peduncle vs seta

peduncle

noun
  • A short stalk at the base of a leaf or reproductive structure. 

  • In vertebrates, the base of any relatively massive anatomical member connected to the body by a narrower section. Cf. caudal peduncle of fishes. 

  • A stem attaching a mass of tissue (such as a polyp) to the body. 

  • The axis of an inflorescence; the stalk supporting an inflorescence. 

  • A collection of nerves in the appendage of an animal (such as the tip of a dolphin's tail). 

  • A bundle of neurons connecting different parts of the brain. 

  • In arthropods, the base segments of an antenna or stalk-like structures such as the peduncles of some barnacles 

seta

noun
  • The stalk of a moss sporangium, or occasionally in a liverwort. 

  • A bristle or hair 

How often have the words peduncle and seta occurred in a corpus of books? (source: Google Ngram Viewer )