Summary:
Naohidea sebacea is characterized by extremely long, narrow basidia. Features include 1) resupinate growth on pyrenomycetes, 2) small whitish patches starting as soft-gelatinous to mucous fruitbodies that are cushion-shaped, spherical, or oblong, anastomosing to form elongated areas up to 0.9cm long, 3) obovate to oblong spores, 4) 4-cellular basidia, with a very long thin-walled basidial stem cut off from the lower part of the spore-producing part, and 5) hyphae with numerous clamp connections.

Microscopic:
SPORES 8-16 x 5-8 microns, "obovate or oblong, sometimes subfusiform, attenuate at the base and often laterally depressed", germinating by repetition; BASIDIA 120-300 x 4-6 microns, "flexuous, finally almost circinate, 3-septate", "epibasidia thick, becoming filiform", HYPHAE 1-3 microns wide, with numerous clamp connections, (Bandoni(10), adapted from Bourdot & Galzin, 1928), SPORES 9-12.3 x 5.5-8 microns, oboval, often flattened on one side, smooth, colorless, apiculate, germination by repetition or by colorless, nearly round to round conidia, 2.5-6.5 x 2.5-5.5 microns (similar conidia occasionally produced by the basidia); BASIDIA terminal, composed of a long stem cell "and a straight or flexuous, 4-celled metabasidium", overall length from clamp connection at base of stem cell 90-275 microns, 5-7.5 microns wide, sterigmata variable in shape and length, up to 25 microns long, a "distinctive feature of P. sebacea is the presence of a thin-walled basidial stipe which is cut off from the lower portion of the probasidium"; INTERNAL HYPHAE thin-walled, with clamp connections, (McNabb, Latin name italicized), SPORES mostly obovate, apiculate, 9.1-12 x 5.9-8.1 microns (Bresadola 10-13 x 7-9 microns); BASIDIA "borne at the tips of long branched hyphae with clamp connections, composed of a long stalk and a four-celled spore-producing part", measuring in all 97-268 x 5.1-7.2 microns, (Olive), in BC collection, spores were 8-10 x 5-7 microns; basidia were up to 190 microns long and were (3.5)4-4.5 microns long, (Bandoni(9))

Notes:
Naohidea sebacea has been found in BC, CA, and GA, (Ginns), Poland (Bandoni(10)), and France, (McNabb).