FLORA OF FORFARSHIRE. 
271 
U. calcarea , Ach. Calcareous Urceolaria. H. 172. 
Lawhill, Dundee ; Baldovan ; Sidlaw Hills, Ac. 
U. cinerea , Ach. Grey Urceolaria. H. 172. 
Sidlaw Hills. 
U. Acharii , Wahl. Acharian Urceolaria. H. 172, and 
var. (3. cyrtaspis, Hook., with the others named above, are 
recorded in Don’s Clova list. 
Lecidea, Ach. Lecidea. 
/ 
Br. sp. and v. 73 . F. 25 . 
L. atrata, Wahl. ? Inky-crusted Lecidea. H. 174. 
Granitic rocks in Glen Esk, Mr G. Don. 
L. cechumena , Ach. Confused black and olive Lecidea. 
H. 175. 
Coast ; Lawhill ; Sidlaws ; Clova. 
L. petrcea , Ach. Lock Lecidea. H. 175. 
Walls and rocks frequent. 
L. conjluens, Ach. Confluent-shielded Lecidea. H. 175. 
Hocks and walls plentiful, apothecia very variable in form, 
size, and disposition. 
L. eleochroma, Ach. Common black-shielded Lecidea. 
H. 176. (L. parasema, Ach.) 
On trees common. 
L. geographical Hook. Map Lecidea. H. 178. 
Plentiful on the'primitive rocks from the coast to the highest 
mountain summits. 
L. silacea , Ach. and L. CEderi , Ach. H. 178. 
On the Sidlaw Hills and Clova mountains frequent, asso- 
ciated with L. confluens, from some states of which they are 
scarcely to be distinguished except by the colour of the 
thallus, and that is variable. Not unfrequently, indeed, the 
grey, yellow, and red hues are blended in one specimen, and 
