Parastichy, in phyllotaxy, is the spiral pattern of particular plant organs on some plants, such as areoles on cacti stems, florets in sunflower heads and scales in pine cones. These spirals involve the insertion of a single primordium.
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See also
External links
- Smith College, Spiral Lattices & Parastichy
- Interactive Parastichies Explorer
References
Webster's Revised Unabridged Dictionary. C. & G. Merriam Co. 1913. http://www.thefreedictionary.com/Parastichy ↩
Weise, Dmitriy (1998-10-29). "Principle of Minimax and Rise Phyllotaxis". Retrieved 2008-12-14. http://www.mi.sanu.ac.rs/vismath/dima/index.html ↩