Twenty five macrolichens are reported as additions to the flora of Nova Scotia. One is new to North America: Leptogium hibernicum. Five are new to the Northeast (New England and Atlantic Canada): Ephebe perspinulosa, Leptogium azureum, Leptogium intermedium, Parmeliella appalachensis and Vahliella saubinetii. Three are new to Atlantic Canada with no recent records in New England: Heterodermia leucomela, Racodium rupestre, Santessionella crossophylla. Ten are new to Atlantic Canada and uncommon in New England: Collema fuscovirens, Leptogium dactylinum, L. imbricatum, Melanelia culbersonii, Parmelinopsis horrescens, Parmotrema reticulatum, Phylliscum demangeonii, Placidium squamulosum, Pseudevernia consocians and Spilonema revertens. Four are new to Nova Scotia: Nephroma resupinatum, Placynthium flabellosum, Polychidium muscicola and Solorina saccata. Fuscopannaria praetermissa and Massalongia carnosa are recent Nova Scotia records of species of interest. Notes are given on the habitat and distribution of each species in northeastern North America.
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Vol. 29 • No. 1