Echinodontium ryvardenii

Echinodontium ryvardenii is a rare species of fungus in the family Echinodontiaceae, described in 1998 and named in honour of the mycologist Leif Ryvarden. The fungus produces woody, perennial fruit bodies with distinctive ashen-grey, teeth-like structures on its spore-bearing surface, and grows parasitically on ancient Juniperus phoenicea trees in Sardinia, Italy. As the first European representative of a genus previously known only from North America and Asia, E. ryvardenii is considered an evolutionary relict with fewer than 600 mature individuals remaining, earning it an endangered status on the IUCN Red List....read more on Wikipedia.