Phyllotaxis
the spirals are counted, not admired
Series

Cell laws — the series

One essay so far on this idea, and more questions about it than one essay answers.
  1. Two laws, two tilings, and they disagree about which tiling is tissue. Lewis's law wants disorder: its slope is 0.231 on the random set and 0.009 on the golden head. Aboav's relation wants order: a = 1.18 on the head, 0.59 on the random set.

    Two laws that want opposite tissue

    Lewis's law and Aboav's relation are quoted side by side as properties of cellular tissue. Measured on the same two tilings they point opposite ways — the ordered head satisfies Aboav's with the textbook value of 1.18 and fails Lewis's completely; the random set does exactly the reverse.

    part 4 · tissue

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