Perenniporia fraxinea (Bull.) Ryvarden 1978

Foodplant / parasite
fruitbody of Perenniporia fraxinea parasitises live trunk (base) of Broadleaved trees
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Fraxinus
Other: major host/prey
minor host/prey

Foodplant / parasite
fruitbody of Perenniporia fraxinea parasitises live trunk (base) of Fagus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Juglans regia
Other: minor host/prey

Foodplant / parasite
fruitbody of Perenniporia fraxinea parasitises live trunk (base) of Platanus
Other: minor host/prey

Foodplant / parasite
fruitbody of Perenniporia fraxinea parasitises live trunk (base) of Quercus
Other: minor host/prey

Foodplant / parasite
fruitbody of Perenniporia fraxinea parasitises live trunk (base) of Robinia pseudoacacia
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Salix
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Sophora japonica
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Sorbus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Tilia
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Ulmus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Perenniporia fraxinea is saprobic on live trunk (base) of Populus alba x tremula (P. x canescens)
Other: minor host/prey

Fomes fraxineus (Bull.) Cooke, Grevillea 14: 21. 1885
Boletus fraxineus Bull. Herb. Fr. 10 : pi. 433. f. 2. 1789. Polyporits fraxineus Fries, Syst. Myc, 1 : 374. 1821. Placodes incarius Qu^l. Fnch. Fung. 172. 1886.
Pileus corky to woody, dimidiate, applanate, usually imbricate, often laterally confluent, thinner in American forms, 4-10X6-15X1-6 cm.; surface velvety to glabrous, zonate at times, concentrically sulcate with age, at first white owing to a covering of fine waxy hairs, becoming bay and finally nearly black with age ; margin thin or tumid, sterile, creamcolored, pulverulent with reddish blotches, becoming dark and hygrophanous when bruised : context punky, becoming corky, isabelline, tinged with carneous when fresh, 0.5-5 cm. thick ; tubes indistinctly stratified, 0.5-1 cm. long each season, isabelline when old, reddish flesh-colored in the younger layers, mouths subcircular, 4 to a mm., edges obtuse, entire, light flesh-colored, covered at first with a white waxy coat, quickly changing to <x darker color when bruised : spores subglobose, smooth, subhyaline, 5-6 Y^S-l /J-.
Type locality : France.
Habitat : Trunks and stumps of sweet gum, ash, peach, and other deciduous trees.
Distribution : New York, Ohio, Illinois, and Ivouisiana ; also in EJurope.

Perenniporia fraxinea is a species of poroid fungus in the family Polyporaceae. It is a plant pathogen infecting ash trees.