1. An earthball with a peridium that is firm dry and smooth when young but developing cracks when mature; pale orange-yellow when young and reddish brown at maturity
   "The smooth earthball changed colour as it aged in the forest";
   - Scleroderma bovista

Derived forms: smooth earthballs

Type of: earthball, false truffle, hard-skinned puffball, puffball

Part of: genus Scleroderma, Scleroderma