Entoloma viridomarginatum grows on soil among grass and moss in Australian native forests and woodland; uncommon. Cap to 25 mm, convex with a small shallow depression, yellow-green to brilliant deep blue-green, scaly. Gills pale green, edged dark green; spore print pink. Stem very dark green, ring absent, with white mycelium at the base. Baldry Crossing, Greensbush, Mornington Peninsula, 2005.