1898— 1902. No. 21] LICHENS. 67 
65. North Devon, including Havhestberget (2637—2641; 2647; 
4053—4064) : 
Over earth: Squamaria fulgens: Cetraria aculeata, cucullata, 
nivalis; Dufowrea muricata: Alectoria ochroleuca: Bryopogon pro- 
licum: 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 pywxidata: Placodiwim elegans: Lecanora 
epibryon: Bryopogon prolixrum; 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 prolicum. 
On stone: Lecidea auriculata, brachyspora, purissima ; Rhizo- 
carpon geographicum: Placodiwm elegans ; Aspicilia calcarea, gibbosa. 
68. Lager 30 (4124--4126): 
On stone: Rhizocarpon geographicum: Gyrophora anthracina. 
69. Lager 33 (4122): 
Over earth: Placodium elegans. 
