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The second assessment of the threat status of Estonian lichens based on IUCN system was performed in 2019. The main basis for choosing the species to be currently assessed was the list of legally protected lichens and the list of species assigned to the Red List Categories RE–DD in 2008. Species that had been assessed as Least Concern (LC) in 2008 were not evaluated. Altogether, threat status of 229 lichen species was assessed, among them 181 were assigned to the threatened categories (CR, EN, VU), while no species were assigned to the LC category. Compared to the previous red list, category was deteriorated for 58% and remained the same for 32% of species. In Estonia, threatened lichens inhabit mainly forests (particularly dry boreal and nemoral deciduous stands), alvar grasslands, sand dunes and various saxicolous habitats. Therefore, the most frequent threat factors were forest cutting and overgrowing of alvars and dunes (main threat factor for 96 and 70 species, respectfully). Eesti samblike punane nimestik 2019 2019. aastal viidi läbi teistkordne IUCN süsteemil põhinev Eesti samblike ohustatuse hindamine. Hinnati liike, mis on riiklikult kaitstud ning liike, mis 2008. aasta hindamise järgi olid Eestis kas regionaalselt välja surnud, kriitilises seisundis, väljasuremisohus, ohualtid, ohulähedased või puuduliku andmestikuga (kategooriad RE–DD). 2008. a-l kategooriasse Soodsas seisundis (LC) kuulunud liike ei kaasatud uude hindamisse. Kokku hinnati 229 samblikuliigi ohustatust, nendest 181 kuulusid ohustatud kategooriatesse (CR, EN või VU); ükski hinnatud liik ei sobinud kategooriasse LC. Võrreldes eelmise punase nimestikuga tõusis kategooria 58% liikidel ning jäi samaks 32%-l. Ohustatud samblikuliigid asustavad Eestis peamiselt metsi (eriti palu- ja salumetsi), loopealseid, liivikuid ning erinevaid kivi-kasvupindu. Seetõttu on sagedasemad ohutegurid metsaraie ning loodude ja liivikute kinnikasvamine (oluline tegur vastavalt 96 ja 70 liigile).

Ten lichenized fungi are reported as new to Estonia: Atla wheldonii, Bacidia coprodes, Bacidina assulata, Bacidina brandii, Candelariella lutella, Gyalidea fritzei, Piccolia ochrophora, Protoparmelia oleagina, Sclerophora amabilis and Strangospora deplanata . One lichenized fungus, Leptogium subtile , has been reported from Estonia earlier, but all the specimens of this species in the herbarium of University of Tartu appeared to be misidentifications; currently the species has one certain locality in Estonia.

Two species of lichenized fungi, Bacidina sulphurella and Xanthomendoza oregana, and three species of lichenicolous fungi are reported as new for Estonia. Cited specimens are kept in the lichenological herbarium of University of Tartu Natural History Museum and Botanic Garden (TU).