be mistaken for Opegrapha viridis, which has a 

 minutely-cracked thallus, with rounded apothecia mixed with the 

 linear ones, and spores 13-septate. 



0. sAXicoLA, Ach. 



Var. gyrocarpa (Zw.) On greensand rocks ; not common. Fant 



Woods, near Maidstone. 

 Var. Persoonii, Ach. On the rocks on Tunbridge Wells, and 



Eusthall Common ; Forster Fl. Tunhr. 

 [0. confiuens should be looked for on the rocks near the sea at 

 Sandgate.] 



0. VARiA, Pers. 



Var. notha. On old trees. E.B. 1890. In the wood behind 



the Sussex Tavern, Tunbridge Wells ; Forster Fl. Tunhr. 

 Trees near Eynsford Viaduct ; Lullingstone Park, near Shoreham. 



0. LYNCEA {Sm.) 



On old oaks, not common ; rare in Kent. 



