54 
IY. 
On the Lichen-Flora of Epping Forest, and the Causes 
AFFECTING ITS KeCENT DIMINUTION. 
By tlie Bev. James M. Crombie, M.A., F.L.S., &c. 
[Read April 28th, 1883.1 
The first list of the Lichen-Flora of Epping Forest is that 
given in Turner and Dillwyn’s ‘ Botanist’s Guide,’ published 
in 1805. In this the following fifteen species are enumerated, 
viz. :— 
Lichen pinicola. 
Lichen tesselatus. 
,, sophodes. 
,, palmatus. 
,, tigillaris. 
,, granulatus. 
,, lynceus. 
,, subtilis. 
,, graniformis. 
,, trapeziformis. 
,, pezizoides. 
,, puhnonarius. 
,, spliceroides. 
,, vermicular is. 
,, inquinans. 
All the above, with the exception of Lichen pinicola, Lichen 
lynceus, and Lichen vermicular is, are recorded as having been 
gathered by Edward Forster, jun., who, residing in the dis¬ 
trict, collected at intervals for nearly half a century the 
lichens of the Forest. The next list is that given by Mr. 
Forster himself in his MS. notes interleaved in his copy of 
the above work of Turner and Dillwyn—a transcript of which, 
made by your President (Professor Boulger), I have had the 
advantage of perusing. In this, exclusive of several spedies 
from other parts of Essex, as also of some “ Spilomas,” there 
are enumerated, in addition to the above, the following forty 
species, which I have transcribed in the order in which they 
occur in the MS.:— 
Lichen farreus. 
,, aipolius. 
,, argenus. 
,, coarctatus. 
Lichen turneri. 
,, scolecinus. 
,, scalaris. 
,, polycarpus. 
