329 



111. Biatora coarctata Sm. and var. elachista (Ach.), Lecidea 



coarclata Nyl. Rostr. p. 99. 



On rocks and i^ebbles, particularly in dani]) i)laces. Rathcr com- 

 nion (R., !). 



112. B. vernalis (L.), Lecidea vernalis Ach. Roslr. p. 99. 

 Hesto (R.). 



113. B. Berengeriana (Mass.), Lecidea miscella Ach. Rostr. p. 100. 



On the ground. S tro ni 6: Thorshavn; Sydcro: Frodebo i R.). 



114. B. sanguineo-atra (WuH'en), Lecidea saiujiiineo-afra Ach. 



Rostr. p. 100. 



On the ground. S tro ni 6: Thorsliavn; Sy de ro: Frodebo and 

 Ordevig (R.). 



115. B. fuscorubens Nyl. 



On rocks. S tro ni 6: Gjanore (!); Sydero: Ornefjæld (!). Hardly a 

 variety of the preceding. 



116. B. uliginosa (Schrad.). 



On earthen walls. Sando: Grothusvatn (I); peaty ground on Sj'- 



dero (,!). 



117. Lecidea parasema Ach. with its varr. latypea Ach. and 



pilularis Dav. 



The main species on trees at Thorshavn {R.\ The varr. conimon 

 on rocks R., !). 



118 (a). L. contigua (Hoffm.) and its state flavicunda (Ach.). The 



varr. platycarpa (Ach.), crustulata (Ach.) (often with sinuose para- 



pliyses), cyanothalama Nyl. 



On rocks and pebbles. All the forms common ; perhaps particularly 

 the main (R., !). 



119 (b). L lapicida Ach. 



On rocks. Stromo: Varden; Svin o (!); Sydero: Famien (!). 



120 (c). L. lithophila Ach. 

 On rocks. Common (R., !). 



L. paratropa Nyl. in Rostrup's Fær. Fl. p. 100 et Hue Addenda 

 No. 1240 has characters common both with L. lapicida and L. litho- 

 phila. Can hardly be well defined. 



121 (d). L. polycarpa Fik. 



On rocks. Vaago: Sorvaagsvatn (!). 



The only specimens, in which the thallus gives red reaction 

 when treated with hydrate of potash. 



