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Animals
Vertibrates
Human Dog Pig Rabbit Fish Frog
NonVertibrates
Bacteria Protists
Blood
Blood
Insects
Butterfly Dragonfly Honeybee Housefly Mosquito
Insect Parts
Eye Mouth Wing
Plants
Pine Fern Ipomoea Lillium Zea
Plant Parts
Leaf Root Stem CS Stem LS
Fungi
Fungi

Set 1, Slide 92, Cross Section, Lightfield
StemCS Linked Set

Stem CS

 

Tilia stem looks darn similar to pine stem in terms of the color and the shape. There are annual rings on the xylem parts. The pith parts seem to have some colored substances. Many pith rays are also found on the sample. The edge of the stem is basically made up cortex and periderm. The outer parts of the sample is green.

Pith

Image Data Description

100x
There are many polygonal cells in the pith. These cells seem to be overlapping since multiple cell walls are visible. Some cells are filled with dark green substance.

400x
This cell contains a spinal object inside it. This spinal object is transparent.

Secondary Xylem

Image Data Description

100x
The shapes and the sizes of the plant cells appear to be various in the xylem. There are multiple of rays visible on the image. 

200x
A distinct color change seems to be a trace of an annual ring. It looks like the cells are getting smaller at the end of a year. However, the cells seem to become big as a new year starts.

Expanded Pith Ray

Image Data Description

200x
The pith ray continues to grow out to the phloem parts. At the phloem part, the ray seems to create an area that is filled with many big cells. This area appears to be lighter than other phloem parts.

400x
Some cells in the area created by the pith ray seem to have weird substances inside them. These substances look rough.

Secondary Phloem

Image Data Description

200x
The cells in the phloem seem to have reddish substances inside.  The nuclei of the cells are barely visible through the reddish substances.

400x
It looks like several layers of the cells are overlapping. Some cells appear to be reddish while other green cells appear beneath the reddish cells.
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