ltciit:n-floi?a or koutheux eukope. 379 



46. P. arctica^ Th. Fr. Suxicolous, top of Sneehatton* Not men- 



tioned in Ny lander's ' Scand.' 



47. Parmeliopsis amhigiia^ Acli. Corticolous (on weatliered wood), 



Pogstuen, common, 



48. P. aleurites^ Ach. Corticolous (on weathered wood), Jerkin. 



IN'ot Lichen ahurites, Sm. (E. Bot. t. 858), wdiich is Par- 

 melia placorocUa, Ach. {fide Nyl. Scaud. 106). 



49. Pliyscia parietina^ L. Corticolous and saxicolous, conimon- 



On old cracked bark of birch in the forests of Guldbrands- 

 dal ; on ash about Christiania; on walls, Eomsdal. 

 Var. polycarpa, Elirh. Corticolous ; common on pine- and fir- 

 twigs, living and dead, Eidsvold (Mjoseu lake). 



50. _P. lycJinea, Ach. Corticolous and saxicolous, on old rugged 



bark of birch in the forests of Guldbrandt-dal ; on walls and 

 boulders, Jerkin. 



51. P. candelaria, Ach. pr. p., Nyl. {Lichen co7WoIor, Dicks.). 



Saxicolous. Frequently associated with Lecanora vitellina: 

 very common on boulders, Jerkin ; on wall?;, Uomsdal. 



52. P, pulverulenta^ Er. Corticolous, common about Eidsvold ; 



on old rugged bark of birch in the forests of Guldbrandsdal; 

 on ash about Christiania. Thallus sometimes very white 

 pruinose. 



53. P. mxiscigena,'W\Avi}o, Terricolous; Sneehatten, and the Do- 



vrefjeld generally, common ; a variety of the preceding, 

 according to NyJander's ' Scand.' 110. 



54. P. aquila, Ach. Saxicolous, Christiansand. , 



55. P, stellaris^ Er. Corticolous, saxicolous, terricolous, and mus- 



cicolous ; in some of its most variable forms, common ; fre- 

 quently in fruit, and spermogoniferous. On old rugged 

 bark of birch in the forests of Guldbrandsdal ; on ash about 



Christiania. 

 Var. suhobscnra, iS'yI. Corticolous (on weathered wood), and 



muscicolous. Jerkin. 

 Var. leptalea, Ach. 

 Var. tenella, Scop. 

 Tar. aijwlia, Ach. 



Subform acrita, Ach. 



56. P. c(jesia^ Hffm. Saxicolous, common, frequently accompany- 



ing Placodium elegans. On walls, Romsdal ; on boulders 

 about Christiania. 



57. p. obscura, Er. Corticolous, saxicolous (Laurgaard), and 



muscicolous (Romsdal). 



58. TTmbilicaria pmtulata^ Hffm. Abundant and in large beautiful 



.< 



