Appendix 1—figure 2. Bifurcation diagram in the Snow and Snow model.

We used a sample of the interval $0.04\le {\mathrm{\Gamma }}^{\prime }\le 2.9$ with steps of $0.01$ or less (refinements were performed in areas with higher numbers of branches). For each value of ${\mathrm{\Gamma }}^{\prime }$, we ran simulations of the classical model with (i) spiral initial conditions for divergence angles taking integer values in ${\displaystyle [{20}^{\circ },{180}^{\circ }]}$, and plastochrons taking values in a sample of 128 points between $0.05$ and $8.00$, (ii) whorled initial conditions for the same samples of divergence angles and plastochrons and all jugacies $2\le j\le 7$. For each simulation, we estimated the final divergence angle $\varphi$ and phyllotactic mode, and reported these in the graph above (abscissa: ${\mathrm{\Gamma }}^{\prime }$, ordinate: $\varphi$, color code: mode).

DOI: http://dx.doi.org/10.7554/eLife.14093.018