peduncle

peduncle
a) The axis of an inflorescence; the stalk supporting an inflorescence.

On fertilization, the archegonia form obyriform calyptrae that are distinctly narrowed at base to form a stalk or peduncle; this does not occur in other Hepaticae.

b) A short stalk at the base of a leaf or reproductive structure.
See Also: pedicel

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  • Peduncle — Pe*dun cle, n. [Formed fr. (assumed) L. pedunculus, dim. of pes, pedis, a foot: cf. F. p[ e]doncule.] 1. (Bot.) The stem or stalk that supports the flower or fruit of a plant, or a cluster of flowers or fruits. [1913 Webster] Note: The ultimate… …   The Collaborative International Dictionary of English

  • peduncle — 1753, from Mod.L. pedunculus “footstalk,” dim. of pes (gen. pedis) “foot” (see FOOT (Cf. foot)) …   Etymology dictionary

  • peduncle — [pē duŋ′kəl, pē′duŋ΄kəl] n. [ModL pedunculus, dim. of L pes (gen. pedis), FOOT] 1. Anat. a stalklike bundle of nerve fibers connecting various parts of the brain 2. Bot. a) the stalk of a flower cluster or inflorescence b) the stalk of a solitary …   English World dictionary

  • peduncle — A stalk like structure [AHD]. Basal portion of certain appendages; also fleshy part of body in some cirripeds (Lepadomorpha), between capitulum and attachment to substrate with or without armor of chitinous or calcareous beads, scales, or… …   Crustacea glossary

  • Peduncle — The term peduncle has several meanings:*Peduncle (botany), a stalk supporting an inflorescence *Cerebral peduncle, a band of neurons, resembling a stalk, which connect varied parts of the brain ** In insect brains, the peduncle connects the lobes …   Wikipedia

  • peduncle — 1. In neuroanatomy, term loosely applied to a variety of stalklike connecting structures in the brain, composed either exclusively of white matter ( e.g., cerebellar p.) or of white and gray matter ( e.g., cerebral p …   Medical dictionary

  • peduncle — 1) caudal peduncle, pedicel (the wrist like portion of the posterior part of the body between the end of the anal fin and the base of the caudal fin. Its length is measured between the insertion of the anal fin and the caudal flexure (the fold… …   Dictionary of ichthyology

  • peduncle — n. a narrow process or stalklike structure, serving as a support or a connection. For example, the middle cerebellar peduncle connects the pons and cerebellum …   The new mediacal dictionary

  • Peduncle (botany) — In botany, a peduncle is a stalk supporting an inflorescence, or after fecundation a fruit.The peduncle has the structure of a stem. It is usually green, and without leaves. It can however sometimes support small leaves, or be colored. The end of …   Wikipedia

  • peduncle disease — coldwater disease (a bacterial disease of juvenile and yolk sac fry of salmonids caused by Cytophaga psychrophila (or Flexibacter psychrophilus). It occurs at temperatures below 10°C and is an external and systemic disease with lesions on the… …   Dictionary of ichthyology

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