Anatomico-physiological Relations in the Spermophyte Shoot . 141 
Figs. 11-14. Diagrammatic schemes to represent phyllotaxis ; the axis viewed as if split 
longitudinally and spread out flat. 11, Veronica hederaefolia , leaf-divergence f, leaf-insertion 
approximately!-. 12 , Lopezia coronata, leaf-divergence f, leaf-insertion approximately the 
pattern shows a lateral skew. 13, Reseda odorata, flowering axis ; bract-divergence f , bract-insertion 
approximately §. 14 , Viola tricolor , leaf-divergence f, leaf-insertion approximately f. 
