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columella -- A small column of tissue which runs up through the center of a spore capsule. It is present in hornworts, mosses, and some rhyniophytes. compound leaves -- n. Leaves with two or more leaflets attached to a single leaf stem.
In this garden the Bribie Island pine Callitris columellaris has a bracket fungus, ganoderma, at the base. That's a sign of long term decay and it could affect the structure of the tree. Not an immediate problem, but worth checking in future.
See also: Plant, Wood, Light, Grow, Growing
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