Categories David Horse mushrooms in a front garden Post author By David Post date 9 November 2019 Small clump of horse mushrooms (Agaricus arvensis), which I noticed growing in a front garden. Someone had already uprooted one, so I was able to get a clear picture of the under-side; the gills and the ring on the stem. ← Toes in the water – Canada goose, West Park → Toes (and more) in the water: cygnet, West Park