pedicel vs petiole

pedicel

noun
  • The second segment of the antenna of an insect, between the scape and the flagellum. 

  • The connection between the cephalothorax and abdomen of a spider. 

  • The segment of an antler that attaches to the head of a cervid. 

  • A stalk of a fungus fruiting body. 

  • A stalk-shaped body part; an anatomical part that resembles a stem or stalk. 

  • A stalk of an individual flower (or fruit, e.g., once fertilised); a stalk bearing a single flower or spore-producing body within a cluster. 

  • A petiole; the connection between the thorax and abdomen of an insect of suborder Apocrita. 

petiole

noun
  • The stalk at the base of the nest of the paper wasp. 

  • A narrow or constricted segment of the body of an insect; especially, the metasomal segment of certain Hymenoptera, such as wasps. 

  • The stalk of a leaf, attaching the blade to the stem. 

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