117 
MOSSES OF TADCASTER AND IMMEDIATE DISTRICT. 
WILLIAM INGHAM, B.A. 
Organising Inspector af Schools, 47, Haxby Road, York. 
I sEND this List, as it may prove useful to those botanists 
who attend the forthcoming Tadcaster Excursion of the York- 
shire Naturalists’ Union, 
The most interesting spot in this district is the Jackdaw 
Crag Quarry, close by Tadcaster. This is a very large and very 
old quarry on the magnesian limestone, with undulating bed 
and perpendicular cliffs. 
I have visited this quarry six times during the last two years 
and I have found it a most interesting spot for bryologists 
to work, as the large number of Mosses in this List, from this 
quarry alone, will testify. 
Near the entrance of the quarry the Deadly Nightshade 
(Atropa Belladonna) \uxuriates. 
Conchologists will also find this quiirty interesting, for I saw 
here :— 
Helix nemoralis. Of very large form. 
Helix aspersa. In abundance. 
Helix hortensis v. arenicola. 
Clausilia bidentata. Pientiful. 
Clausilia laminata. Of large form. 
On the face of the quarry, in the deep shady parts, the 
Hepatic, 
Jungermania turbinata Raddi., fruits well, and covers the 
cliffs like a carpet. 
I am much indebted to Mr. H. N. Dixon, M.A., F.L.S., for 
kindly verifying all doubtful Mosses in this List 
DICRANACE. 
Ditrichum flexicaule var. densum Braithw. J. C. Quarry, 
Tadcaster, June 1808. 
See purpureus Brid. J. C. Quarry, Tadcaster, June 
1898. 
Dicranella heteromalla Schp., the male plant. Church 
Fenton, May 1898 
Dicranella varia Schp. J. C. Quarry, Tadcaster, April 1897. 
Boston Spa, April 1897. Sherburn-in-Elmet, April 1897. 
Dicranoweisia cirrata Lindb. Thorp Arch, April 1897. 
April 1899. 
