Not just Cladonia, took these pictures on the way to the bus stop earlier today and thought that fits too good into this thread to ignore. My uv lamp is this one (365nm): https://a.co/d/5N8w4QZ
[Edit:] should explain, the left picture could be a number of Myriolecis species, but the yellow glow under UV light means it can only be Myriolecis semipallida!