30 THE LICHENS OF PERTHSHIRE 
ex Leight. ed. 3, 79. Near Kenmore, 1913. Strath Tummel. 
Achmore Woods. 
A. bicolor Nyl. Exposed rocks and boulders. Common on or 
amongst the mountains. 87. The Trossachs. 88. Common on 
mossy boulders. 89. Ben-y-Gloe, 1795, Dickson in Hook. 69 
Ben Vrackie. Wall near Kirkmichael, 1914, at only 750 ft 
etraria islandica Ach. On the groun nd among heath and in 
stony and ware A aoe especially on mountain summits or ridges, 
occurring up to 3500 . — higher. 88. “On Creg Chaillech, in 
Breadalbane,” Lightf. 829. Lochan- a-Chait, Phytol. 1843. Meall 
Gruaidh and Ben Ee Cromb. 216. Am Binnein and Ben 
Laoigh, 1911 
EF 
1 8 platyna Fr. 89. Muirhall, Perth, Lindsay ex Lezght. 
ed. 
crispa Nyl. Insimilar localities to the preceding. Common 
on the higher mountains in all three vice-counties, ascending to 
3900 ft. on Ben Lawers. 
.aculeata Fr. On rocks and earth on mountains and upland 
heaths. Frequent in each of the three vice-counties, ascending to 
the cairn on Ben Lawers, eee? ft. 
Form hispida Cromb. “Creg Chaillech,”’ Lightf. 883. 
Ben Lawers; Craig Tulloch jer Rannoch Moor! Cromb. 218. 
Ben Chalum. 
Platysma nivale Nyl. Dry mountain summits and ridges; 
very rare. 88, Ben Lawers, Dickson, fasc. 3,18. 89. Glen Shee, 
1889, West. 
[P. sepincola Nyl. The records in Leighton’s Lichen Flora 
are doubtful, and Crombie does not repeat any of them in British 
Lichens. Further confirmation of its occurrence in Perthshire is 
required. | 
P..ulophyllum Nyl. On tree trunks. Not uncommon, especi- 
ally amongst the mountains. 87. Glen Falloch, Cromb. 222. 
and 89. Frequnt in these vice-counties. 
Pp. diffusum Nyl. Old tree stumps, palings, &c.; rare. 
87. as esa Cromb. 222. 88. a ola Cromb, 222. 
P. fahlunense Nyl. Rocks and boulders on the mountains. 
87. Ben tas. Watson. 88. “It was found i in Breadalbane and 
communicated by my ingenious friend and fellow traveller Mr. 
Stuart,” Light. 819. “Summit of Ben Lawers! and Stuich-an- 
chan, but little in fructification,” Gardiner in Phytol. 1843. 
Ben More!, Cromb. Lichenes,27. Ben Laoigh, Travis. 89. Ben 
Vrackie, at "1400 ft., 1912. 
. commiatum ‘Nyl. Rocks and_ boulders, shiety on the 
mountains. 88. Ben Lawers, 1864, Carroll in Journ. Bot. 1866, 
22. Ben More, Cromb. ex Leight. ed.1,102. Hills near we 
Cromb, 224. 89. Ben Vrackie, Holmes. 
Form ¢ tenuisectum Cromb. 88. Ben Lawers, os mb. 2 
