Parastichy, in phyllotaxy, is the (invisible) spiral line of the pattern of the areoles on some plants, such as cactuses and pinecones. These spirals involve the insertion of a single primordium. They have been described as an effect of the human eye and the way it connects `nearest points` on certain spiral patterns. ...
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http://en.wikipedia.org/wiki/Parastichy
• (n.) A secondary spiral in phyllotaxy, as one of the evident spirals in a pine cone.
Found on
http://thinkexist.com/dictionary/meaning/parastichy/
Pa·ras'ti·chy noun [ Prefix
para- + Greek ... a row.]
(Botany) A secondary spiral in phyllotaxy, as one of the evident spirals in a pine cone.
Found on
http://www.encyclo.co.uk/webster/P/21
No exact match found.
