There is no fungus. There is a few tiny dirt or fungi removal mark that can be seen by shining a strong light on inner lens. There is slightly thin haze or tiny dirt that can be seen by shining a strong light on inner lens.
Exc+++++ Canon FL 50mm f1.4 MF Standard Prime Lens For FL Mount Japan #0408
[ TOP MINT ] Canon FL 50mm f/1.4 Standard Prime Lens From Japan #3087
Canon FL 50mm f/1.8 MF Standard Lens for F-1 A-1 w/ Caps Near MINT Tested JAPAN
[EXC+] Canon FL 50mm F1.4 Standard Prime Manual Focus Lens From Japan 33874
Canon FL 50mm f/1.4 MF Standard Lens for A-1 AE-1 w/ Hood Caps MINT Tested JAPAN