Foliicolous lichens, typically associated with tropical and subtropical regions, are comparatively less commonly observed in temperate climates. In 2025, during routine surveys in central New York, U.S.A., Physcia millegrana Degel was observed growing on leaves of Rhododendron at three separate locations. Although typically a bark-dwelling generalist, Physcia spp. have been documented as accidentally foliicolous in several studies. This report may represent the northernmost occurrence of foliicolous lichens in eastern North America, highlighting a need for further monitoring to determine if the lichen persists.