Morganella subincarnata

Fruitbodies are up to 3.5 cm across, usually wider than tall, and spines grouped to form dark pyramidal warts which disappear in age to leave a pitted or reticulate (network) surface. Widespread but not common, this species occurs on rotten logs in dense clusters.  Also known as Lycoperdon subincarnata.    It differs from L. pyriforme in lacking a sterile base.