THE LICHENS OF SOUTH LANCASHIRE. 131 
VERRUCARIA MARGACEA, Wahl. 
On sandstone rocks in stream, Hey Slacks Clough, Walverden Valley, 
May 1913. 
VERRUCARIA ÆTHIOBOLA, Wahl. 
On submerged stones (black calcareous shales) in the bed of R. Ribble 
ut Chatburn, June 1911. 
VERRUCARIA SUBMERSA, Schaer. 
On halt-buried stones (limestone) in banks of glacial drift by the 
R. Ribble at Chatburn, March 1913. On damp, shady limestone rocks 
in an old quarry, Chatburn, June 1914. 
VERRUCARIA PAPILLOSA, Ach. 
On calcareous stones by the R. Ribble near Clitheroe, June 1912 ; on 
shady, damp limestone rocks, Bold Venture Quarry, Chatburn, March 
1918, C. B. Travis & W. G. T. 
VERRUCARIA VIRIDULA, Ach. | 
Оп walls by tie В. Ribble near Clitheroe, June 1912. 
VERRUCARIA NIGRESCENS, Pers. 
Qn bare exposed limestone rocks, Worsaw Hill, June 1911; on 
mortar, Horrocksford Bridge near Clitheroe, March 1913; very sparingly 
on cement at the landmark, Freshfield, 1913; оп pieces of limestone on 
a railway-bank at Walton, Liverpool, July 1914. 
VERRUCARIA MAUROIDES, Schaer. 
On exposed limestone rocks at the top of Worsaw Hill, Chatburn, 
Sept. 1910. 
VERRUCARIA MACULIFORMIS, Krempelh. 
On limestone rocks in a gully near Hooke Cliffe, Pendle НШ, 
ult. 750 ft., June 1911; on black calcareous shale, Horrocksford 
Quarries, Clitheroe, March 1913. In the latter locality fairly common 
on pieces of black shale lying about in the older parts of the quarries ; 
but the lichen is not easy to discern owing to the dark colour of 
the substratum. 
VERRUCARIA Durourn, DC. 
On shady, bare limestone rocks, Worsaw Hill, Chatburn, Sept. 
1910. 
