228 MICHIGAN SURVEY, 1908. 



shore. Very abundant. Also on conglomerate. Gives a striking dark: 

 orange color to the clifiEs along the main shore and on surfaces of small 

 rock reefs and islands. I, 1; V, 2. The most striking lichen of the 

 crustaceous lichen zone. 



17. Lecanora riihina (Vill.) Ach. In foliose lichen zone. Xot com- 

 mon. V, 2. 



18. Lecanora mm^alis Schrieb. In low rockj' reefs scarcely above 

 tile action of summer waves. I, 1. Not abundant. 



19. Lecanora friistulosa (Dichs.) Ach. Rocky shores and cliflf faces, 

 also in patches among parmelias. I, 1; V, 2. 



20. Lecanora subfusca allopluina Ach. Eocky shores and exposed 

 rocks. Fairly common, I, 1; V, 2. 



21. Lecanora cinerea, , gib})Osa (Ach.) Nyl. Back 20-25 feet from, 

 water's edge in second or foliose lichen zone, in lower edge of same> 

 V, 2. 



22. Stereocaulon coralloides Pr. In foliose lichen zone. V, 2. 



23. Stereocaulon paschale (C) Ach. Eocky openings near Siskowit 

 cabin. V, 3. Not abundant. 



24. Cladonia rangiferina (C) Web. Very common in cladonia zone 

 on all parts of shore where cladonias occur. Probably most abundant 

 of all cladonias noted. 



25. Cladonda sylvatica (C) HofTm. Very common in cladonia zones. 

 Lighter and smaller than preceding. Common in V, 2; I, 1. 



26. Oladonia alpestris (L). One of the principal forms in cladonia 

 zone in the shore-heath series. Common. I, 1; V, 2. 



27. Cladonia coccifera (C) Willd. Thin earth on exposed rocks. 

 Fairly common. II, 3; V, 7 (in burned ai'ea). 



28. Cladonia deformis (C) Hofifm. On partly decayed bark and wood 

 of fallen trees. Not common. V, 4. 



29. Cladonia cristatella Tuck. On old wood. V, 4. 



30. Cladonia crispata (Ach.) Fib. Forest trail Siskowit. Also found 

 growing into moss patches in woods. V, 4. 



31. Cladonia amoaurocraea (Flk.) Schaer. A cladonia in heath- 

 cladonia zone at Eock Harbor, I, 1. Patches of this are being invaded 

 by moss. 



32. Cladonia furcata pinnata Flk. Growing along cabin trail oi* 

 debris, and on fallen conifers. V, 4. Not abundant. 



33. Cladonia turffida (Ehrh.) HofEm. Growing on thin humus ac- 

 cumulation on open rocky places, V-, 4. Also along portage to Siskowit 

 Lake (V, 9). 



34. Cladonia gracilis dilatata (Hofifm.) Wain. On thin humus cover- 

 ing of bed rock. Natural forest "openings." V, 4, 3. 



■j5. Cladonia nrtivillata Hoffm. Woods and rock clearing at Sis- 

 kowit Bay station, V, 4, 5. 



36. Cladonia pyxidata (C) Hoffm. Eock shore in foliose and fruiti- 

 cose lichen zones. V, 2. Not abundant. 



37. Cladonia fimhriata simplex (Weis) Wainio. On decaying bark 

 of fallen trees in forest. Forest trail from Washington Harbor to Lake 

 Desor. 



38. Cladonia fimhriata coniocraea (Flk.) Wainio. Bark of falleik 

 trees in forest along Siskowit cabin trail. V, 4. Not abundant. 



