Rare Lichen Species List – Alaska Center for Conservation Science

Scientific Name	Global Rank	State Rank
Acroscyphus sphaerophoroides Leveille	GNR	S1
Anaptychia bryorum Poelt	G2G4	S2S3
Aspicilia caesiopruinosa (H. Magn.) J.W. Thomson	GNR	S1
Bryoria friabilis Brodo & D. Hawksw.	G3G4	S2S3
Bryoria pikei Brodo & D. Hawksw.	G3G4	S2
Bryoria subcana (Nyl. ex Stizenb.) Brodo & D. Hawksw.	G3G5	S1
Bunodophoron melanocarpum (Sw.) Wedin	GNR	S2S3
Cavernularia lophyrea (Ach.) Degel.	G2G3	S2S3
Cladonia alaskana A. Evans	G3G4	S3
Cladonia luteoalba A. Wilson & Wheldon	G2	S1
Epigloea medioincrassata (Grumm.) Dobbeler	G2G4	S1
Erioderma pedicellatum (Hue) P. Jorg.	G1G2	S2
Erioderma sorediatum D. J. Galloway & P.M. Jørg.	G4	S2
Evernia prunastri (L.) Ach.	G5	S3?
Fuscopannaria ahlneri (P. M. Jorg.) P. M. Jorg.	G4G5	S2S3
Fuscopannaria alaskana P. M. Jorg. & Tonsberg	G1	S2
Fuscopannaria globigera Fryday & P. M. Jorg.	G1G2	S1
Glypholecia scabra (Pers.) Mull.	G3	S1S2
Heterodermia sitchensis Goward & Noble	G2G3	S2S4
Hypogymnia inactiva (Krog) Ohlsson	G3	S2S4
Hypogymnia oceanica Goward	G2G3	S3S5
Hypogymnia pulverata Nyl. ex Crombie) Elix	G5	S2
Leioderma sorediatum D.J. Galloway & P.M. Jørg.	G4	S1
Leptogium parculum Nyl.	G1	S1
Lobaria amplissima (Scop.) Forss.	GNR	S1S3
Lobaria retigera (Bory) Trevis.	GNR	S2S3
Nephroma occultum Wetmore	G4	S1
Niebla cephalota (Tuck.) Rundel & Bowler	G3G4	S1
Pannaria rubiginella P. M. Jørg. & Sipman	GNR	S1S2
Parmeliella parvula P. M. Jørg.	GNR	S2S3
Parmotrema arnoldii (Du Rietz) Hale	G3G5	S2S3
Parmotrema crinitum (Ach.) M.Choisy	G3G5	S2
Peltigera cinnamomea Goward	GNR	S2
Peltigera gowardii Lendemer & H. O'Brien	G4	S1
Phaeophyscia kairamoi (Vain.) Moberg	G3G4	S3S5
Physciella chloantha (Ach.) Essl.	G5?	S2
Pilophorus cereolus (Ach.) Th. Fr.	G3G4	S2
Pilophorus clavatus Th. Fr.	G2G4	S2S3
Placynthium stenophyllum (Tuck.) Fink	G2G4	SU
Pseudocyphellaria mallota (Tuckerman) H. Magnusson	G4	S1S3
Pseudocyphellaria perpetua McCune & Miadlikowska	G4	S2S3
Pseudocyphellaria rainierensis Imshaug	G3G4	S2S3
Pycnothelia papillaria Dufour	G3G5	S2
Pyrrhospora quernea (Dickson) Körber	G4	S1S3
Ramalina obtusata (Arnold) Bitter	G5?	S1
Ramalina subleptocarpha Rundel & Bowler	G3G5	S2S3
Rhizocarpon cumulatum J. W. Thomson	G1	S1
Stereocaulon nanodes Tuck.	G3	S1S2
Stereocaulon octomerum Müll. Arg.	GNR	S1S2
Stereocaulon pileatum Ach.	G2G4	S1S2
Stereocaulon saviczii Du Rietz	G3	S3S5
Stereocaulon spathuliferum Vainio	G4G5	S2
Sticta oroborealis Goward & Tonsberg	GNR	S2
Sticta wrightii Tuck.	GNR	S1S2
Umbilicaria angulata Tuck.	G2	S3
Umbilicaria aprina Nyl.	GNR	S1
Umbilicaria decussata (Vill.) Zahlbr.	G3?	S2
Umbilicaria havaasii Llano	G3	S2S3
Umbilicaria hirsuta (Sw. ex Westr.) Hoffm.	G2G4	S2
Umbilicaria krascheninnikovii (Savicz) Zahlbr.	G4?	S2
Umbilicaria lyngei Schol.	G3	S3
Umbilicaria rigida (Du Rietz) Frey	G2	S3
Umbilicaria scholanderi (Llano) Krog	G1	S3
Vestergrenopsis elaeina (Wahlenb.) Gyelnik	GNR	S2S3

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