Rhizina undulata

Rhizina undulata
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Pezizomycetes
Order:	Pezizales
Family:	Rhizinaceae
Genus:	Rhizina
Species:	R. undulata
Binomial name
	Rhizina undulata; Fr. (1815)
Synonyms
	Helvella inflata Schaeff. (1774); Rhizina laevigata Fr. (1815); Rhizina praetexta Ehrenb. (1818); Rhizina laevigata var. praetexta (Ehrenb.) Pers. (1822); Rhizina inflata (Schaeff.) Quél. (1886); Rhizina inflata var. rhizophora Massee;

Rhizina undulata, commonly known as the doughnut fungus or the pine firefungus, is a species of fungus in the family Rhizinaceae. The fruit bodies of the fungus are dark purple brown with a bright yellow margin, crust-like and attached to the growing surface by numerous root-like yellow rhizoids. R. undulata has a cosmopolitan distribution, and commonly occurs on clearings or burned areas throughout central and northern Europe, North America, northern Asia, and southern Africa. It is parasitic on conifer seedlings, and has caused considerable damage to tree plantations worldwide.

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