325 



V X. elegans (Link.). 



There are no good s])cciniens Iroiii tlie Færoes, and Ihc inipcrfect 

 ones maj' be X. elegans, but that, however, is doul)tful. 



66. Placodium muporum (HolTm.). 



Rocks on sca-sboro. San do i^!) ; Sku o (H.). 

 Var. obliteratum Pers. 



Near the sea ; S a n d 6 : Grothusvatn [1) , together with Verrucaria 

 inaiira, Lecanora helicopis and poliophaea; S trom 6: Kirkebo (!). 



67. P. vitellinum (Ehrh.). 



Roclvs by tbe shore. Ratber common (R., !). 



Var. octospora Nyl. 



Rare. 



68 (a). P. cepinum (Ehrh.). 



Os ter 6: Selletræ, on rocks near the sliore (!). 



()9 (b). P. aurantiacum (Lightf.). 



Stem of Salix herbacea. Stromo: Hojvig (R.). 



• 70 (c). P. jungermanniae (Vahl). 

 On tlie ground. Sy der 6: Famien (R.). 



71 (d). P. pypaceum (Ach.). 



On rocks and stones. San do i^I); Stromo: Kirkebo (!); Vaago: 

 Sorvaagsvatn (!). 



Properly speaking Nos. 70 and 71 dilTer with regard to habitat 



only. 



72 (e). P. ferrugineum (Huds.). 



On rocks and stones, common, particularly on tlie sea-shore. 



4. CRUSTULOSAU 

 a. Lecanoreae. 



73 (a). Pannapja bpunnea (Sw.). 

 On tlie ground, common (R., !). 

 Var. demissa Th. Fr. 



Sando (R.l 



74 (b). P. nebulosa (Hoffln.). 



Stromo: Vestmanliavn, over Scapania nemorosa (R.). 



75. P. micpophylla (Sw.). 



On rocks, rarely on the ground i^R., !). 



76. P. Hookepi (Sw). 



On rocks, bere and tbere (R., !). 



