102 REPORT ON THE LICHENS OF EPPING FOREST.
trunks, Nether Hall, Roydon, Rectory Lane, Loughton,
and elsewhere ; sterile.
P. ulothrix, Nyl.
var. virella, Cromb.
On beech trunk, Little Monk Wood ; sparingly fertile.
P. erosa, Leight.
On tiles, Nether Hall, Roydon ; sterile.
Tribe—LECANO-LECIDEEI.
Sub-Tribe—LECANDREI.
Lecanora (Squamaria) saxicola, Ach.
On brick walls, Epping Upland, Loughton Bridge, Wal-
tham Abbey, Nether Hall, Roydon ; fertile.
Sub. sp. albomarginata, Nyl.
On sandstone boulder. Chamber's Farm, Epping Upland,
fertile.
L. (Candelaria) laciniosa, Nyl.
On cement, "Robin Hood," Loughton ; fertile.
L. aurantiaca, Nyl.
Sub. sp. erythrella, Nyl.
On cement, Epping ; fertile.
L. cerina, Ach.
On ash trunk, Blackacre, Theydon Bois ; fertile.
L. exigua, Nyl.
On oak trunk, Epping Lower Forest ; on projecting
beech-roots, Fairmead ; on old tombstones, St. Nicholas,
Loughton ; on cement and sandstone, Epping Upland ;
fertile.
L. galactina, Ach.
Sub. sp. dissipata, Nyl.
On cement, Snaresbrook Railway Station ; fertile.
L. subfusca, Nyl.
On trunk of hornbeam, Baldwin's Hill ; fertile.
L. subfusca, var. campestris, Nyl.
On ash trunk, Epping Lower Forest ; on old tomb-
stone, Epping Upland, fertile ; on brick coping, Debden
Slade.
L. albella, Ach.
On hornbeam trunks, between Broadstrood and Debden
Green, S. of Broadstrood, and elsewhere ; fertile.