THE CRYPTOGAMIC FLORA OF KENT. 338 



leading features in the liclieu-flora of Lydd Beach, which may be 

 called the most unique and certainly the richest district in Kent 

 as regards lichens. The numerous species, which will be found 

 recorded here and there in this list as being found at Lydd Beach, 

 are the result of only two days' wandering in that locality. In all 

 j)robability many were overlooked. Stictina sijlvatica and S. aurata 

 are quite as likely to occur there, as well as Nephromium. parile, and 

 should be searched for. 



Sticta pulmonacea, Ach. 



On old trees in hilly districts, especially in damp localities ; 

 rare, except at Lydd Beach. E. B. t. 572. 



On trees near Westenhanger ; Beechborough, near Hythe. On 

 sandy ground, Lydd Beach, covering nearly an acre of 

 ground profusely, but not in fructification. 



EiCASOLiA L^TE^^RENS {Light/.). 



On old trees in damp hilly woods ; exceedmgly rare in Kent. 



E. B. t. 294. 

 On a very old beech tree in Challock Wood, near Wye, 

 sparingly. 



Parmelia caperata (L.). 



On trees, palings, &c. ; very common ; not obsei-ved in fruit. 



E. B. 654. 

 Swanscombe Wood ; Bexley ; Sevenoaks ; Ightham ; Wrotham ; 



Postling ; Wye. 

 Known by its wrinkled, pale yellow thallus. 



P. OLrV'ACEA (L.). 



One of the commonest Hchens, on trees and paHngs. E. B. t. 



2180. 

 Abbey Wood ; Sidcup ; Sevenoaks ; Wrotham ; Shoreham ; 

 Ightham ; HungershaU Eocks, Tunbridge Wells ; Pens- 

 hurst; Edenbridge; Wye; Posthng; Ashford; Folkestone; 

 Chislehurst. 

 The thin brownish or greenish brown closely adherent thallus 

 of this lichen is one of the few that are to be seen within the reach 

 of London smoke. 



P. FULIGINOSA (Dub.). 



On rocks ; not common. 



On sand rocks, Ightham Common and EusthaU Common. 



This species closely resembles P. olivacea, but is much darker in 

 colour. It may be known from it by the medulla tm-ning crimson 

 when touched with solution of chloride of hme. 



P. PHYSODES {L.). 



Common on old pahngs, fir trees, &c. ; not common in fi-uit. 



E. B. t. 126. 

 Abbey Wood ; Bexley ; Edenbridge ; Ightham. 

 Var. recurva, Leight. On the palings of Hill Park, Westerham, 



in fruit ; Ightham. 

 Var. labrosa, Ach. Eomney Marsh. 



