Bright red apothecia top an usnic yellow Cladonia with a heavily squamulose podetia
Cladonia bellidiflora, one of several conspicuous cladonia lichens observed during a recent Northwest Lichenologist foray to a coastal dune ecosystem in Lane County, Oregon.
09.04.2025 04:53
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Lobate apothecia
Habit view of gray green foliose lichen with elongate lobes and central lo ate apothecia
Physconia americana is a common lichen species along the west coast of North America distinguished within the genus by its lobulate apothecia. Seen here growing on Garry Oak in the hills above Gold Hill, Jackson County Oregon.
03.04.2025 17:11
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Usnic yellow colored foliose lichen with tan apothecia appearing like candle wax over whitebark pine bark
Cetraria sphaerosporella is a species unique to Northwest North America where it commonly grows on whitebark pine, as seen here near Sunrise in Washington’s Mt. Rainier National Park.
31.03.2025 02:56
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Gray rock tripe with frosty ridges and small black apothecia
Umbilicaria polaris a common rock tripe of high peaks in Oregon, seen here on granite near the peak of Mount Ashland along the Siskiyou Crest in Jackson County.
26.03.2025 02:56
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Yellow-green foliose lichen with narrow lobes with terminal soralia and dichotomously branched rhizines
Hypotrachyna sinuosa a widespread species commonly encountered in low elevation riparian forests in the Pacific Northwest, seen here on Oregon ash in a riverside swamp in Lane County, Oregon.
22.03.2025 05:24
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Mostly but not strictly, it does occur inland in a few locations on the west slopes of the Cascades
21.03.2025 18:24
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Foliose gray-purple pannarioid with red marginate apothecia forming a rosette on a willow branch
Pannaria oregonensis is a rare species endemic to moist lowland habitats of northwest North America, seen here on Hooker’s willow in a costal dune complex on the central Oregon coast.
21.03.2025 03:54
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Foliose cyanolichen with yellow medulla and reddish apothecia on its underside
Nephroma laevigatum is a conspicuous kidney lichen distinguished by the dark yellow to orange medulla, seen in an Oregon ash swamp near the Row River in Lane County, Oregon.
19.03.2025 04:33
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Shrubby gray-white fruticose lichen clustered on seashore rock
Niebla homalea is a somewhat common fruticose lichen on seashore rocks in the fog zone of California found from near the San Francisco Bay Area in the north south through Baja, seen here at Duncan Beach State Park in coastal Sonoma County.
17.03.2025 04:28
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Black jelly lichen with warty laminal ididia growing on twigs
Gabura insignis is a unique hypercoastal cyanolichen in the Pacific Northwest distinguished by its wrinkled warty isidiate thallus that greatly expands when wet, seen here in a dry state growing on conifer twigs at the mouth of the Salmon River, Lincoln County Oregon.
15.03.2025 03:35
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Foliose rag lichen with white upper surface and black underside growing on a twig
Details of lobe margin with sinuose soralia
Platismatia wheeleri is a common epiphyte of hardwoods in the Mediterranean climate of southwestern Oregon, distinguished among local rag lichens by the sinuous marginal soralia. Seen here on black hawthorn along Babe Creek in the Cascade mountains of Jackson County.
14.03.2025 02:33
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Brown apothecia on chartreuse fruticose thallus
Vulpinic colored lichen on conifer branch
Letharia columbiana is a common endemic wolf lichen in the inland Northwest. It is distinguished by the chartreuse colored thallus from vulpinic acid and the prominent brown apothecia, seen here near Cottonwood Meadow Lake in Fremont-Winema National Forest, Lake County, Oregon.
12.03.2025 03:35
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Large foliose lichen with strap-like lobes with mint green upper surface, light orangish white underside with white spots (pseudocyphellae) and prolific marginal lobules
Large colony of old-growth specklebelly in ancient forest understory
Pseudocyphellaria rainierensis is a specklebelly lichen restricted to ancient stands of old-growth and endemic to the Pacific Northwest temperate rainforest, seen here along the Ohanapecosh River, Lewis County, Washington.
11.03.2025 03:59
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White foliose lichen with adnate lobes and large maroon apothecia
Parmelina coleae is a epiphytic lichen characteristic of the Mediterranean type climate of the California Floristic Province, seen here growing on an ancient Garry oak at the northern edge of its range at Upper Table Rock in Jackson County, Oregon.
09.03.2025 05:00
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Large lungwort lichen with green and orangish upper surface color
Lungwort with smooth edges and conspicuous scattered orange apothecia
Lobaria linita is a conspicuous lungwort lichen of northern forests in western North America seen here at Memorial Beach on Prince of Wales Island in the Tongass National Forest, Alaska.
08.03.2025 05:43
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Fruticose cyanolichen growing among mosses and other lichens
Ricasolia amplissima ssp. amplissima occurs only as a dendriscocauloid cyanomorph in southern Oregon, seen here growing on a horizontal branch of an ancient Garry oak in a lichen rich oak savannah near Antelope Creek in the foothills of the Cascade Mountain of Jackson County.
07.03.2025 04:17
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Good question, it can reliably be found about as far south as Eugene, the southern end of the Willamette Valley. It’s a tricky one, good photos are a must, from a quick glance the few California inaturalist observations seem to be either Platismatia wheeleri or Parmotrema, or too blurry to tell
06.03.2025 16:04
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White foliose parmelioid lichen with elongate soralia on thallus margins, pseudocyphellae in the form of subtle white dots are found on both the upper and lower surfaces
Moist branch dwelling thallus
Cetrelia cetrarioides is an uncommon rag lichen living on red alder in low elevation riparian forests in the Pacific Northwest. Distinguished by pseudocyphellae on the upper & lower surfaces & elongate soralia along smooth thallus margins. Seen here along Mill Creek in downtown Turner, Oregon.
06.03.2025 04:21
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Gray foliose cyanolichen with red apothecia with white rims
Pannaria rubiginosa is an oceanic cyanolichen seen here in a moist state of hydration in an ancient Atlantic hazel woodland at Burren National Park, Corofin, Co. Clare, Ireland
05.03.2025 02:38
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Foliose cyanolichen with prolific marginal lobules growing on small twig
Brownish kidney lichen with marginal lobules growing on small conifer branch
Nephroma tropicum is a commonly encountered kidney lichen in the rainforests of the Pacific Northwest, distinguished among local Nephroma species by the abundant marginal lobules. Seen here along the Nisqually River in the Longmire Springs area of Mount Rainier National Park, Washington.
04.03.2025 04:21
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Sounds like fun! I’m in, I’ll pick something from the backyard, for easy access
04.03.2025 02:50
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Large white crustose lichen having large black apothecia with thalline margins
Tephromela atra var. atra is a conspicuous crustose lichen with a cosmopolitan distribution seen here on coastal rocks at
Trá na bhForbacha, Furbo, County Galway, Ireland
03.03.2025 05:03
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Distinctly vulpinic yellow foliose lichen growing on pine branch
Vulpicida canadensis is a lichen endemic to northwestern North America. Quite common in pine forests east of the Cascade Mountains, it is more localized on the westside, such as the specimen seen here on the branch of an open grown shore pine on Cypress Island, Washington.
01.03.2025 05:34
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Foliose lichen with black apothecia with thalline margins
Dirinaria species, epiphytic on manchineel trunk seen here in a beach front forest at Playa Malpaso, Bahía de Banderas, Nayarit, México
28.02.2025 01:42
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Elongated white thallus with long black marginal cilia
Habit photo
Lobe tip bearing soredia on under surface
Leucodermia leucomelos is a widespread oceanic species seen here in the subtropical laurisilva forest of Quinta do Santo da Serra, Machico, Madeira
26.02.2025 04:43
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Thin-lobed white foliose lichen with prolific black cupped and white rimmed apothecia
Physcia alnophila is a common hardwood dwelling rosette lichen in the Cascade Mountains, seen here on willow near Frog Creek in Jackson County, Oregon
25.02.2025 05:12
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Light yellow bubbly crustose lichen with tan apothecia growing over black and white granitic rock
Protoparmeliopsis pinguis is a regularly encountered species on the central California coast. A fog moistened thallus is seen here growing on granitic rock at the Bodega Marine Reserve in Sonoma County.
24.02.2025 04:52
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Solorina crocea is a unique tripartite arctic-alpine pelt lichen whose orange colored medulla is due to an anthraquinone pigment known as solorinic acid. Seen here on an alpine ridge on the flanks of Tahoma near Sunrise in Mount Rainier National Park, Washington.
23.02.2025 03:55
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Large white foliose lichen with prolific labriform soralia
Parmotrema cristiferum, a pantropical ruffle lichen seen growing as an epiphyte at Ho’omaluhia Botanical Garden, O’ahu, Hawaii
22.02.2025 04:29
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Abundant white apothecia of crustose lichen growing over spikemoss
Ochrolechia upsaliensis is a familiar bryophilous lichen seen here growing over Wallace's spikemoss on an exposed rock outcrop in the upper reaches of the Lake Creek watershed, Jackson County, Oregon
21.02.2025 05:39
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