R157

R157 / 1:1c

Anchored Tree Stem establishes axis of zero or one Grafted Branch

Grafted Branch is a collinear extension of exactly one Anchored Tree Stem]

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The line segment of a Branch can be defined by starting at the Vine end of an Anchored Tree Stem and extending on the same axis toward one or more other attached Tree Stems. If the Branch is defined in this manner it is a Grafted Branch.

By definition, a Grafted Branch extends out from some Anchored Tree Stem.

Most Anchored Tree Stems will not define a Grafted Branch and instead simply hang at a right angle from some Branch which may or may not be a Grafted Branch.