Due to Corona, I limited my regular outdoor activities to public parks arount our apartment in the 8th district Vienna (1 km diameter). There are several parks and in one of them I found specimens of sweet violet (Viola odorata).

I was specially interested in the root. The root was cut with a Jung HN-40 microtom using disposable blades. Stained with Wacker W3A, mounted with Eukitt.

Technical details:
Olympus BX-60
UAPO 10 oil
17 stacks used for the panorama.