I have to respectfully disagree I think.
The pattern on that Hyacinth is more like the reference on pg 181 Vol IV of DBG. It is a vertical ribbed pattern with some intersections creating some closed patterns.
These other pieces, yours included, are a random pattern of ridges which appear like a "Brain" surface, or a "Maze".
We also see different levels of definition in the pattern, which may be different houses, or also possibly different ages of the wood molds in their life cycles.