Definition of parastichy in English:

parastichy

Line breaks: par|as¦tichy
Pronunciation: /pəˈrastɪki
 
/

noun (plural parastichies)

Botany
(In phyllotaxis) an oblique row of leaves arranged in a secondary spiral. Contrasted with orthostichy.
More example sentences
  • There was a negative correlation between phyllotaxy and leaf primordium diameter: species with greater numbers of orthostichies or parastichies had smaller leaf primordia.
  • Curved lines show parastichies between stamens and last-formed tepals.
  • Pistillate flowers, sterile male flowers, atypical bisexual flowers and staminate flowers are inserted on the same contact parastichies.

Origin

late 19th century: from para-1 'adjacent' + Greek stikhos 'row, rank'.

Definition of parastichy in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
adjective
turned backwards