Texture of water fern (Azolla) and duckweed when ...

The image features two photographs of water ferns and duckweed taken under different lighting conditions: daylight and ultraviolet (UV-A) blacklight illumination from a 365 nm source.

Both photos showcase an array of small aquatic plants with distinctive leaf shapes that appear in various shades of green, red, and brown. The top photo was captured during regular daylight hours, while the bottom photo was taken under UV-A lighting conditions.

The use of UV-A light causes the water ferns to fluoresce, as indicated by the vibrant purple hue visible on many of the plants' leaves. This effect is particularly pronounced in the lower image, where the leaf structures are illuminated by the blacklight. In contrast, the top photo shows the plants under natural daylight conditions with reduced fluorescence and a more subdued color palette.

The images provide a comparison between the visual effects of different lighting sources on water ferns and duckweed, highlighting the unique properties of these aquatic plants when exposed to UV-A light. – AI vision