110 MESSRS. J. А. WHELDON AND W. G. TRAVIS ON 
on stones at the base of landmark, Freshfield ; on an old log on the sand- 
hills, Freshfield; masonry of a bridge over the В. Alt near Aintree, 
May 1910; on ash and sycamore by the R. Ribble near Clitheroe, June 
1912; in good condition, on dead willow-twigs and on the adjacent 
ground, on the sandhills, Formby, March 1914. 
PARMELIA OMPHALODES, Ach. On Millstone Grit rocks in the hilly districts. 
Very rare. Sterile, and only seen in a depauperate condition. 
Forest of Rossendale, Stansjield ; sparingly on flat Millstone Grit 
rocks and peaty earth, Noyna, near Colne, M. Robinson $ W. б. T., 
May 1913. | 
As compared with the abundance of this species on the Millstone Grit 
rocks of West Lancashire, its scarcity on our South Lancashire hills is 
striking evidence of the different conditions which prevail. 
[PanMELIA САРЕКАТА, Ach. Trunks of old trees, Sheddon Clough, FI. 
Todmorden. | 
Extinct. There are specimens in herb. Leyland from the above- 
mentioned locality, vide Fl. Halifax, р. 221. 
PARMELIA FULIGINOSA, Nyl. Siliceous rocks and walls, not uncommon in 
some districts; more rarely on tree-bark. Sterile. 
Netherton, Vict. Hist. p. 88; Whalley, May 1909; between Barrow- 
ford and Barley Moor, А. Wilson ; bridge over the Ц. Alt near Aintree, 
May 1910; wall on Pendle Hill, alt. 900 ft., June 1911 ; damp stones 
in glacial drift, Watermeetings, near Colne, May 1913 ; very fine on flat 
gravestones in the churchyard, Hale, 1912. 
Var. LETEVIRENS, Nyl. On the bark of a hawthorn, Worsaw Hill, 
Chatburn, May 1910; on willow-bark, Woodvale, July 26, 1913 ; on 
twigs of байк repens on the sand-dunes, Formby ; опа tree by Ings 
Beck, near Chatburn, June 1914. 
РАВМЕМА PHYSODES, Ach. Walls, tree-trunks, and sandy dune-banks ; not 
uncommon locally. Sterile. 
Between Barrowford and Barley Moor, А. Wilson ; common in the 
Colne district, /7. Robinson; occurs not unfrequently in fine patches on 
the exposed roots and dead twigs of Salix repens, and on the adjacent 
ground, on dry dunes in the sandhills at Hightown, Formby, and 
Fresh field. 
The Г. LABROSA on a prostrate tree-trunk, Mearley Clough, Pendle 
Hill, May 1910. 
