New lichen in the mangrove swamps of the Colombian Caribbean coastThe lichen Peltigera sp. was found in Caño Arroyo de Plata (10°08'06.5"N, 75°32'35.8"W; Dept.Bolivar, Colombia) associated exclu sively to the red mangrove (Rhizophora man grove) and only in plants that were deteriorated or undergoing degradation.Tree mortality was 43 %.Mangroves: Avicennia germinans, Pelliciera rhizophorae, Laguncularia race mosa, which set.Soil sandy, compact and with salt cristals (temperature 27.9-28.4°,salinity 36.4-48.5%0,oxygen 0.4-0.6 mil, pH 5.3-5.9).
