Nettle Stalk #8
by Marek Mis/science Photo Library
Title
Nettle Stalk #8
Artist
Marek Mis/science Photo Library
Medium
Photograph - Photograph
Description
Polarised light micrograph of a longitudinal section through the stalk of a nettle (Urtica sp.) showing calcium oxalate crystals (druses). Calcium oxalate crystals are common in the stems and leaves of many plants; they have no known metabolic function other than to serve as a means of disposal of excess calcium in the plant. Magnification: x93 when printed at 10 centimetres wide.
Uploaded
May 24th, 2023
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