Researchers at the Kunming Institute of Botany, Chinese Academy of Sciences, have formally described Dianjunus rex, a Yunnan fungus with upright fruiting structures up to 50 cm high, as a new genus, species and family (Dianjunaceae) within the order Xylariales. The placement rests on a four-gene phylogeny, genome sequencing of three specimens and molecular dating, which puts the family's origin at about 65 million years ago (interval 50 to 80).