Close-up of water fern (Azolla) and duckweed ...

The top portion of the image displays a close-up photograph of water fern (Azolla) and duckweed, captured under natural light conditions. The plants exhibit varying shades of green, with some displaying orange hues, particularly in areas where they appear to be overlapping or densely packed.

In contrast, the lower half of the image showcases the same flora illuminated by 365 nm ultraviolet (UV-A) blacklight. Under this specialized lighting, the water fern and duckweed display striking red fluorescence, accentuating their intricate patterns and textures. The vibrant red hue is particularly pronounced in areas where the plants are densely packed or overlapping.

The image's background is not explicitly defined but appears to be a dark surface, likely a table or other flat area, upon which the plants have been arranged for photography. Overall, this image effectively highlights the unique fluorescent properties of water fern and duckweed when exposed to UV-A radiation, offering a fascinating glimpse into their biological characteristics. – AI vision