#graphis lucifica

Graphis lucifica

Glowing script

I love when a scientific name and common name are actually informative. G. lucifica, unlike many other cryptic Graphis species, is fairly easy to ID with a simple UV test: it glows a nice bright yellow due to the presence of lichexanthone in the otherwise unassuming, grayish-white thallus. It also produces script-like, black lirellae (linear apothecia) that are flexuous, and can be short or branched. G. lucifica grows on the thin trunks, twigs, and small branches of neotropical hardwood trees.

images: source