Sanchezia sp._albino morph2.jpg DNA alignment_Acanthaceae trnG-trnR copy.jpg Ruellia norvegigratiosa_leaf cystoliths.jpg Ruellia humboldtiana_fruit.jpg Eranthemum nervosum.jpg Ruellia blechum.jpg Ruellia biolleyi.jpg

Acanth Fact of the Day

A major clade within Acanthaceae is the cystolith clade. Cystoliths are anatomical structures found in leaves and are thought to be composed of calcium carbonate or calcium oxalate. Their function is unknown.
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