Phyllotaxis
the spirals are counted, not admired
Series

Stem count — the series

One essay so far on this idea, and more questions about it than one essay answers.
  1. The same counter, on a stem and on a disc. The stem returns 2 and 3 in all three bands. The disc returns 21/34, 34/55, 55/89 — three answers to one question, which is why a published count needs to say where it was taken.

    Counting up the stem

    The same counting machinery, pointed at a stem instead of a seed head, returns one answer three times where the head returned three answers. That contrast is a measurement rather than a preference, and it is the one the whole cylindrical argument rests on.

    part 2 · cylinder

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