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distinguished by apothecia (always at length exceeding the crust) of 
twice the size. It is difficult not to consider our two plants distinct: but 
Koerber (Parerg. p. 234) and Th. Fries (Lich. Arct. p. 236) are of a 
different opinion as to the European; the latter remarking also that 
Wahlenberg’s specimens of his (original) v. alpicola offer no differences 
in the spores from a. 
