SOi Bji, JjWder ltnds.vt ox the 



The foUowiug are the lichens not found by myself, but recorded 

 in my * Flora ' as having been collected by the numerous botanical 

 travellers who have during the last century visited Iceland : 



1. Collema nigrescenSy Ach. 



■ 



2. SplKsropTioroii fragile^ Pers. 



3. Ste7'eo€auIo)i tomeiitositm^ Laur., and var. inemstatitmy Flk. 



4. ThamnoUa vcrmicidaris^'h, (Yahl). 



5. Usnea harlata, Fr., var. hirtct^ L. 



6. Alectoria jiibata^ L. 



7. A, ocJiroleicea, Ehrh., and var. sarmentosay Ach. 



8. Everniafiirfaracea^ Mann. 



9. E. primastri^ L. 



10. Bamalina ealicaris, Ach., and vars. fraxineaj L., and frrU 



11. Flatysma FaJdunense, L. 



12. Nephromium to^nentoswn^ Hffm. 



13. Feltigera aplthosa^ Hifm. [Steenstrup]. 



14. P. venosaj Hffm, 



15. P. riffescens, Hffm. 



16. Solorina saccata^ L. [Steenstrup] ♦ 



17. ^S'. crocea^ L. 



18. Sticta puhnonacea^ Ach. 



19. S. scrohiculata^ Scop. 



20. Parmelia pligsodes^ L. 



21. P. olivacea, L. 



22. P. stjjgia^ L. 



23. Physcia candelaria, Ach. 



24. P. ciliaris, L. 



25. UmUUcaria jyustulata, Hffm. 



r — 



5. HamaUna imhjmorpha, Ach., Valil. 



6. Umbilicaria arcttca, Acli., Morck. 



-ri 



7. Parmelia encansta, Sw„ Steenstrup. 



The P. ^rcz-zVa mentioned, on Dr. Nylander'^^ authority, at p. 379 does not 

 occur in Th. Fries's L. Arct. Probably the lichen referred to really belongs 

 either to P. encaitsfa or P. alpicola, Th. Fr. L. Arct. 57. 



8. Thyacia ohscura, Ehrh., Steenstrup. 



9. Pcnmana prcsiermissa, Xyl. Scand. 124 & 290 [P. lepidiofa, Tl^- ^'■'■''' 



Arct. 74]. 



10. Z^cxfl'frt decijjiens, Ehrh., Steenstrup. 



11. L.fusco-Iufca, Dicks/[(7a/o^/rtm, Th. Pr. L. Arct. 121], Vahl. 



12. Urceolaria serif posa, Ach. 



This number added to 135 gives 147 n.s th(^ present total recorded Lichen- 

 flora of Iceland. 



