1. genus of puffballs having outer casings whose upper parts break at maturity into angular pieces to expose the spores; [syn: Calvatia, genus Calvatia]
WordNet (r) 3.0 (2006):
genus Calvatia
n 1: genus of puffballs having outer casings whose upper parts
break at maturity into angular pieces to expose the spores
[syn: Calvatia, genus Calvatia]