AND ITS NKI(;HliOUKHOOn. I5 



L. phlogina, Ach. On elm, Kelvedon ; Braxtcd ; Rayne. 



L. sophodes, Ach. On slates, on Colchester Roman wall ; and 

 on sandstone, Kelvedon ; Colchester, f, exigua, Ach. Palings, 

 W'alton-on-Naze ; Kelvedon ; Coggeshall. f. vieiabolica, Ach. On 

 sandstone, Kelvedon. Brick wall, Coggeshall. f. kcideoides, Nyl. 

 Old paling, Kelvedon, 1884. 



L. erysibe, Ach. Trees and walls, Kelvedon ; Halstead ; Peer- 

 ing, f. fusco-cifierea, Mudd. On hedge-bank, Inworth. 



L. arthroocarpa, Dub. f. fusce//n, Schoer. Fir-trees, Kelve- 

 don. Wood, Totham. 



L. haematomma, Ehrh. On limestone, Coggeshall. 



Pertusaria dealbata, Ach. Ash-tree, Rivenhall ; Kelvedon. 



P. communis, 1).C. Trees, Pods Wood, Messing; Braxted ; 

 Kelvedon ; Marks Hall. 



P. melaleuca, Sm. Tree, Mile End, Colchester. 



P. fallax, Pers. Trees, Kelvedon ; Wickham ; Marks Hall ; 

 Pods Wood. 



P. velata, Turn. Palings, Kelvedon ; Braxted. f. variolaria- 

 aspergi/Ia, T. and B. Oak-tree, Marks Hall, mixed up with F. com- 

 munis. 



P. faginea, Ach. Trees, brick walls, palings, old posts, Kelve- 

 don, (5v:c. 



P. globulifera. Turn. Ash-trees, Kelvedon ; Inworth. 



P. pustulata, Ach. On trees in woods, Kelvedon ; Yeldham ; 

 Bentley ; Braxted ; Messing. 



P. leioplaca, Ach. Trees in woods, Kelvedon ; Braxted ; 

 Pods Wood. 



Urceolaria scruposa, L. On l^rick walls and trunks of oak 

 and elm, Kelvedon ; Braxted ; Peering, f. bryophila, Ach. On 

 mosses on old walls, Kelvedon. 



Phlyctis agelaea, Ach. On trees, oak and ash, Kelvedon ; 

 Braxted ; Messing ; Copford ; Halstead ; Hatfield Broad Oak. 



Lecidea ostreata, Hffm. On very old oak palings and posts, 

 abundant where it grows, Rivenhall ; Kelvedon ; Marks Hall ; Aid- 

 ham. 



L. friesii, Ach. Old oak post, Inworth, 1884. 



L. fuliginosa, Tayl. K — C — ■ C. dissolves the crust. 

 Sandstone, Kelvedon. 



L. dispansa, Nyl. On flint stones, Tiptree Heath ; Wick- 

 ham ; \\"itham. 



