Leucoglossum
Leucoglossum is a genus of fungi in the earth tongue family Geoglossaceae. The genus was formally circumscribed by Japanese mycologist Sanshi Imai in 1942. "Leucoglossum" contains two species: the type, "L. durandii", and "L. leucosporum", which was added to the genus in 2014. Both species resemble those found in "Trichoglossum", but can be distinguished from that genus by having hyaline (translucent) ascospores that turn brownish only when mature. "L. durandii" is found in China, while "L. leucosporum" occurs in Europe. Molecular studies indicate that "Leucoglossum" is a monophyletic group more closely related to "Geoglossum" than "Trichoglossum".