#calyx  the sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing a developing bud; usually green
  supertype:  #sepal  one of the green parts that form the calyx of a flower
  part:  #sepal
  part of:  #perianth
  subtype:  #hull.calyx  persistent enlarged calyx at base of e.g. a strawberry or raspberry
  subtype:  #pappus  calyx composed of scales or bristles or featherlike hairs in plants of the Compositae such as thistles and dandelions
     subtype:  #thistledown  pappus of a thistle consisting of silky featherlike hairs attached to the seedlike fruit of a thistle

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