THE LICHENS OF PERTHSHIRE Salt 
P. gelatinosa Th. Fr. In similar situations to the preceding. . 
87. Summit of Ben-a- Chroin, ng? 1913. 88. Summit of 
Ben Lawers, 1860; Jones ex reer 
theleodes Th. Fr. On opie in mountain — districts. 
88. Summit of Ben Lawers, 1860, Jones ex Mudd, 282. Craig 
Tulloch, Cromb. Creag-an-Lochan, Watson. Lochan-a-Chait. 
Ib. i 
282. Summit of Craig-na-Caillich, Maingay, 7b. Glen Lochay, 
1913. 
P. Henscheliana Loennr. On schistose rocks. 88. Ben 
Lawers, Jones & Carroll ex Carroll, J. Bot. 1865, 292. Craig 
Tulloch, Cromb. ex Lewght. ed. 3, 489. 
P. nigritella A. L.5m. On peaty earth between the squamules 
of ea oes cinereum. 88. Ben Lawers, 1864, Carroll in 
J. Bot. 1866, 25. 
iP. peltophora A. L. Sm. On earth. 88. Ben Lawers, Stzrt. 
in Grev. iii. 1874, 37. 
P. addubitans nobis (Verrucaria addubitans, Stirt. in Scottish 
Nat. 1880, 4). ai cacti wood. 88. Near Kinloch- 
Rannoch, Stirt. loc. 
Microglena corrosa ae On go rocks. 87. South side 
of Am Binnein, at 3500 ft., 1913. Ben-a-Chroin, at 2700 ft. It 
is possible that these may belong to the following variety. 
Var. nericiensis A. L. Sm. eee aie Lawers, Holl ex Ginith, 309. 
*M. breadalbanensis, sp. Thallus pale brane yellow, 
smooth, broken into sca atte bodice or more contiguous subangular 
the genu "Spores to 8, Scopularty biseriate, inary 
0:018- 90 1 mm. long, 0-010 mm. thick, elliptic-oblong, obtuse at 
one or both ends, the muriform divisions usually in six or seven 
on, rows; longitudinal dissepiments 1-3. 
O a-schist rocks, scattered in cad small or rather larger 
= sashes patches amongst Lecidea contigua. The largest 
ample seen was nearly circular and about 9 millimetres in 
alarhstes, but some of the specimens consisted of scattered groups 
2mm. across. 88. Ben Cruichben, near Killin, at 3100 ft., 
Staurothele hymenogonia A. Zahlbr. On calcareous rocks. 
88. Ben Lawers, ear 311. 
S. umbrinum A. L /Sm. On rocks. 88. Ben Lawers, Jones 
ex Mudd, 281. Craig Tulloch, Orem: 89. Ben-y-Gloe, Cromb. 
Puee aoa 
ocordia gemmata K trunks of trees. 88. Aber- 
told “Smith, 314. Finlarig OW code, ‘Killin, Glen Dochart. 89. On 
