"c, flower of Cerastium longipedunculatum, seen from below: s, a sepal." -Whitney, 1911
"d, calyx, showing the five free sepals" of the Nodding Chickweed (Cerastium nutans) -Whitney, 1911
"a, flower of Caltha palustris, showing the petaloid sepals s." -Whitney, 1911
"b, one of the sepals" of the flower of Caltha palustris, or Kingcup. -Whitney, 1911