Noun genus calvatia has 1 sense
  1. Calvatia, genus Calvatia - genus of puffballs having outer casings whose upper parts break at maturity into angular pieces to expose the spores
    --1 is a kind of fungus genus
    --1 is a member of Lycoperdaceae, family Lycoperdaceae
    --1 has members: giant puffball, Calvatia gigantea
,
TOP