THE LICHENS OF PERTHSHIRE 33 
orediata Cromb. On rocks; . rare. ‘88. Craig Tulloch, 
near Blak Atholl, Cromb. 253. 
uliginosa Nyl. On rocks and willag sometimes on trees. 
Frequent i in all ge vice-counties. 
r. letevirens Nyl. On trees and palings. Frequent in all 
mrs tee sdieakicia 
- P. stygia Ach. On siliceous rocks at high altitudes, ascending 
to 3840 ft.. 88. Ben More!, Cromb. Lichenes 
P. alpicola Fr. On rocks, especially preferring sa on the 
higher mountains. 88. Ben More, Cromb. ex Leight. ed. 1, 127; 
abundant there at 3600 ft., 1905. Summit of Meall Chuirn, at 
3000 ft. 89. Cai n Gowar, Cromb. 256. Ben-y-Gloe, at 3500 ft. 
rs 
in all oben hae -counties, occurring up to 3900 ft. or higher. 
“ Ben Lawers and Stuich-an-Lochan, in fruit,” hao 1843. We 
found it fruiting well on Ben More, at 3150 ft., in 1905. 
Form minuscula Nyl. 88. Ben Laoigh, in. fruit, at 3500 ft. 
Var. reticulata Cromb. 88. Ben Lawers, Cromb. 257. Near 
the summit, 1914! Tt Ben-y-Gloe, sparingly and infertile, 
Cromb. in Grev. i, 1873, 170. We observed it. there at above 
3000 ft. in 
P, trosta is Ny). Rocks and boulders on the mountains. Frequent 
in all three vice-counties, occurring up to 3500 ft. or over on Am 
Binnein. Fruiting at 3000 ft. on Meall Chuirn and 3200 ft. on 
Ben Chalum. First record, Lightfoot, Fl. Scot. 1777, 885, “Creg- 
Chaillech.” 
P. physodes Ach. On — shrubs, heather, rocks, and walls. 
Common throughout the county. Fruit rare. First record, 
Lindsay, Brit. Lich. 1856, 196, “ Perth, very common, fruiting on 
-Kinnoull Hill.” 
Form labrosa Ach. Common in all three vice-counties. 
Form tubulosa Mudd. 88. Ben Lawers in fruit, Cromb. 260. 
Tyndrum and Killin, Watson. Creag-n a-Caillich. ' 
Form platyphylla Ach. Frequent in yn three vice-counties. 
P. vittata Nyl. On the ground in alpine situations. 88. 
Knock Hill, Crieff, Lindsay ex Mudd, 96. Rannoch Moor, 1910. 
P. encausta Ach. Onrocks. 88. Ben More, Cromb. Lichenes, 
36. Ben Lawers, Maingay ex Mudd, 97. 
Var. candefacta Ach. 88. Ben Lawers, Jacob ex Mudd, 97. 
Parmeliopsis pea Nyl. Onbark near the roots of fir trees. 
8s. Sear Cromb, 2 
ages rites ie In similar positions to the preceding. 
88. Rooke of trees, A decinippoenio, Strath Dochart, 1910. 
PHYscracex. 
sci aae eslanger Th. Fr. Walls, roofs of farm buildings, 
— neoamte — sere aa in Fe low country, less frequent 
ongst the! age an rare in some districts. 87. 
Balquhidder. @ Finlarig !, Oram 
omb. 297. Rannoch, niger 
. Com bs in the lower parts of this vice-county. 
Sete or Borany, Aprin 1915. [SuprreMent.] 
