Trichaptum abietinum (Dicks.) Ryvarden 1972

In Great Britain and/or Ireland:
Fungus / internal feeder
larva of Cis bilamellatus feeds within fruitbody of Trichaptum abietinum

Fungus / feeder
female micropter of Hoplothrips polysticti feeds on live fruitbody of Trichaptum abietinum
Remarks: season: 2-6,8-9

Fungus / feeder
larva of Hoplothrips unicolor feeds on live fruitbody of Trichaptum abietinum
Remarks: season: 2-11
Other: sole host/prey

Fungus / saprobe
fruitbody of Skeletocutis carneogrisea is saprobic on dead fruitbody of Trichaptum abietinum
Other: major host/prey

Foodplant / saprobe
fruitbody of Trichaptum abietinum is saprobic on fallen, dead branch (large) of Pinus sylvestris
Other: major host/prey

Foodplant / saprobe
fruitbody of Trichaptum abietinum is saprobic on dead, felled, stacked trunk of Pinopsida

Foodplant / saprobe
fruitbody of Trichaptum abietinum is saprobic on dead, felled, stacked trunk of Larix
Other: major host/prey

Foodplant / saprobe
fruitbody of Trichaptum abietinum is saprobic on dead, felled, stacked trunk of Picea
Other: major host/prey

Foodplant / saprobe
fruitbody of Trichaptum abietinum is saprobic on Fagus
Other: unusual host/prey

Foodplant / saprobe
fruitbody of Trichaptum abietinum is saprobic on dead, felled, stacked trunk of Pinus
Other: major host/prey

Fungus / internal feeder
Zilora ferruginea feeds within fruitbody of Trichaptum abietinum

Coriolus abietinus (Dicks.) Quel. Ench. Fung. 175. 1886
Boletus abietinus Dicks. PI. Crypt. Brit. 3 : 21. 1793.
Boletus incarnatus Schum. Enum. PI. Saell. 2 : 391. 1803.
Polyporus parvulus Schw. Trans. Am. Phil. Soc. II. 4: 157. 1832. (Type from Pennsylvania.)
? Polyporus pargamenus Fries, Epicr. Myc. 480. 1838. (Type from arctic North America.)
Polysiiciuspusio-SQ.cc. & Cub. in Sacc. Syll. Fung. 6 : 265. 1888.
Pileus effused-reflexed, the reflexed portion thin, tough, flexible to nearly rigid, 0.5-1.5 X 1-3X0.05-0.1 cm. ; surface obsoletely zonate, grayishwhite, villose; margin thin, undulate to lobed, fimbriate with age, incurved on drying : context very thin, white, membranous ; tubes uneven, irregular, soon becoming irpiciform, mouths variable in size, 2-3 toa mm., edges thin, lacerate-dentate, unequal, pallid or violet, fading with age, somewhat flesh-tinted in dried specimens: spores globose, smooth, hyaline, 4.5-5.5 /i; hyphae 7^; cystidia none.
Type locality : England.
Habitat : Decaying coniferous trunks.
Distribution ; Northerij hemisphere.

Trichaptum abietinum is a species of poroid fungus in the order Hymenochaetales. It is saprophytic, growing from dead conifer wood.

The white-gray cap is 1–4 cm wide and usually no more than .5 thick, shelved and fanlike, with brownish and leathery flesh. The spores are white, cylindrical, and smooth.

The species is inedible.

Similar species include Trichaptum biforme, Bjerkandera adusta, and Trametes versicolor.