The threatened macrolichens of Norway - 1995

The responsibility species

Norway still has large populations of several species that are regarded as threatened or extinct in neighbouring countries and in continental Europe, and thus has a large responsibility for conservation of a number of species. Three categories of responsibility species may be defined:
World responsibility species: Species that are absent from or are regarded as EX, E, or V in all parts of its extra-Norwegian range, and are regarded as less threatened in Norway than in any other country with available red list.

Species: Parmeliopsis esorediata.

Note: Lack of red lists or details of status for many species in most countries of the world makes it difficult to use this category. Only the endemic Parmeliopsis esorediata is included in this study. It is possible that Fuscopannaria ahlneri, Fuscopannaria sampaiana, Parmeliella parvula, and Pseudocyphellaria norvegica should also be included, but the status of extra-European populations of these species is unknown.

European responsibility species: Species that are absent from or regarded as EX, E, or V in Sweden, Finland, and the EU, and are regarded as less threatened in Norway than in any of the three other areas.

Species: Arctocetraria andrejevii, Bryoria americana, Bryoria glabra, Bryoria tortuosa, Cladonia alpina, Collema leptaleum, Erioderma pedicellatum, Fuscopannaria ahlneri, Fuscopannaria sampaiana, Lobaria amplissima, Lobaria hallii, Lobaria virens, Parmeliella parvula, Pseudocyphellaria norvegica, Ramalina thrausta, Sterocaulon arenarium, Umbilicaria dendrophora, and Usnea longissima.

Note: For Fuscopannaria ahlneri and Ramalina thrausta the criteria are not entirely fulfilled. Norway has, however, the largest population of these species in Europe.

Fennoscandian responsibility species: Species that are absent from or regarded as EX, E, or V in Sweden and Finland, and are regarded as less threatened in Norway than in both the other countries.

Species: Asahinea chrysantha, Brodoa atrofusca, Bryoria smithii, Bunodophoron melanocarpus, Cetrelia olivetorum, Cladonia fragilissima, Cladonia imbricarica, Cladonia umbricola, Collema fasciculare, Collema subflaccidum, Degelia atlantica, Degelia plumbea, Flavoparmelia caperata, Fuscopannaria ignobilis, Glypholecia scabra, Heterodermia speciosa, Hyperphyscia adglutinata, Hypotrachyna afrorevoluta, Hypotrachyna laevigata, Hypotrachyna revoluta, Hypotrachyna sinuosa, Leptogium burgessii, Leptogium cochleatum, Leptogium corniculatum, Leptogium hibernicum, Lichina pygmaea, Melanelia laciniatula, Pannaria conoplea, Pannaria rubiginosa, Parmeliella testacea, Parmelina pastillifera, Parmotrema arnoldii, Parmotrema chinense, Parmotrema crinitum, Peltigera britannica, Peltigera frippii, Peltula euploca, Physcia dimidiata, Physcia leptalea, Pilophorus strumaticus, Platismatia norvegica, Pseudocyphellaria crocata, Pseudocyphellaria intricata, Punctelia stictica, Punctelia subrudecta, Ramalina baltica, Staurolemma omphalarioides, Stereocaulon coniophyllum, Stereocaulon delisei, Sticta canariensis, Sticta fuliginosa, Sticta limbata, Sticta sylvatica, Usnea fragilescens agg., and Xanthoparmelia protomatrae.

Note: For Bryoria smithii and Cetrelia olivetorum the criteria are not entirely fulfilled. Norway has, however, the largest population of these species in Europe.