1898-1902. No. 21] LICHENS. 67 



65. North Devon, including Havhestberget (26372641; 2647; 



4053-4064) : 



Over earth: Squamaria fulgens: Cetraria dculeata, cucullata, 

 nivalis : Dufourea muricata : Alectoria ochroleuca : Bryopogon pro- 

 lixum: Buellia parasema : Solorina saccata : Thamnolia vermicularis. 

 Over moss: Cladonia pyxidata: Pertusaria subobducens: Le- 

 canora epibryon: Aspicilia verrucosa; Physcia muscigena, pulveru- 

 lenta: Rinodina turfacea: Peltigera canina. 



66. North Devon, Burginsel (3987-3992; 4165-4178): 



Over earth: Aspicilia verrucosa : Cetraria aculeata, hiascens ; 

 Alectoria nigricans: Thamnolia vermicularis. 



Over moss: Cladonia pyxidata : Placodium elegans : Lecanora 

 epibryon: Bryopogon prolixum: Physcia pulverulenta : Rinodina 

 turfaceca: Leptogium lacerum. 



On stone: Lecidea brachyspora, purissima : Rhizocarpon gemi- 

 natum, geographicum : Placodium elegans: Physcia caesia: Placyn- 

 thium nigrum. 



67. Cardigan Straits, Devils Island (3982-3985; 4070-4080): 



Over earth: Gyalolechia subsimilis : Rinodina turfacea. 



Over moss: Cladonia pyxidata: Lecanora epibryon; Physcia 

 muscigena, pulverulenta: Thamnolia vermicularis. 



Between moss: Cetraria aculeata, cucullata, hiascens, nivalis : 

 Alectoria nigricans: Bryopogon prolixum. 



On stone: Lecidea auriculata, brachyspora, purissima : Rhizo- 

 carpon geographicum : Placodium elegans ; Aspicilia calcarea, gibbosa. 



68. Lager 30 (4124-4126): 

 On stone: Rhizocarpon geographicum: Gyrophora anthracina. 



69. Lager 33 (4122) : 

 Over earth: Placodium elegans. 



