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U.S. Forest Service

Lichens Photo Gallery

Foliose Lichens

Click the thumbnail images below to see larger images of the lichens.

  • Ahtiana aurescens

    Ahtiana aurescens. Photo by Don Flenniken.

  • Caloplaca decipiens

    Caloplaca decipiens. Photo by Rick Demmer.

  • Cetraria laevigata

    Cetraria laevigata (sun form; erect foliose). Photo by Ralph Pope.

  • Cetraria laevigata

    Cetraria laevigata (erect foliose). Photo by Ralph Pope.

  • Flavocetraria cucullata

    Flavocetraria cucullata (detail). Photo by Ralph Pope.

  • Flavocetraria cucullata habitat

    Flavocetraria cucullata. Photo by Ralph Pope.

  • Gymnoderma lineare

    Gymnoderma lineare (squamulose). Photo by Hugh Nourse.

  • Heterodermia hypoleuca

    Heterodermia hypoleuca. Photo by Don Flenniken.

  • Heterodermia leucomelos

    Heterodermia leucomelos. Photo by Don Flenniken.

  • Hypogymnia physodes

    Hypogymnia physodes. Photo by Ralph Pope.

  • Hypogymnia spp.

    Hypogymnia sp. Photo by Karen Dillman.

  • Lasallia papulosa

    Lasallia papulosa. Photo by Ralph Pope.

  • Leptogium dactylinum

    Leptogium dactylinum. Photo by Don Flenniken.

  • Lobaria amplissima

    Lobaria amplissima. Photo by Karen Dillman.

  • Lobaria amplissimia

    Lobaria amplissima (fertile). Photo by Karen Dillman.

  • Lobaria linita

    Lobaria linita. Photo by Karen Dillman.

  • Lobaria oregana

    Lobaria oregana. Photo by Karen Dillman.

  • Lobaria pulmonaria

    Lobaria pulmonaria (dry). Photo by Karen Dillman.

  • Lobaria pulmonaria

    Lobaria pulmonaria (wet). Photo by Ralph Pope.

  • Lobaria scrobiculata

    Lobaria scrobiculata (dry). Photo by Chantelle DeLay.

  • Lobaria scrobiculata

    Lobaria scrobiculata (wet). Photo by Chantelle DeLay.

  • Melanelia exasperatula

    Melanelia exasperatula. Photo by Rick Demmer.

  • Melanelia hepatizon

    Melanelia hepatizon. Photo by Ralph Pope.

  • Nephroma resupinatum

    Nephroma resupinatum. Photo by Karen Dillman.

  • Nephroma resupinatum with Peltigera collina

    Nephroma resupinatum with Peltigera collina and mushroom. Photo by Karen Dillman.

  • Parmelia saxatilis

    Parmelia saxatilis. Photo by Rick Demmer.

  • Parmelia saxatilis

    Parmelia saxatilis. Photo by Karen Dillman.

  • Parmelia sulcata

    Parmelia sulcata. Photo by Rick Demmer.

  • Parmeliopsis ambigua and Parmeliopsis hyperopta

    Parmeliopsis ambigua (yellow) and Parmeliopsis hyperopta (grey). Photo by Larry St. Clair.

  • Parmotrema crinitum

    Parmotrema crinitum. Photo by Karen Dillman.

  • Peltigera apthosa

    Peltigera apthosa (notice the orange medulla of Solorina crocea). Photo by Larry St. Clair.

  • Peltigera canina

    Peltigera canina (dry). Photo by Larry St. Clair.

  • Peltigera canina

    Peltigera canina (wet). Photo by Doug Ladd.

  • Peltigera hydrothyria

    Peltigera hydrothyria. Photo by Karen Dillman.

  • Peltigera membranaceum

    Peltigera membranaceum (dry). Photo by Karen Dillman.

  • Peltigera rufescens

    Peltigera rufescens. Photo by Chris Wagner.

  • Peltula cylindrica

    Peltula cylindrica (minutely foliose). Photo by Hugh Nourse.

  • Physcia caesia

    Physcia caesia. Photo by Larry St. Clair.

  • Placidium squamulosum

    Placidium squamulosum. Photo by Doug Ladd.

  • Platismatia glauca

    Platismatia glauca. Photo by Karen Dillman.

  • Platismatia lacunosa

    Platismatia lacunosa. Photo by Karen Dillman.

  • Pseudocyphellaria anomala

    Pseudocyphellaria anomala. Photo by Karen Dillman.

  • Pseudocyphellaria rainierensis

    Pseudocyphellaria rainierensis. Photo by Karen Dillman.

  • Psora cerebriformis

    Psora cerebriformis (squamulose). Photo by Larry St. Clair.

  • Psora decipiens

    Psora decipiens (squamulose). Photo by Larry St. Clair.

  • Psora nipponica

    Psora nipponica (squamulose). Photo by Rick Demmer.

  • Psora pseudorussellii

    Psora pseudorussellii (dry). Photo by Doug Ladd.

  • Psoroma hypnorum

    Psoroma hypnorum (squamulose). Photo by Larry St. Clair.

  • Punctelia subrudecta

    Punctelia subrudecta. Photo by Larry St. Clair.

  • Rhizoplaca chrysoleuca

    Rhizoplaca chrysoleuca (umbilicate). Photo by Rick Demmer.

  • Rhizoplaca melanopthalma

    Rhizoplaca melanophthalma (umbilicate). Photo by Larry St. Clair.

  • Solorina crocea

    Solorina crocea. Photo by Karen Dillman.

  • Solorina crocea

    Solorina crocea. Photo by Larry St. Clair.

  • Speerschneiderra euploca

    Speerschneidera euploca (minutely foliose). Photo by Doug Ladd.

  • Sticta beauvoisii

    Sticta beauvoissii. Photo by Hugh Nourse.

  • Sticta spp.

    Sticta wrightii. Photo by Karen Dillman.

  • Tuckermannopsis ciliaris

    Tuckermannopsis ciliaris. Photo by Hugh Nourse.

  • Umbilicaria americana

    Umbilicaria americana. Photo by Chantelle DeLay.

  • Umbilicaria phaea

    Umbilicaria phaea. Photo by Chris Wagner.

  • Umbilicaria torrefacta

    Umbilicaria torrefacta. Photo by Larry St. Clair.

  • Vulpicida canadensis

    Vulpicida canadensis. Photo by Rick Demmer.

  • Xanthomendoza fallax

    Xanthomendoza fallax. Photo by Larry St. Clair.

  • Xanthomendoza montana

    Xanthomendoza montana. Photo by Larry St. Clair.

  • Xanthoparmelia coloradoensis

    Xanthoparmelia coloradoensis. Photo by Rick Demmer.

  • Xanthoparmelia plittii

    Xanthoparmelia plittii. Photo by Larry St. Clair.

  • Xanthoria candelaria

    Xanthoria candelaria. Photo by Karen Dillman.

  • Xanthoria elegans

    Xanthoria elegans. Photo by Larry St. Clair.

  • Xanthoria parietina

    Xanthoria parietina. Photo by Terry Fennell.

Fruticose Lichens…