REPORT OF THE STATE BOTANIST, 1898 67 1 



Cetraria aculeata {Schreb.) Fr. 

 This is a rare lichen with us and occurs here and on Mt Whiteface in 

 small quantity. The Iceland moss, C. Islandica (L.) Ach., is abundant. 



Umbilicaria proboscidea (Z.) Stenh. 



The species of Umbilicaria are not plentiful here. The three recorded 

 in the list were all found growing near each other on the same rock. 

 This one extends northward to Arctic America and Greenland. 



Thamnolia vermicular is {Sw.) Schaer. 



This singular lichen attracts attention by its pure white color. It is 

 plentiful, growing among mosses and other lichens on the thin soil of the 

 mountain tops but it is always sterile with us. Its podetia or stems are 

 simple or sparingly branched, hollow, sharp pointed 2 to 4 in. long and 

 about as thick as a goose quill. It is more abundant on Mt Mclntyre 

 than on Mt Marcy. 



Cladonia cornucopioides (Z.) Fr. 



Three Cladonias having red apothecia occur on the mountain top. 

 They are the present species, C. deformis (L.) Hoftm. and C. cristatella 

 Tuckm. The reindeer moss, C. rangiferina (L.) Hoffm., is abundant and 

 variable. There are 13 species of Cladonia represented here. In very 

 dry weather we can feel them crumble under our feet as we walk over 

 them. To a botanist who dislikes to destroy these interesting plants, this 

 is a disagreeable sensation. 



Biatora Diapensiae {Th. Fr.) Tuckfu. 



A rare lichen inhabiting Diapensia sods and not known to occur else- 

 where in our state. In Tuckermafi^s synopsis of JV. A. lichens it is credited 

 to the White mountains. Its near relative, B. granulosa (Ehrh.) Poetsch 

 is common in the Adirondacks, growing on and encrusting turfy ground, 

 dead mosses and decaying wood, both on mountain tops and in the valleys. 



Buellia geographica (Z.) Tuckm. 



This lichen is interesting because of its beauty and its habitat. It 

 grows on the hard surface of bare rocks from which it is scarcely possible 

 to detach it. It forms a thin crust over the surface and by its contrast 

 of bright yellow and black colors it attracts the attention of the observer 

 and enlivens the otherwise unattractive and gloomy appearance of the 

 dark, weather beaten surface of the rock. It carries us back in imagina- 



