Ruellia laslobasensis.jpg Ruellia california_pollination.jpg Ruellia geminiflora_color polymorphism.jpg Lonchophylla robusta_nectivorous bat.jpg Strobilanthes atropurpureus2.jpg Anoura caudata_nectar bat with pollen on head.jpg Ruellia petiolaris_photo by V. Steinman.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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