Lecanora louisianae is a crustose lichen species characterized by its yellow-green to grayish thallus, often with a cracked or areolate appearance. In East and Central Texas, it typically grows on bark, particularly of hardwood trees such as oak and elm, and occasionally on rock. The apothecia are lecanorine, with a thin, persistent margin and a yellow to brown disc. This species is commonly found in the region's deciduous forests and woodlands, often in areas with rich soil and moderate to high humidity.
Lichen Lecanora louisianae(?) on bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
Unnamed Road, Washington, TX 77880, USA
Lichen Lecanora louisianae(?) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019Unnamed Road, Washington, TX 77880, USAObservations of Lecanora louisianae in East and Central Texas reveal its presence on various substrates. On January 23, 2019, the lichen was found growing on bark at the Washington-on-the-Brazos State Historic Site in Washington, Texas. Additionally, it was observed on an acacia (huisache) tree at the same location, indicating its ability to thrive on different types of trees. The species' appearance on both bark and a specific tree species suggests a level of adaptability and potential for widespread distribution in the region. Further observations are needed to confirm the identity of the lichen as Lecanora louisianae and to fully understand its ecological preferences and range in East and Central Texas. These findings provide insight into the lichen's habitat and substrate preferences, contributing to a broader understanding of its biology and ecology.
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