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parastichy

   Also found in: Encyclopedia 0.01 sec.
parastichy [pəˈræstɪkɪ]
n pl -chies
1. (Life Sciences & Allied Applications / Botany) a hypothetical spiral line connecting the bases of a series of leaves on a stem
2. (Life Sciences & Allied Applications / Botany) an arrangement of leaves so connected Compare orthostichy
[from para-1 + Greek stikhia, from stikhos row, rank]
parastichous  adj


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The phyllotaxis can be seen as 1+2 or 2+3; consequently, when the buds are an even number of nodes apart they occur in the same "2" parastichy in the phyllotaxis.
 
 
 
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