Recently described as new to science (Spribille et al. 2014).
Xylographa lagoi is a distinctive species found only on oak wood at a single location in northern Spain. The decrease in available habitat in old forests of the northern Iberian Peninsula means that available substrate for this species is in sharp decline.
On wood of fallen oak branch in open oak forest.
Spribille, T., Resl, P., Ahti, T., Pérez-Ortega, S., Mayrhofer, H., Lumbsch, H.T. (2014): Molecular systematics of the wood-inhabiting, lichen-forming genus Xylographa (Baeomycetales, Ostropomycetidae) with eight new species. Symbolae Botanicae Upsalienses 37:1.