1898] Macoun— Cryptogamic Flora of Ottawa. 51 



XIX. LECANORA, Ach. 



342- Lecanora muralis, (Schreb.) var. saxicola. Schaer. 



Very common on both gaanite and limestone boulders, Governor's 

 Bay, Rockcliffe Park, April 17th, 1895; quite common on boulders 

 south of the Aylmer road and west of Brigham's Creek, Hull, Que.; on 

 rocks between Chelsea and King's Mountain, May 22nd, 1897. 



343- Lecanora pallida, (Schreb.) Schaer. 



On young pine trees Carleton Place, May 7th, 1892 ; on a pine 

 trunk Rockcliffe Park; on trunks in woods west of Hull station, 

 also in woods near Leamy's Lake ; on trunks in a swamp at Stittsville ; 

 on rails and trunks, King's Mountain, May 22nd, 1897. 



344- Lecanora pallida, (Schreb.) var. cancriformis. Tuck. 



On living pine trees in woods near the C. P. R. bridge over the 

 Ottawa, west of Hull, April 27th, 1895 ; on beech trees, Rockcliffe 

 Park. 



345. Lecanora subfusca, (L.) vaf. allophana, Ach. 



On living pine i.ces in woods near the C. P R, bridge, over the 

 Ottawa, Hull, Que., April 27th, 1895 ; on old cedar rails in McKay's 

 woods and Ottawa East ; an maple and beech trunks Rockcliffe Park 

 and Beechwood ; on maple trunks one mile south east of Billings 

 Bridge; on basswood bark in Dow's Swamp; on tree's in a swamp west 

 of Hull station and on boulders in a field by the Aylmer Road ; on 

 trunks in woods by Leamy's Lake and on boulders by Brigham's 

 Creek; on trunks in a swamp at Stittsville; on trunks, common. King's 

 Mountain, May 22nd, 1897. 



346. Lecanora subfusca, (Schreb.) var. coilocarpa, Ach. 



On beech bark in woods, Rockcliffe Park, April 15th, 1891 ; on 

 beech bark in woods one mile south east of Billings Bridge ; on trunks 

 on King's Mountain, May 22nd, 1897. 



347. Lecanora subfusca var. argentata, Ach. 



On small trees at the western base of King's Mountain, west of 

 Chelsea, May 22nd, 1897. 



348. Lecanora Hageni, Ach. 



On old rails near McKay's Lake, April 23rd, 1891 ; on cedar bark 

 on fences, Ottawa East ; on old cedar rails along the Richmond Road 

 above Hintonburg, April i8th, 1896. 



349. Lecanora atra, (Huds.) Ach. 



On young beech trees at Buckingham, Que., May 14th, 1896 ; on 

 limestone shingle at Britannia, April 20th, 1895. 



