—34— 



8. Ceiraria islandica var. crispa Ach., Mt. Katahdin (5,000 ft.)? on ground — ^ 

 sterile. I am reproducing here [Plate III, fig. 2] a photograph of the Linnaean 

 type of Lichen islandicus which I made in London with the kind permission of 

 Dr. B. Daydon Jackson. I have yet to see absolutely typical material from 

 this country. Certainly the majority of records for the United States are refer- 

 able to the variety crispa Ach. 



9. Cetraria islandica var. Delisaei (Borr.) Schaer. = C. hiascens (Fr.) Th. 

 Fr., Mt. Katahdin (5,000 ft.), on ground — sterile. 



10. Cetraria cucullata (Bell.) Ach., Mt. Katahdin (5,000 ft.), on ground — 

 sterile, also recorded by Blake. 



11. Cetraria nivalis (L.) Ach., Mt. Katahdin (5,000 ft.), on ground — sterile,, 

 also recorded by Blake. 



12. Alectoria jubata var. implexa Hoffm.) Ach., West Branch, on conifers — 

 sterile. 



13. Alectoria chalybeiformis (L.) S. F. Gray. Kidney pond, on trees — 

 sterile. 



Group : Stratosi-Radiatae 



Family: Cladoniaceae. 



14. Baeomyces ericetorum (L.) Wain, Kidney pond, old log — fertile. 



15. Sterocaulon paschale (L.) Fr., West Branch and Mt. Katahdin (5,000 

 ft.), on ground and rocks — fertile, also recorded by Blake. 



16. Cladonia rangiferina (L.) Web., West Branch, on ground — sterile. 



17. Cladonia alpestris (L.) Rabh., Mt. Katahdin (4,000 ft.) on ground — 

 sterile, also recorded by Blake. 



{Cladonia cornucopioides (L.) Fr., recorded by Blake.] 



18. Cladonia coccifera var. stemmatina Ach,, Mt. Katahdin (3,000 ft.), on 

 ledge — fertile. 



19. Cladonia cristatella Tuck., Ambajejus Lake, on stump — fertile. With 

 fragments of Cladonia cornuta (L.) Schaer. 



[Cladonia amaurocraea (Flk.) Schaer., recorded by Blake.] 



20. Cladonia furcata (Huds.) Schrad., Ambajejus Lake — fertile. 

 [Cladonia furcata var. subulata Flk. recorded by Blake.] 

 [Cladonia squamosa Hoffm., recorded by Blake.] 



21. Cladonia squamosa f. denticollis Wain., Ambajejus Lake, on ground — 

 fertile. 



22. Cladonia turgida (Ehrh.) Hoffm., West Branch, on ground — fertile. 



23. Cladonia gracilis (L.) Willd., Mt. Katahdin (4,000 ft.), on ground — 

 fertile. 



[Cladonia verticillata Fr. recorded by Blake.] 



24. Cladonia pyxidata f. lepidophora Flk., Ambajejus Lake, on rock — fertile. 



Group: Substratosae 

 Family : Pseudophysiaceae. 



25. Pseudophyscia speciosa (Wulf.) Mull. Arg., Ambajejus Lake, on bark — 

 sterile. 



