2 7 
SUPPLEMENTAL REPORT ON THE LICHENS 
OF EPPING FOREST. 
By ROBERT PAllLSON. F.L.S. F.R.M.S.. and PERCY G. THOMPSON, F.L.S. 
[Read zjth January 1919.] 
W HEN, on 24th February 1912, we read before the Club 
our Second Paper on the Lichens of Epping Forest, 
>ve expressed the opinion that we were then, with a record of 
109 forms, nearing, in all probability, the limit of the present- 
day lichen-flora of the Forest district. This forecast has proved 
to be not inaccurate. 
Since 1912, we have met with some twenty additional forms 
only to those previously recorded by us ; and it seems desirable 
to complete our Report by adding these to our published 
lists. 1 The new' records are as follows :— 
Chaenolheca melanophaea. Zwackh., 
var. Uavocitrina , Pauls. 
On oak-trunk, to N. of Great Monk Wood : fertile, 
Coniocybe furfuracea, Ach. 
On hedge-bank at Oak Hill, They don Bois : fertile. 
Cyphelium stigonellum, A. Zahlb. 
On thallus of Pertusaria on oak-trunks near Shingle 
Hall, Epping Upland, near “ Wake Arms,” and near 
Wake Valley Ponds : fertile. 
Collema glaucescens, Hoffm. 
On wet clayey ground, Pinner’s Green, Highbeach : 
fertile. 
Peltigera rufescens, Hoffm. 
var. praetextata, Nyl. 
On ground near Dulsmead Hollow, in old gravel-pit at 
Oak Hill, They don : sterile. 
Placodium callopismum, Mer., 
On ragstone plinth, Great Pain don Church : fertile. 
Placodium citrinum, Hepp. 
On cement walls, Loughton Sewage Farm : iertile. 
Physcia pulverulenta, Nyl. 
form subvenusla, 01 iv. 
On elm-trunk near Haylc-s Farm, Epping Upland : sterile. 
1 See Essex Naturalist, xvi. (1911), pp. 136-1^5 ; of. cit., xvii. (1913). pp. 90—105. 
