For last week’s photography assignment in the Observer New Review we asked you to share your photos on the theme of decay via GuardianWitness. Here’s a selection of our favourites

Veiled Lady Mushroom • Amethyst Deceiver • Funghi Nell'acqua • "Berkshire Blue" Amanita • South American Mushroom • More ...

You have to see these seashells!

A wonderful collection of fungi and mushroom drawings in the Public domain. The free mushroom illustrations are by the naturalist James Sowerby.

Learn about Cordycepin, the unique component in Cordyceps. Discover its benefits and why Cordyceps is a must-try for energy. Check out and read our post!