26
Searching of herbaria has also rescued some records.
A luxuriant specimen of Rhytidiadelphus loreus from
Monk Wood in Epping Forest, 1912 collected by Percy
Thompson lends weight to suspicion that this moss was
exterminated in Essex near the turn of the century by
the rise in sulphur dioxide pollution. Campylium
polygamum and Sphagnum papillosum are also represented
in the Passmore Edwards' herbarium collection and are
new records for Essex.
As we move into the 1980's a new era of botanical
recording is becoming established with square bashing
and the collation of sporadic records being supplemented
by a systematic mapping of the vegetation on a field by
field basis. BrianCcombes, has as I write this article,
just finished his field by field mapping and woodland
survey of the 10km sq. TQ59 and we are well on the way
to completing TQ49. Let us hope that the idea catches
on and that within a short time we will be able to publish
coloured vegetation maps of the whole county.
REFERENCES: KENNETH 3. ADAMS
A Bryophyte Flora of Essex by A.J. Pettifer
The Essex Naturalist Vol. 32 Part 2 1968 Page 83
A Bryophyte Flora of Essex - Corrigenda by A.J. Pettifer
The Essex Naturalist Vol. 32 Part 3 1969 Page 221
New Essex Plants by Kenneth 3. Adams
The Essex Field Club Bulletin Spring 1977 No. 16
Highlights of the Botanists Year by Kenneth 3. Adams
The Essex Field Club Bulletin Autumn 1977 No.17
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