parastichy
/pəˈrastɪki
/noun (plural parastichies) Botany
(In phyllotaxis) an oblique row of leaves arranged in a secondary spiral. Contrasted with orthostichy.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'.
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