Cyathea

(Not to be confused with Cyathium or Cyathus.) Cyathea is a genus of tree ferns, the type genus of the fern order Cyatheales. The genus name Cyathea is derived from the Greek kyatheion, meaning "little cup", and refers to the cup-shaped sori on the underside of the fronds.

Cyathea

(Not to be confused with Cyathium or Cyathus.) Cyathea is a genus of tree ferns, the type genus of the fern order Cyatheales. The genus name Cyathea is derived from the Greek kyatheion, meaning "little cup", and refers to the cup-shaped sori on the underside of the fronds.