LICHENES. 33f 



S. quercizans, Ach. Alossy rocks. 



S. glomerulifera, Ach. Trees and rocks. 



S. toinentosum, Koerb. Trunks. 



Xephi-oma, IcBvigatum, Ach. , Trunks, etc. 



N. Helveticum, x\ch. Trees and rocks. 



Peltigera aphthosa, Hoffm. Rocks among mosses. 



P. canina, Hoftm. Rocks among mosses. 



P. rufescens, Hoflhi. Rocks among trees. 



P. polydactyla, Hotim. Rocks among mosses. 



P. horizontalis, Hofthi. Rocks among mosses. 



P. venosa. Hoffm. Earth in woods. 



Solorina saccata, Ach. Limerocks. Burlington and 

 Westmore. 



Pannaria hmuginosa, Ach. Rocks, infertile. 



P. microphylla, Stenh. Rocks in woods. 



P. nigra, Xyl. Rocks in woods. 



P. molybdaea, var. cronia, Tuck. Rocks in mountains. 



P. crossophylla. Tuck. Rocks near streams. 



P. rubiginosa, Ach. Trees. 



P. leucosticta. Tuck. Rocks in woods. 



P. flabellosa. Tuck. Stones near streams. 



P. melamph}lla,. Tuck. Rocks near streams. 



Ephebe pubescens, Fr. Rocks in mountains. 



E. solida, Born. Rocks in streams. 



Synalissa polycocca, Nyl. Granitic rocks. 



Omphalaria phyllisea, Wahl. Granitic rocks. 



Collema pulposum, Ach. Earth. 



C leptaleum. Tuck. Trunks, 



C. nigrescens, Ach. Rocks and trunks. 



C. rvssoleum, Tuck. Granite rocks. 



C. furvum, Ach. Calcareous rocks. 



tJ. flaccidvun, Ach. Rocks. 



Leptogiiun tremelloides, Fr. Trunks and trees. 



L. lacerum, Fr. Earth among mosses. 



