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Lab location: Building 8, Room 16

cross-section of the stele of Macfadyena unguis-cati

Macfadyena unguis-cati, the “cat’s claw vine”. The wedges of soft, food-conducting tissue (the yellow phloem cells) are embedded in the harder xylem tissue (with red walls). Such variant growth is common in flexible woody vines. Photo by Frank Ewers.