Norway Spruce Needle
by Meckes/ottawa
Title
Norway Spruce Needle
Artist
Meckes/ottawa
Medium
Photograph - Photograph
Description
Cross section of a Norway Spruce (picea abies) needle. This needle is angular in cross section, not flattened as in the related hemlocks and firs. Visible is the cuticula, a strong protective casing formed by the hardening of the underlying epidermis, as well as the endodermis. The cuticula prevents evaporation and injury. SEM 150x.
Uploaded
May 19th, 2021
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