THE LICHENS OF SOUTH LANCASHIRE. 129 
Bacipra BECKHAUSII, Koerb. On bark. Very rare. 
On a piece of old bark lying on the sandhills, Freshfield, Sept. 1908; 
on the bark of Pinus maritima on the sandhills, Freshtield, May 1914. 
BACIDIA мозсовом, Mudd. On mosses on limestone rocks and sand-dunes. 
Incrusting mosses on a small limestone scar by the roadside between 
Chatburn and Worston, 1907, А. A. Dallman $ J. A. W.; sandhills, 
Formby, March 1912; in the crevices of limestone rocks, Worsaw Hill, 
March 1913, С. В. Travis & W. G. T. 
Var. ATRISEDA nobis, var. nov. 
Thallus effusus, granulosus, granulis vegetis acriter viridibus siccatis 
cinereis, in hypothallo nigricante sparsi. Apothecia primo pallide 
cervina, mox nigra, exsiccando semper nigra, margine tenui, mox im- 
marginata, demum valde convexia et deformia, solitaria vel aggregata. 
ÆEpithecium nigricans; hymenium fuscescens ; hypothecium saturate 
rubro-fuscum. Sport recti vel leviter curvati, uno vel utroque polo 
acuti, interdum caudati, 30-39 x 2-3 и. KHO et I reactiones ut in typo. 
Hab. On decaying mosses and thin, moist humus on bare low Salix 
repens dunes, associated with Cladonia pyvidata. Formby, Oct. 1907, 
Jun. 1914. 
Forming blackish patches owing to the predominant dark substratum on which the 
thalline granules are sparsely scattered. Differs from the type in its colour, dusky 
hymenium, apothecia, and habitat, and may prove to be a distinct subspecies. 
BUELLIA CANESCENS, De Not. Not infrequent locally. Sterile. 
Kerbstones of a footpath near Netherton, Jan. 1910; abundant in that 
situation, but thalli small and ill-developed ; at the base of sandstone 
walls of a barn, Little Crosby, Sept. 1912 ; common on limestone walls 
at the outskirts of Downham viliage, March 1913; also seen on limestone 
gate-posts in other localities in the vicinity of Chatburn and Downham; 
on the bark of roadside trees near Smithies Bridge, Chatburn. 
BuRLLIA MYRIOCARPA, Mudd. 
On the bark of a roadside tree in a lane close to Horrocksford Bridge, 
Clitheroe, March 1913 ; on a log on the sandhills near Freshfield, 1913; 
the var. punctiformis, Mudd, abundantly on a prostrate tree-trunk on 
the shore near Hale Point, May 24, 1913; on dead willow-twigs on the 
sandhills, Formby, March 1914; on a roadside tree near Smithies Bridge, 
Chatburn, June 1914. 
[BuELLIA PARMELIARUM, H. Olivier. (Abrothallus Smithii, Tul.) 
This lichen (or fungus), which is parasitic on the thalli of various 
foliaceous lichens, was first detected in South Lancashire, namely, on 
Emmott Moor, near Colne, on Platysma glaucum, Nyl., q. v.] 
