Button lichen (Buellia) on limestone near the river in Pedernales Falls State Park. Johnson City, Texas

🎞️ #2429-04

The photograph presents a close-up view of button lichens growing on a weathered limestone surface adjacent to the Pedernales River within Pedernales Falls State Park. The dark gray background exhibits cracks and fissures, providing a natural habitat for the lichens.

Several button lichens are visible in various stages of growth and decay. Some have grown together to form larger colonies, while others remain solitary or grow as small clusters. A light grayish-white crust covers most parts of the rock surface, with some areas displaying varying shades of yellow, green, brown, black, and tan hues.

The button lichens are characterized by their circular growth patterns, featuring dark-colored centers surrounded by concentric rings of lighter-colored material. The overall image captures a detailed view of these small organisms growing on the limestone surface, showcasing their unique characteristics and adaptations to this environment. – AI vision

🇪🇸 Descripción en español / Spanish Description

El líquen botón (Buellia) en piedra caliza cerca del río en el Pedernales Falls State Park. Johnson City, Texas, 11 de enero de 2019. La fotografía presenta una vista de primer plano de los líquenes botón que crecen en una superficie de piedra caliza erosionada junto al río Pedernales dentro del Parque Estatal Pedernales Falls. El fondo gris oscuro exhibe grietas y fisuras, proporcionando un hábitat natural para los líquenes. Varios líquenes botón son visibles en diferentes etapas de crecimiento y descomposición. Algunos han crecido juntos para formar colonias más grandes, mientras que otros permanecen solitarios o crecen como pequeñas agrupaciones. Una costra blanquecina cubre la mayor parte de la superficie rocosa, con algunas áreas mostrando tonalidades variables de amarillo, verde, marrón, negro y rosa. Los líquenes botón se caracterizan por sus patrones de crecimiento circulares, con centros de color oscuro rodeados por anillos concéntricos de material más claro. La imagen global captura una vista detallada de estos pequeños organismos que crecen en la superficie de piedra caliza, mostrando sus características y adaptaciones únicas a este entorno. – Spanish translation

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