Slender orange-bush (Teloschistes exilis) and other fruticose lichens on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas

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Washington-on-the-Brazos - College Station, Texas, August 29 - 30, 2024

Album 3611: Washington-on-the-Brazos - College Station, Texas, August 29 - 30, 2024

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The image showcases three distinct views of lichens on an elm twig, each illuminated by a different light source: regular daylight and ultraviolet (UV-A) blacklight.

**Upper View**

* The top view presents the lichens under regular daylight.
* The lichens exhibit shades of green and yellow hues, with some displaying small orange dots.

**Lower View**

* In contrast, the lower view reveals the same lichens exposed to a 365 nm UV-A blacklight.
* This exposure causes the lichens to glow in vibrant colors:
   + Some appear red or pink
   + Others emit blue light
   + The orange dots from the previous image have turned bright yellow

**Overall Impression**

The image effectively highlights the unique properties of these lichens, which are capable of absorbing and emitting various wavelengths of light. – AI vision

🇪🇸 Descripción en español / Spanish Description

El flaco arbusto naranja (Teloschistes exilis) y otros líquenes fruticosa en un ramal de olmo cuando se expone a la luz del día regular, así como cuando se ilumina con una lámpara negra ultravioleta (UV-A) de 365 nm desde el Washington-on-the-Brazos State Historic Site. Washington, Texas, 29 de agosto de 2024. La imagen muestra tres vistas distintas de los líquenes en un ramal de olmo, cada uno iluminado por una fuente de luz diferente: luz del día regular y luz negra ultravioleta (UV-A). **Vista superior** * La vista superior presenta los líquenes bajo la luz del día regular. * Los líquenes exhiben tonos verdes y amarillos, con algunos que muestran pequeños puntos naranjas. **Vista inferior** * En contraste, la vista inferior revela los mismos líquenes expuestos a una lámpara negra ultravioleta (UV-A) de 365 nm. * Esta exposición hace que los líquenes brillen en colores vibrantes: + Algunos parecen rojos o rosas + Otros emiten luz azul + Los pequeños puntos naranjas de la imagen anterior se han vuelto amarillo brillante **Impresión general** La imagen destaca efectivamente las propiedades únicas de estos líquenes, que son capaces de absorber y emitir diferentes longitudes de onda de luz. – Spanish translation

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