Summary:
Features include 1) gelatinous, tuberculate, confluent, whitish to grayish growth on dead coniferous wood and bark, 2) slender, often strongly curved spores, and 3) 2-celled basidia, with the tendency of these to become detached before developing epibasidia (the third feature distinguishing it from others in genus according to Martin, G.W.(1)).

Microscopic:
SPORES (16)20-22 x (4)5-6 microns, cylindric-allantoid, often strongly curved; "in section composed of radiating branched hyphae", some of the branches becoming slender branched paraphyses 2-2.5 microns wide, others swollen at the tips, the swellings either proliferating or developing into cylindrical-clavate probasidia mostly 30-35 x 6-7 microns, "these becoming transversely 1-septate, each cell sending out a cylindrical epibasidium, varying in length but usually rather long and 2-3 microns in diameter except just below the sterigma where it is often somewhat enlarged", (Martin(1)), SPORES (16)20-22(24) x (4)5-6.5 microns, cylindric or allantoid, colorless; BASIDIA 2-cellular, rarely 3-cellular or 4-cellular, 19-40 x 5-8 microns, almost cylindric; HYPHIDIA 2-2.5 microns wide, thin, branched; HYPHAE 1.5-2.5 microns wide, "radiating, branched, with septa", without clamp connections, (Raitviir)

Notes:
It has been found in BC, ON, and PQ, (Ginns).

Synonyms and Alternate Names:
Lentoporia carbonica "(Overh.) Audet, "
Poria carbonica Overh.