Common name: Thorny Ramalina.
Ramalina willeyi is a fruticose lichen species characterized by its pendulous, strap-like thalli with a pale green to yellowish-green color. In East and Central Texas, it typically grows on trees, particularly oak and cedar, in shaded to partially shaded areas. The species is relatively common in the region, often found in areas with high humidity and moderate temperatures. Its distribution spans from the eastern part of the state to the central regions, including the Edwards Plateau and the Piney Woods.
Tuft of thorny Ramallina lichen (Ramalina willeyi) on a thin twig of a bush in a half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
803 Lakeview Ln, Somerville, TX 77879, USA
Thorny Ramallina lichen (Ramalina willeyi) with apothecia on a thin twig of a bush in a half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019803 Lakeview Ln, Somerville, TX 77879, USA
Tuft of thorny Ramallina lichen (Ramalina willeyi) together with Parmotrema on a fallen oak twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021Lake Somerville Trailway, Somerville, TX 77879, USAObservations of Ramalina willeyi in East and Central Texas show that it grows in tufts on thin twigs of bushes in half-open areas. The lichen was found at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park on multiple occasions, including January 25, 2019, and February 24, 2021. On one occasion, the thorny Ramallina lichen had apothecia, indicating reproductive activity. It was also observed growing alongside Parmotrema on a fallen oak twig, suggesting that it can coexist with other lichen species. The sightings were made in areas with some sunlight, indicating that Ramalina willeyi can thrive in partially shaded environments. Overall, the observations suggest that Ramalina willeyi is a common and adaptable species in East and Central Texas. It grows on various substrates, including twigs and branches, and can be found in different types of habitats.
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