State Tree of Michigan?

[Dolcy]

The needles of this tree typically appear blue, they may sometimes be bluish-green or even silver. They normally come in clusters of five to seven strands and are grouped on either side of a long, woody stem. Most needles range between 5 and 7 inches in length. All needles in a group may be the same length, or each one may be a different length than the others.

[Charli]

The soft, living tissue of corals is called the polyp. A limey substance is secreted by the polyp, hardening into corallite -- a skeletal base which supports the polyp and keeps it from being buried alive by bottom debris. Petoskey stones found in Michigan consist of massive corallas of varying sizes. The limey skeletons were replaced by calcite or silica in a cell-by-cell process called petrifaction.