Cap of a brittlegill (Russula) mushroom both in ...

The image presents a comparative view of the cap of a brittlegill mushroom, showcasing its appearance under natural light and ultraviolet (UV-A) blacklight.

**Natural Light View:**

* The cap is positioned on top with its underside facing upwards.
* It features a pale yellowish-brown coloration with darker brown spots scattered throughout.
* The overall texture appears rough to the touch.

**Ultraviolet (UV-A) Blacklight View:**

* Under UV-A light, the cap exhibits a vibrant turquoise hue.
* Darker brown spots on the surface are accentuated by the illumination, while lighter areas remain relatively unchanged in color.

**Background:**
The background of the image is divided into two sections:

* The top portion features a dark gray tone, providing a subtle contrast to the natural light view of the mushroom cap.
* The bottom section displays a black backdrop, allowing the UV-A illuminated cap to stand out prominently. – AI vision