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phyllotaxis

Line breaks: phyl¦lo|taxis
Pronunciation: /ˌfɪlə(ʊ)ˈtaksɪs
 
/
(also phyllotaxy /-ˈtaksi/)

Definition of phyllotaxis in English:

noun

[mass noun] Botany
The arrangement of leaves on an axis or stem.
Example sentences
  • Poaceae species present a conserved distichous phyllotaxy (leaf position along the stem) and share common properties with respect to leaf initiation.
  • The courses of these bundles were presented both in transverse sections chosen at characteristic points (where changes in phyllotaxy and bifurcation of leaf trace bundles occurred) and in longitudinal diagrams.
  • There was a negative correlation between phyllotaxy and leaf primordium diameter: species with greater numbers of orthostichies or parastichies had smaller leaf primordia.

Derivatives

phyllotactic

1
adjective
Example sentences
  • For example, in the case of sho mutants, the predominance of a distichous phyllotactic pattern is not recognizable by visual observation of the schematic alignment of primordia.
  • The sympodia are arranged more or less parallel to the stem axis and follow the phyllotactic spirals of the leaves.
  • It is interesting to note that there is no discontinuity in the phyllotactic pattern of the flowers between the different zones of the inflorescence.

Definition of phyllotaxis in:

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