268 LICHENES. 



62. O. SAXATiLis. D. On sandstone rocks at Hudshead, and 

 on stone walls in its vicinity, abundant. 



63. O. ATRA. On the bark of trees, common. 



64. O. SCRIPTA. On the Hazel, frequent. 



65. Verrucaria epidermidis. On the bark of the Birch and 

 of the Oak. 



66. V. EPiG^.A. Dry barren banks, near Berwick, rare. On the 

 sea-banks between Redheugh and Dulaw, rare, J. Hardy. 



67. Lecidea petr^a. On rocks and stones, not uncommon. 

 Abmidant on some parts of Holy-Island. 



68. L. parasema. On trees and rocks, very common. See Fl. 

 Berw. ii. p. 87. 



69. L. coNFLUENS. On rocks, frequent. 



70. L. sanguinaria. On rocks in our higher moors. 



71. L. ULiGiNOSA. On Cheviot, Bot. G. North, ii. p. 33. 



72. L. siLACEA. On Cheviot, Bot. G. North, ii. p. 34. 



73. L. DicKSONii. On rocks at the foot of Cheviot, Bot. G. 

 North, ii. p. 36. 



74. L. GEOGRAPHiCA. On rocks of greywacke, common: on 

 Cheviot. 



75. L. CEderi. On greywacke in the west of Berwickshire. 



76. L. sulphurea. D. On rocks at and about Hudshead. 



77. L. vERNALis. On trees, common. 



78. L. ATRO-ALBA. On greywacke rocks in the west of Berwick- 

 shire. 



79. L. FERRUGiNEA. Sandstouc rocks on the coast of N. 

 Durham and Berwickshire. Greywacke rocks in Dulaw dean, and 

 on stone walls near Penmanshiel, J. Hardy. 



80. Psora decipiens. B. On a dike in Bushiel dean, and on 

 Penmanshiel wood dike, J. Hardy. — N. On rocks behind Wooler. 



81. Sqtjammaria murorum. On rocks and walls, frequent. 



82. S. HYPNORUM. On rocks and mosses. B. Dean in Pen- 

 manshiel wood behind the forester's house. Sea-banks to the east of 

 Redheugh, J. Hardy. 



83. Lecanora ATRA. On rocks and trees, common. 



84. L. suBFUSCA. On rocks and trees, common. 



85. L. ventosa. Mountain rocks. Cockburn Law. On stones 

 on the banks of Watch water ; and on the Twinlaw Cairns : Dulaw 

 dean, J. Hardy. 



S6. L. BYSSiNA. D. On rocks at Hudshead, rare. 



87. L. PARELLA. On rocks, stone walls, and trees, common. 



