Prepared Slide: Angiosperm pollen of Alder
Domain: Eukaryota / Kingdom: Plantae / Subkingdom: Viridiplantae / Infrakingdom: Streptophyta / Phylum: Tracheophyta / Subdivision: Spermatophytina / Infradivision: Angiospermae / Class: Magnoliopsida / Superorder: Rosanae / Order: Fagales / Family: Betulaceae / Genus: Alnus Mill. / Species: Alnus glutinosa (L.) Gaertn.
Synonyms: black alder, European alder, European black alder
The image of Pollen of Alder w. m. is at 400x. The images were illuminated using the Pedersen Dual Quarter Wave Technique (PDQWT)*.
*The Pedersen Dual Quarter Wave Technique (PDQWT) involves placing over the source of illumination a pair of one quarter wave polarizing surfaces that are rotated, one against the other, to control the amount of back light on a prepared microscope slide.
This slide is of unknown origin. It has been used in an unknown classroom setting. From the quality of the work, and the general appearance, it is estimated to have been prepared prior to 1950.
Forensics Lab Supply Number 3863281.
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This slide is placed here primarily so that everyone with an interest would be able to view it as though viewing through a microscope. You may contact me at staff @ grauhall.com.
Image copyright held by Alan J. Pedersen.
Tags: Prepared microscope slide; Prepared slide; Botany
Not made in China.