ニューヨーク植物園のインスタグラム(nybg) - 4月6日 00時38分

What you're seeing here are cross sections of a #Lycopodium stem from our Plant Research Lab, photographed in succession from the top down. Leaf traces are added onto the stem as we travel towards the root. #nybgscience #botany

[BIHAKUEN]UVシールド(UVShield)

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