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needle of a spruce, cross section overall view, Etzold stain |
Microscopy, Stereomicroscope, Microfoto |
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needle of a spruce, cross section vascular bundle, Etzold stain |
Microscopy, Stereomicroscope, Microfoto |
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needle of a spruce, cross section epidermis with stoma, Etzold stain
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Microscopy, Stereomicroscope, Microfoto |
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needle of a spruce, cross section resin channel, Etzold stain,
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Microscopy, Stereomicroscope, Microfoto |