As the roots anchor the tree and are responsible for its stability, their structure becomes more and more similar to the one of the stem.
Such as an inner cylinder of xylem (wood) that is enclosed by phloem (bark) with its disrupting outer layer of cork. Medullary rays extend from the center radially through the annual rings (concentric circles).
The vascular bundles of dicot plants are arranged in a ring within the ground tissue of the stem. The tissue inside the ring is called pith, the one outside of it is the bark.
Photo: Sony A7II with Minolta 25mm Micro Bellow Lens.
Uranophane is a rare radioactive mineral of uranium, lemon yellow in color and is chemically composed of Calcium, Uranium, Silicon, Hydrogen, and Oxygen. It is relatively soft with a Mohs scale hardness of 2.5. It is also slightly Fluorescent.
Chemical Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
The cells of this parenchyma tissue have very thin walls and a more or less round shape forming empty intercellular spaces which serve for aeration. Starch grains are reserve substances and are found in some of the parenchyma cells.
SONY A7 MARK II With 50mm MD Minolta Lens.
The Sony A7 II is the world’s first full-frame camera with 5-axis image stabilization and provides camera shake compensation for wide-ranging mountable lenses. Compact and refined for intuitive operation, it offers enhanced Fast Hybrid AF that delivers lightning-fast focusing, super-wide coverage, and exceptionally effective tracking of fast-moving subjects. (Courtesy Sony USA).
Link to Sony A7ii Web Page