Hart’s Tongue Fern with hoarfrost.

Monochrome Monday could have been a Throwback Thursday as it’s a shot from way back in my archives. Taken in Cheshire, England in the early 1980s when I used to keep a camera loaded with black and white film in my bag.

The upper leaf of this Hart’s Tongue Fern is lying upside down. It’s showing the sori that produce the spores used for reproduction.

It’s known as Hart’s Tongue Fern because the shape of the leaves resembles the tongue of a Hart, a male Red Deer.