104 REPORT ON THE LICHENS OF EPPING FOREST. 
Rhizocarpon alboatrum, Th. Fr. 
var. epipolia, A. L. Sm. 
On mortar of wall, Copt Hall Green ; fertile. 
Tribe—GR A PHI DEL 
Opegrapha herpetica, Ach. Meth. 
On hornbeam trunk, near Honey Lane Plain ; fertile. 
O vulgata, Ach. Meth. 
On hornbeam trunk, Broadstrood ; fertile. 
Graphis scripta, Ach. 
var. serpentina, Nyl. 
On hornbeam trunk between Woodberrie Hill and Grubb’s 
Pits ; fertile. 
Phceographis inusta, Muell-Arg. 
On hornbeam trunk, near Grubb’s Pits ; fertile. 
Graphina anguina, Muell.-Arg. 
On felled hornbeam, Epping Lower Forest; fertile. 
Enterographa crassa, Fee. 
On hornbeam trunks, Epping Lower Forest; near Grubb’s 
Pits and elsewhere ; . common ; fertile. 
Tribe—P Y REN OCA RPEI. 
Verrucaria viridula, Ach. 
On cement, Jacks Hill, Theydon Bois ; fertile. 
Verrucaria nigrescens, Pers. 
On cement, Jacks Hill, Theydon Bois ; fertile. 
Gongylia viridis, A. L. Sm. 
On sandy banks, near Broadstrood, April 1910 ; Black 
weir Hill ; Oak Hill, Theydon Bois, November 1910 ; 
fertile (The first record of this recently described species 
was from near Horsley in Surrey, February, 1910). 
Pyrenula nitida, Ach. 
On hornbeam trunk near Grubb’s Pits ; on hornbeam 
trunk between Broadstrood and Debden Green ; fertile. 
the nomenclature of the undermentioned forms, included 
in our [first list, having since been affected by the publication 
of Miss A. L. Smith’s monograph, we give the new synonymy :— 
Lecidea decolorans, Flk. is now Lecidea granulosa, Schaer. 
L. tricolor, With, is now Biatorina griffithii, Massal. 
