AI Insight
Scientists have discovered and described Dianjunus rex, a giant fungus species found in Yunnan forests, China, that produces the largest known fruiting bodies within the phylum Ascomycota, reaching up to 50 cm in height and 2.2 kg in weight. The species belongs to a unique fungal lineage that researchers trace back approximately 65 million years. This discovery expands our knowledge of the maximum size potential for ascomycete fungi.
Why it matters
This finding challenges existing assumptions about the size limits of ascomycete fungi and provides insights into fungal evolution and diversity in understudied ecosystems. The ancient lineage of this species may offer valuable information about fungal survival and adaptation over millions of years.
Understand the Science
Deep in the forests of Yunnan, China, scientists have discovered a “fungal giant” that challenges our understanding of how large fungi can become. The newly described species, Dianjunus rex, produces vertical fruiting bodies up to 50 cm (20 inches) high and weighing up to 2.2 kg (4.9 pounds)—the largest known within the phylum Ascomycota.