Pox lichen Pyrenula anomala on a tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas

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Sam Houston Forest, Texas, February 1, 2019

Album 2441: Sam Houston Forest, Texas, February 1, 2019

The image presents a close-up view of a tree trunk, featuring a lichen known as **Pyrenula anomala**, commonly referred to as **Pox Lichen** or **Anomalous Pyrenula**. This species is characterized by its unique appearance, which includes blackish-gray fruiting bodies that resemble small, dark, circular patches, giving it the name "pox" lichen. The image showcases a large number of these fruiting bodies on the tree bark, appearing as numerous irregularly shaped black spots.

The background color in this photograph is primarily yellow with brown undertones, suggesting that the tree has been colonized by algae or mosses. The overall appearance of the tree trunk suggests it may be an older tree, likely one growing in a shaded area.

**Tree Identification:**
Based on the presence of Pox Lichen and the background coloration, this image is most likely depicting **Quercus virginiana**, commonly known as **Southern Live Oak**. This species is native to the eastern United States and is often found growing in wetland areas. The live oak is a slow-growing tree that can reach ages over 600 years old. The species is highly valued for its large, spreading canopy and attractive foliage.

**Conclusion:**
The image depicts a close-up view of the trunk of an older **Southern Live Oak (Quercus virginiana)** tree growing in wetland areas, colonized by Pox Lichen or Pyrenula anomala. – AI vision

🇪🇸 Descripción en español / Spanish Description

El líquen Pyrenula anomala en una corteza de árbol en el área escénica de Big Creek del bosque nacional Sam Houston. Shepherd, Texas, 1 de febrero de 2019. La imagen presenta una vista detallada de un tronco de árbol, con un líquen conocido como **Pyrenula anomala**, comúnmente denominado **líquen pústulo** o **Pyrenula anomala**. Esta especie se caracteriza por su aspecto único, que incluye cuerpos fructíferos negruzcos grises que se parecen a pequeñas manchas circulares oscuras, dándole el nombre de líquen "pústulo". La imagen muestra una gran cantidad de estos cuerpos fructíferos en la corteza del árbol, apareciendo como numerosas manchas irregularmente conformadas negras. El fondo de esta fotografía es principalmente amarillo con tonalidades marrones, lo que sugiere que el árbol ha sido colonizado por algas o musgos. La apariencia general del tronco de árbol sugiere que puede tratarse de un árbol más viejo, probablemente uno que crece en una zona sombreada.

**Identificación del árbol:** Basándose en la presencia de líquen pústulo y la coloración de fondo, esta imagen muestra muy probablemente **Quercus virginiana**, comúnmente conocido como **Southern Live Oak**. Esta especie es nativa del este de los Estados Unidos y se encuentra a menudo creciendo en zonas húmedas. El roble vivo puede llegar a ser un árbol lento que alcanza edades superiores a los 600 años. La especie es muy apreciada por su gran copa expansiva y su foliaje atractivo.

**Conclusión:** La imagen muestra una vista detallada del tronco de un viejo árbol **Southern Live Oak (Quercus virginiana)** que crece en zonas húmedas, colonizado por líquen pústulo o Pyrenula anomala. – Spanish translation

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