Q:Cyathea sect. Sphaeropteris - Sphaeropteris is a section in the monotypic subgenus Sphaeropteris. The name was originally applied to a genus of tree ferns which is now considered to be synonymous with Cyathea. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Plant