1G 
LICHENES. 
Arthropyrenia crombiei, A. L. Smith.—Tay. On alder bark ; banks of the 
Garry, Blair Atholl, Perthshire ; J. M. Crombie (II. 43). 
AL GJE. 
Phreothamnion confervicolum, Lagerh.—Forth. On Lenina minor and other 
aquatic plants ; Elf Loch, Braid Hills ; August 1910 ; F. L. M'Keever 
(III., 57). 
