AND ITS NEIGHBOURHOOD.
13
Placodium murorum, Hffm. On mortared walls and brick
walls, Kelvedon ; Colne ; Feering; Mistley. f. lobulation, Smrft.
On stone, Chelmsford.
P. decipiens, Arn. On walls, Kelvedon ; Mistley. On flint
wall, Thetford, in small round spots.
P. callopismum, Ach. f. plicatum, Wedd. Mortared walls,
brick walls, and sandstone, Kelvedon; Coggeshall.
P. miniatum, Hffm. f. obliteration, Pers. On limestone,
Coggeshall.
P. citrinum, Ach. Trees, palings, brick walls, and mortared
walls, Halstead Kelvedon ; Feering ; Braxted.
P. chalybaeum, Duf. Limestone, Coggeshall.
Lecanora vitellina, Ach. Old palings and walls, Kelvedon.
Var. coruscans, Ach. Palings, Kelvedon. Var. epixantha, Nyl.
Kelvedon.
L. candelaria, Ach. On willow and horse-chestnut, on palings
and old boarded barns, Kelvedon; Great Tey; Lyston. f. granu-
losa, Leight. On paling, Great Tey.
L. glaucocarpa, Whlnb. f. pruinosa, Sm. Great Coggeshall;
on limestone, T. B. Hall.
L. squamulosa, Schrad. Sandstone, Feering, 1881.
L. fuscata, Schrad. Sandstone, Feering ; Kelvedon.
L. sarcopsis, Whlnb. Kelvedon.
L. varia, Ehrb. Old palings, Kelvedon; Great Tey; tree,
Braxted.
L. atra, Huds. On old walls, abundant, Kelvedon. f. corticola,
Larbal. On trees, Messing ; Kelvedon.
L. circinata, Pers. On limestone, Coggeshall.
L. sulphurea, Hffm. Old walls, Kelvedon ; Great Tey; Chip-
ping Hill. Variable as to colour.
L. symmicta, Ach. On palings, old posts, and rails, Kelvedon;
Feering; Pods Wood ; Coggeshall. Var. aitema, Ach. Kelvedon.
L. expallens, Ach. On palings, Kelvedon. Var. /3. Ach.
(orosthea, Sm.) Trunk of horse-chestnut, Kelvedon.
L. subfusca, L. On trees, Gosfield. f. allophana, Ach. Trees,
Rivenhall; Kelvedon; Messing. f. parisiensis, Nyl. Kelvedon.
f. rugosa, Pers. Kelvedon. f. argentata, Ach. On trees and brick
walls, Kelvedon ; Wivenhoe ; Coggeshall; Totham. f. contumescens,
Rob. Upper branches of trees, Kelvedon. f. atrynea, Ach. Brick
walls, palings, ash-tree, sandstone, Braxted; Kelvedon ; Feering;