Hyperphyscia lucida is described as a new lichen species from the Netherlands on morphological grounds. It most closely resembles H. adglutinata, but differs by a whiter grey thallus, confluent or laterally imbricate, mostly flat and closely appressed, shiny lobes, a transparent prothallus, and groups of laminal pustules that develop into finely granular to coarsely isidioid soredia. Hyperphyscia lucida was found in 2020 in an area of approximately 1 km² in the freshwater tidal area the Biesbosch. Thalli were found on 14 Salix trees in the southwest of two ca 60-year-old willow forests, together with a. o. Hyperphyscia adglutinata (with apothecia), Phaeophyscia orbicularis, Xanthoria parietina and Hypnum cupressiforme. Further interesting companions include Porina byssophila, Physciella chloantha and Strangospora deplanata.