Image of the Day: Botanical Transport

A cross-section of a vascular bundle in the leaf of a dawn redwood (Metasequoia glyptostroboides)

By | November 7, 2014

WIKIMEDIA, ROLF-DIETER MUELLERHat tip: New Scientist

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Avatar of: Auros

Auros

Posts: 5

November 7, 2014

Can I just put in another request for these photos to come with a paragraph explaining a little more about what we're looking at?  This is lovely, but what's interesting about it?  I've read that the dawn redwood is believed to be more "evolutionarily old" -- that it has experienced fewer significant mutations since the Sequoioideae family first emerged.  Do its structures shed light on long-term adaptations of tree vascular systems?  For that matter, what are we really looking at?  What cell/tissue types are in the picture, and how have they been stained different colors?

Avatar of: Mike Bennett

Mike Bennett

Posts: 19

November 7, 2014

Pretty, but what is the identity of the different classes of cell?

I support Auros' request for more information and have made a similar request previously.  If the picture is already published, what is the reference? Sometimes Google helps.

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