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LICHENES BRITANNICI EXSICCATL 



Eddidit Rev. J, M. Crombie. 



Centuria I, 



Mr. Crombie has just issued, as above, the First Century of his 

 Lich. Brit. Exs., containing, as will be perceived from the follow- 

 ing list, a large number of the rarer and also of the recently 

 detected British Lichens, which are, consequently, not included in 

 the published Exsiccati, either of Mudd or Leighton : — 



No. 



1. Lichina pygmfea. Ag. 



2. Collemopsis Schtereri. (Mass.) 



3. Collema myriococcum. Ach. 



4. Collema pulposum. Bernh. 



5. Leptogium saturninum. Dcks. 



6. Leptogium Burgessii. {Lghft.) 



7. Leptogium microscopicum. N?/L 



8. Myriangium Duritei. 3Int. 



9. Calicium trajectum. iVyZ, 



10. Coniocybe furfuracea. (L.) 



11. Acolium stigonellum. Ach. 



12. Bfeomyces rufus. D.C. 



13. Thamnolia vermicularis. (Sw.) 



14. Roccella phycopsis. Ach. 



15. Roccella fuciformis. (L.) 



16. Usnea barbata, var. florida. (i.) 



17. Usnea barbata, var. articulata. Ach. 



18. Alectoria ochroleuca, var. cincinnata. Er. 



19. Alectoria nigricans. Ach. 



20. Alectoria lanata, var. parmelioides. Cromb. 



21. Eamalina calicaris. Fr. 



22. Eamalina farinacea. L. 



23. Eamalina scopulorum, var. subfarinacea. Nyl. 



24. Platysma nivale. (Z.) 



25. Platysma commixtum. Nyl. 



26. Parmelia conspersa. Ach. 



27. Parmelia saxatilis. L. 



28. Parmelia, saxatilis var. sulcata. Tayl. 



29. Parmelia perforata. Ach. 



30. Parmelia perlata, var. ciliata. Schcer. 



31. Parnjelia physodes. (Z.) 



32. Parmelia alpicola. Th. Fr. 



33. Stictina Thouarsii. Del. 



34. Stictina crocata. (L.) 



35. Stictina limbata. (^Sm.) 



VOL. III. 7 



