Having a columella or columellae; possessing a central column-like structure.
From 'columella' + the Latin suffix '-atus' (often rendered '-ate' in English) meaning 'having' or 'characterized by.' Used to classify organisms with columellar features.
The '-ate' suffix literally means 'having this thing,' so columellate fungi are ones with a proper central axis—it's like giving a shape its own ID card in the taxonomy system.
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