Summary:
Features include 1) resupinate growth on wood, 2) a mould-like, fuligineous fruitbody that is smooth or more rarely granulose or colliculose, the sterile margin darker and fibrillose, and the subiculum darker than the spore-bearing area and fibrous, 3) spores that are round to nearly round, aculeate, and brown, 4) basidia often with transverse septa, the sterigmata often with septa, 5) subhymenial hyphae that are pale brown, wall thickening apparent or thin-walled, with clamp connections, scattered crystalline material adhering to hyphae becoming green in KOH, 6) subicular hyphae that are brown to dark golden brown, wall thickening apparent or thick-walled, with frequent clamp connections, rarely with encrusting material. The online Species Fungorum, accessed August 27, 2020, gives this taxon as a synonym of Tomentella lapida (Pers.) Stalpers [as ''lapidum''], Stud. Mycol. 24: 65 (1984).

Microscopic:
SPORES 7-8.5(9) microns in diameter, round to nearly round, aculeate, tan to medium brown or dull golden brown; BASIDIA 35-50 x 8-10 microns, 4-spored, clavate, with clamp connection at base, often with transverse septa, sterigmata up to 6 microns long and often with septa; SUBHYMENIAL HYPHAE 4-6 microns wide, pale brown, "wall thickening apparent or thin-walled", with clamp connections, scattered crystalline material adhering to hyphae becoming green in KOH; SUBICULAR HYPHAE (3.5)4-7(10) microns wide, "brown to dark golden brown", "wall thickening apparent or thick-walled", septate, with frequent clamp connections, rarely with encrusting material, (Larsen)

Notes:
T. ramosissima found in BC, WA, ID, AB, NF, ON, PQ, AZ, CO, MN, MI, MS, MT, NC, NH, NM, NY, and SC, (Ginns). Distribution also includes Czechoslovakia, France, Germany, Portugal, Sweden, and Turkey, (Larsen).

Synonyms and Alternate Names:
Aleurodiscus subcruentatus (Berk. & M.A. Curtis) Burt
Stereum subcruentatum Berk. & M.A. Curtis