Establishing shot of top of lichen-covered fiberglass box. Next nine photos are close-ups of lichens from within this field.
Same field as previous shot, but different lighting.
Xanthoria sp. in center. See next photo for fluorescence.
Xanthoria fluorescence. Illumination: a 375 nm LED flashlight with a Schott UG1 filter in front of it to reduce the background from the spillover of the LED into the visible (violet). The filter passes UV but cuts off pretty abruptly at 400 nm.