Golden Shields! - a photo on Flickriver

Golden Shields!

            The Golden Shield lichen, Xanthoria parietina!

Rather than a single organism, this lichen is a close partnership between a fungus and a green alga. They grow together, so they look like one individual.

This species is yellow because of a pigment called parietin, which protects the lichen from harmful UV light rays.

Specimens growing in the shade can be much less bright - almost green - because the lichen only produces enough parietin to protect itself from too much light entering its inner layers.

Taken in: UK / England / Chelmsford District / East Hanningfield (show map)

Taken on: February 7, 2023

Tags:

Golden Shields

Lichen

RHS Hyde Hall

Rettendon

Essex

February

Winter

2023

Xanthoria parietina

Bark

Tree Trunk

Garden « less

Sets appears in: • Lichens

Groups appears in: • Lichen • Macro Photography more » • Moss and Lichen • British Fungi and Lichens • Countryfile • British Photographers • CANON-NO LIMIT • BBC Springwatch (Official) • Camera Camaraderie • MACRO Hall of Fame • Your best of the best • Macroholics • Magic of Photography • This is Nature • Marvels of Macro « less

Camera: Canon EOS 250D, f/4.0, 1/500 sec, 100mm, ISO 100 (more info) (hide info)

Camera:	Canon EOS 250D
Aperture:	f/4.0
Exposure Time:	0.002 sec (1/500)
Focal Length:	100mm
ISO:	100
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Program AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
Software:	Adobe Photoshop Elements 10.0 Windows
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