Synonyms: Aspicilia hypospilota, Aspicilia oreinoides, Carbonea oreinoides, Lecanora hypospilota, Lecidea angolensis, Lecidea lactea, Lecidea mundula, Lecidea oreinodes, Lecidea oreinoides, Lecidea pantherina, Lecidea tennessensis.
Common name: Sunken Rim-lichen.
Lecanora oreinoides is a crustose lichen species characterized by a pale to dark grayish-brown thallus, often with a powdery or farinose appearance. In East and Central Texas, it typically grows on trees, particularly oak and cedar, as well as on rocks and soil. The apothecia are lecanorine, with a pale disk and a thin, involute margin. This species is relatively common in the region, often found in areas with full sun to partial shade and moderate to low humidity.
Sunken rim-lichen (Lecanora oreinoides) or may be Aspicilia on sandstone outcrops in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
White crust of sunken rim-lichen (Lecanora oreinoides) on sandstone outcrops in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Texture of sunken rim-lichen (Lecanora oreinoides) on sandstone outcrops in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Pattern of white crust of sunken rim-lichen (Lecanora oreinoides) on sandstone outcrops in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Sunken rim-lichen (Lecanora oreinoides) and peppered rock-shield lichen (Xanthoparmelia conspersa) on sandstone outcrops in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Peppered rock-shield lichen (Xanthoparmelia conspersa) and sunken rim-lichen (Lecanora oreinoides) on a rock at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019Observations of Lecanora oreinoides in East and Central Texas reveal that it grows on sandstone outcrops in oak and red cedar forests. The lichen forms a white crust with a distinctive texture and pattern. It is often found alongside other lichens, such as Xanthoparmelia conspersa. On January 25, 2019, at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park, Lecanora oreinoides was observed on sandstone outcrops with a sunken rim appearance. The lichen's texture and pattern were notable, with a white crust forming on the rock surface. Co-occurrence with Xanthoparmelia conspersa was also observed, with both species growing together on rocks in the area. These observations provide insight into the habitat and growth patterns of Lecanora oreinoides in East and Central Texas. The lichen's preference for sandstone outcrops is evident.
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