Graphis lichen with orange alga Trentepohlia(?) on an oak in Lick Creek ParkLick Creek: Background Notes. College Station, Texas

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College Station, Texas, January 18 - 22, 2019

Album 2432: College Station, Texas, January 18 - 22, 2019

The image shows a close-up of tree bark covered in various types of lichens and algae. The tree is likely an oak tree based on its texture and appearance.

In the center of the image, there is an orange alga with long tendrils that are growing out from it. It appears to be some type of Trentepohlia alga, which can be found in the southeastern United States.

The lichen visible in this image is Graphis. This is a genus of crustose lichens belonging to the family Graphidaceae and order Ostropales. They are typically small to medium-sized, with rounded or oval shapes that vary in color from light green to brownish-yellow. The thallus (non-photosynthetic part) of Graphis lichen is usually flat or slightly convex, sometimes divided into lobes or ridges.

The image also shows the bark's texture and pattern, which appears to be rough and irregular. The bark has a number of small cracks and crevices that provide habitat for various organisms such as fungi, mosses, and other microorganisms.

Overall, the image provides a detailed view of the complex ecosystem present on tree bark, highlighting the diversity of life forms that can thrive in these environments. – AI vision

🇪🇸 Descripción en español / Spanish Description

El liquen gráfico con algas naranjas Trentepohlia(?) en un roble en Lick Creek Park. College Station, Texas, 18 de enero de 2019. La imagen muestra un primer plano de la corteza del árbol cubierta por varios tipos de líquenes y algas. El árbol es probablemente un roble, basándose en su textura y apariencia. En el centro de la imagen se puede ver una alga naranja con largos tentáculos que crecen desde ella. Parece ser un tipo de alga Trentepohlia, que se encuentra en el sureste de los Estados Unidos. El líquen visible en esta imagen es Graphis. Este es un género de líquenes custrósos pertenecientes a la familia Graphidaceae y orden Ostropales. Por lo general, son de tamaño pequeño a mediano, con formas redondeadas u ovaladas que varían en color desde el verde claro al amarillo parduzco. El tallo (parte no fotosintética) del líquen Graphis es normalmente plano o ligeramente convexo, a veces dividido en lóbulos o crestas. La imagen también muestra la textura y el patrón de la corteza, que parece ser áspera e irregular. La corteza tiene varias pequeñas grietas y hendiduras que proporcionan hábitat para varios organismos como hongos, musgos y otros microorganismos. En general, la imagen proporciona una vista detallada del ecosistema complejo presente en la corteza de los árboles, destacando la diversidad de formas de vida que pueden prosperar en estos entornos. – Spanish translation

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