THE LICHENS OF SOUTH LANCASHIRE. 115 
LECANORA ATRYNEA, Nyl. On sandstone rocks and masonry. Very rare. 
The only two localities known to us are on the Mersey estuary. 
On a sea-wall by Dingle Point, April 1910; Hale Point, July 1910, 
and May 1913; see Ганс. Naturalist, iii. (1910), p. 71. 
This liehen had previously been found by one of us on sandstone rocks on the 
opposite bank of the River Mersey, at Eastham, the identification of the latter 
examples being contirmed by Miss A. L. Smith. 
LECANORA ALBELLA, Ach. Very rare. 
А single patch. in a depauperate condition, on dead twigs of Salix 
gte | , pau} , 5 
repens, on the sandhills at Formby, April 1913. 
LECANORA UMBRINA, Му]. 
On a concrete wall in a shady quadrangle, Walton Prison, Liverpool, 
June 7, 1913; also on mortared walls in the same locality, Feb. 1914 ; 
plentifully on the cement of a sea-wall at Dingle Point, Liverpool, March 
1914. Gritstone wall, Broach Flat Farm, near Colne, Н. Robinson ! 
LECANORA CRENULATA, Nyl. On sandstone rocks and walls, also on mortar. 
Not uncommon in some of our districts, and fruits well. 
Sandstone walls, Kirkby; masonry of a bridge near Banks, March 
1909; gritstone blocks on the canal side, Aintree, Sept. 1909; 
abundantly on the mortared wall of Everton Cemetery, Fazackerley, 
April 1913 ; on a wall by the sea, Birkdale, June 1912 ; on a limestone 
wall, Heyroyd, Dec. 1913, Л. Robinson! Walls near Colne, H. 
Robinson ! 
Lecanora HAGENI, Ach. 
On cement at the base of landmark, Freshfield, May 1914. 
LECANORA SULPHUREA, Ach. On siliceous rocks and walls. Not common, 
and often sterile and depauperate in some parts of our district. 
Old sandstone quarry, Little Crosby, June 1909, sterile ; sandstone 
walls, Little Crosby, fruiting sparingly, June 1909 & 1910; walls of 
Millstone Grit, Heapey and Brinscall; gritstone rocks in Mearley 
Clough, Pendle Hill, alt. 800 ft, June 1911; walls of Huntroyd 
Demesne, Padiham, May 1912; walls by the R. Ribble near Clitheroe, 
June 1912; sandstone rocks, Hey Slacks Clough, Boulsworth Hill, 
Пес. 1913, H. Robinson ! 
LECANORA VARIA, Ach. On tree-trunks, old wooden palings, and dead sticks 
and twigs. Common, and often fruiting well. We have records for 
this species from practically all parts of our area, and it seems to be one 
of the few corticole lichens that can tolerate smoke. We have seen it 
at various altitudes, from sea-level up to about 1750 ft., i. e. on stems of 
crowberry on the summit of Boulsworth Hill. 
