plants/fruits with HIGH contents of Lignin, Cellulose, Starch, Cutin

Hi everyone,
I am trying to identify plants and mainly leaves that contain more lignin(and other biochemicals) than other leaves, to compare them under high resolution spectrometers.
For instance I know that Tomato skin has a high content of Lignin.
And pine needles have a high content of Lignin too.
Some one has more examples to identify this biochemicals?
I also need plants/leaves/fruits with high content of the following biochemicals:
Cellulose
Starch
Xylan
Cutin
Silica
Ribulose 5-biphosphate
Peroxidase
Glutathione
Ascorbic Acid

Thank you very much for the tips

 

For the starch, it is definitely potato - just put a drop of iodine on the freshly cut tuber to see.