Lambinonia, a new genus for Melanconium strigulae, a lichenicolous hyphomycete on foliicolous species of Strigula

The new genus Lambinonia Serus. & Diederich is introduced for the lichenicolous hyphomycete Melanconium strigulae Elenkin & Woron. This species forms dark sporodochia on the surface or at the margin of the thalli, or extruding out of the perithecia and pycnidia of the foliicolous Strigula buxi, S. nenzathora and S. nitidula. It is so far known from the western Caucasus (Georgia and Russia), southern Italy, Tenerife (Canary Islands), St-Lucia (West Indies), and Burundi and Rwanda in Africa. The new combination Lambinonia strigulae (Elenkin & Woron.) Serus. & Diederich is introduced and a neotype collection is designated.