Synonyms: Borrera obscura, Dimelaena adglutinata, Hagenia adglutinata, Hagenia elaeina, Hyperphyscia pyrithrocardia, Imbricaria adglutinata, Lecanora adglutinata, Lecanora lepraeformis, Lichen elaeinus, Lobaria obscura, Parmelia adglutinata, Parmelia cycloselis, Parmelia elaeina, Parmelia obscura, Physcia adglutinata, Physcia elaeina, Physcia obscura, Physcia pyrithrocardia, Physcia stellaris, Physciopsis adglutinata, Physciopsis elaeina, Squamaria elaeina, Xanthoria adglutinata.
Common name: Grainy Shadow-crust Lichen.
Hyperphyscia adglutinata is a crustose lichen species that grows on bark, particularly on deciduous trees such as oak, elm, and willow. In East and Central Texas, it forms small to medium-sized patches, typically 1-5 cm in diameter, with a grayish-brown to dark brown thallus and numerous black apothecia. The lichen's medulla is white, and its cortex is thin. It is often found in shaded to partially shaded areas, particularly in riparian zones and wooded slopes, where the humidity is relatively high.
Grainy shadow-crust lichen (Hyperphyscia adglutinata) (olive), bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) (golden) and other lichens on a massive cast iron fence in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
1667 FM 149, Anderson, TX 77830, USA
Grainy shadow-crust lichen (Hyperphyscia adglutinata) (olive), bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) (golden) and some greenish grey lichen on a massive cast iron fence in Odd Fellow Cemetery. Anderson, Texas, December 31, 20181667 FM 149, Anderson, TX 77830, USAIn East and Central Texas, Hyperphyscia adglutinata, also known as grainy shadow-crust lichen, has been observed growing on metal surfaces, specifically on a massive cast iron fence in Odd Fellow Cemetery, Anderson, Texas. The lichen appears olive in color and is often found in association with other species, including bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi), which has a golden color. Additionally, some greenish-grey lichens have also been noted growing alongside Hyperphyscia adglutinata on the same fence. These observations were made on December 31, 2018, suggesting that Hyperphyscia adglutinata can thrive in urban environments and tolerate the conditions found in cemeteries. The species seems to coexist with other lichens, forming diverse communities on metal substrates.
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