Natural History Autumn in Gunnersbury Triangle 12 October 2017 Ian Alexander Leaf Spot on Oak. The spread of the fungus is limited by the tree’s defences, resulting in circular patches of damaged tissue. Margaret and Netty trying to get a Garden Spider to sit still for its photograph Garden Spider on leaf Red (and Grey) Fox Southern Hawker dragonfly in Gunnersbury Triangle, 4 October 2017 Tricholoma knight fungi We also saw Fly Agaric, Trooping Funnel, Collared Earthstar, and Deceiver. Armillaria mellea Honey Fungus by rotting Birch logs. The fungus is both parasitic (killing trees) and saprophytic (rotting their wood afterwards).