The Observant Walker
Chocolate brown spores, ring on stem, cap white or brown or grey and scaly
Rust brown spores, web-like fibres from stem to cap edge on very young specimens, woodland.
Note: Many fungi have rust-brown spores, but very, very few are edible while most are poisonous
Walnut brown spores, grey/brown gills with age, cap radially fibrous and splitting, small to medium, woodland
Sienna spores (ok, dull orange). Cap shiny, often with broad grooves at edge, gills dull yellow-brown bruising dark brown, distinctly decurrent.