.323 



49. St. herbacea (Huds.). 



Sydero: Skarvetange (R.); Vaago: Vaag Gjov '!); Si)ec. fert. in Mus. 

 Hafn. from 1817 (Lyngbye); Oster 6: Toftevatn i!). 



50. St. pulmonaria (L.) (not .S. linita). 

 Nolso: a rocky ledge at about 250 m. (!). 



51. St. fuliginosa Dicks. 



On rocky letlges and in damp localities in ravines. Nolso (!); 

 Stromo: ravine near Vestmanhavn (R., !), Kirkeb6(R.); Sydero: Frode- 

 bo and Ordevig (R.\ 



Var. limbata (Sm.). 



Sydero: Hovedalen (!); Oster 6: Toftevatn (!). 



52. Cetraria islandica (L.). 



Amongst mosses; ratlier common, but not abundant. 



Var. crispa Ach. 



The most common (R., !). 



52. C. saepincola var. chiorophyila (Humb.). 



On large boulders. San do: Skopen (!); Ostero: Toftevatn (!). 



? Evernia furfuracea (L.). 



Mentioned by Landt and Lyngbye, but not found later. 



54. Parmelia saxatilis (L.). 



On rocks, over mosses and twigs; very common (R., !). 



Together with its varieties, especially omphalodes (L.), but also 

 others, e. g. var. laevls Nyl., var. panniformis Ach., var. furfuracea 

 Schaer., etc. 



55. P, olivacea (L.). 



On rocks and boulders, rare (R, !). 



Var. prolixa Ach. 



Sando: Sand; Stromo: Sandegærde (R.), Skansetangen (!); Ostero: 

 Næs (!). 



Var. fuliginosa (medulla, when treated with hypochlorite of 

 Hme, red). 



Stromo: Kirkebo (!); Vide ro: Vedvig (,!). 



56. P. lanata (L.). 



On boulders. Hcre and there (R., !). 



57. P. alpicola Th. Fr. 



Fragments on rocks (!). It is likely, that both P. physodes and P. 

 encaiista of previous authors are this species or variety as one chooses 

 to consider it. 



21* 



