. On the relation of phyllotaxis to mechanical laws. Phyllotaxis; Leaves. --V'"' ' i«';'v-v--f- Fig. 37. Curve-system (7 + 8) : anomalous type. mathematically equal in origin—while the expression a successive whorl is a contradiction in terms. From such simple and purely geometrical considerations it thus follows that the so-called 'geneticr-spiral' is a property solely of inter- secting curve-systems which only possess i as a common factor, and is therefore only existent in one case out of three possible mathematical| forms (Figs. 35, 36, 38). While if these four systems were subjected t
. On the relation of phyllotaxis to mechanical laws. Phyllotaxis; Leaves. --V'"' ' i«';'v-v--f- Fig. 37. Curve-system (7 + 8) : anomalous type. mathematically equal in origin—while the expression a successive whorl is a contradiction in terms. From such simple and purely geometrical considerations it thus follows that the so-called 'geneticr-spiral' is a property solely of inter- secting curve-systems which only possess i as a common factor, and is therefore only existent in one case out of three possible mathematical| forms (Figs. 35, 36, 38). While if these four systems were subjected to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Church, A. H. (Arthur Harry), 1865-1937; Church, Arthur Henry, Notes on phyllotaxis. London, Williams & Norgate
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