Phyllotaxis
the spirals are counted, not admired
Concept

Counting radius — where it appears

2 essays name this object, across one field. What follows is each of them, and the objects they name alongside it.
-10111.5022.503product of the two counts, log₁₀angles left open, log₁₀ °7 pairs · edges found by bisectionwidth × mn = 221°

What a count is worth

A reported parastichy pair pins the divergence angle to a band 221°/mn wide — so 2 and 3 says almost nothing and 34 and 55 fixes it to a tenth of a degree. Every rung of the ladder is worth a factor of φ², and the counting radius this collection has asked published counts for since its foundation adds ten per cent.

wrong · count value plants show consecutive Fibonacci pairs far more…4and more often even than a coin weighted to a half14a conifer cone's rings are spaced as a cone rather…1multijugate patterns are a real minority rather than…34against 14.7%, if the truth is 90%needs: the pair, at a stated rungagainst 14.7%, if the truth is 50%needs: the pair, at a stated rungagainst φ² = 2.62, if the truth is φ^(2/1.88) = 1.67needs: three ring positions, to ±3%against 2%, if the truth is 15%needs: the pair; the whorl's symmetryspecimens neededexact binomial · α = 0.05 · power 0.91 to 34 specimens

The survey this site cannot do

Four phases of asking for a dataset, and it is still not here. What this phase can do instead is specify it — the fields, the sampling, the sizes, and which of this collection's claims each one would settle. Two of the four fields asked for turn out to be worth less than the asking implied, and one was never asked for at all.

wrong · survey spec

Named alongside it

The objects these essays reach for when they reach for this one.

Divergence angleFibonacciRiseSurveyBranchCensusCylinderFalsifiabilityIdentifiabilityJugacyLadderParastichy pair

All concepts