Summary:
Helicogloea lagerheimii produces a thin, waxy, colorless to slate gray coating on sodden dead hardwood, identified by microscopic characters. Features include 1) waxy to gelatinous coating on hardwood, colorless to gray with the surface smooth to tuberculate or corrugated, 2) ovate-elliptic spores, 3) probasidia that are lateral, saccate, and oblong-ovoid to elongate, sometimes with 1-3 constrictions, 4) epibasidia arising from near the basal end of hypobasidium, narrow, then abruptly enlarged, the thickened distal part becoming 3-septate, each of the four cells so formed producing a short lateral branch bearing a sterigma and spore.

Microscopic:
SPORES 10-15 x 5-8 microns, sometimes said to be larger, ovate-elliptic, flattened on one side, colorless, germinating by repetition; PROBASIDIA 15-40 x 5-13 microns, "lateral, saccate, oblong-ovoid to elongate, sometimes with 1-3 constrictions", epibasidia "arising from near basal end of hypobasidium, narrow, then abruptly enlarged, finally 45-105 x 4-9 microns, the thickened distal portion becoming 3-septate, each of the four cells so formed producing a usually short lateral branch bearing a sterigma and basidiospore", (Martin)

Notes:
Helicogloea lagerheimii has been found in BC, OR, MB, ON, AZ, CA, IA, LA, MO, New England, and OH, (Ginns), WA (Klett), and Ecuador, Brazil, Hawaii, and Europe, (Martin).

Synonyms and Alternate Names:
Poria radula Pers.
Saccoblastia sebacea Bourdot & Galzin