The yellow pencil on the right points to the raised branch bark ridge

Included Bark

The yellow pencil on the right points to the raised branch bark ridge (BBR). This is a good union at this time. The blue pencil on the left points to the spot where the branch bark ridge turns inward and included bark developed.

This is the same sample as above. The blue pencil points to the included bark which is a part of the week union associated with the codominant stem. The yellow pencil points to the good union where there is no included bark.

The dissection to the left are codominant leaders. Notice the included bark down the middle (White arrow).