Summary: The pores have a distinctive net-like or reticulate appearance. Other features include flat growth on wood with the pore surface exposed (grayish to white or grading from cream to pinkish to pale orange), growth on aspen, and relatively large allantoid spores. It is common throughout the range of aspen in North America, (Gilbertson).
Microscopic: spores 7-9.5 x 2-3.5 microns, allantoid [curved sausage-shaped], smooth, inamyloid, colorless; basidia 4-spored, 15-20 x 5-8 microns, clavate, simple-septate at base; cystidia absent; hyphal system monomitic: subicular hyphae 3-7 microns wide, "thin-walled, often branched at right angles, simple-septate, loosely interwoven", (Gilbertson), spores 7-8.5 x 2.5-3 microns, cylindric-allantoid, smooth, inamyloid, colorless, some with 2 droplets, (Breitenbach)
Notes: Ceriporia reticulata has been found in BC, WA, OR, ID, AB, AZ, CA, CO, MA, MI, MN, MT, NM, NV, NY, UT, WI, and WY, (Gilbertson). It also occurs in Europe and Asia, (Breitenbach).
Habitat and Range
SIMILAR SPECIES
Ceriporia excelsa may have similar pore structure to young specimens of C. reticulata, but has larger pores and smaller spores, (Breitenbach).
Habitat
annual, common on dead aspen but also occurring on other hardwoods, rarely on conifers, causing white rot of dead hardwoods, (Gilbertson), on hardwoods, usually Populus, (Ginns), on the underside of rotten hardwood, more rarely conifer wood, (Breitenbach), probably all year (Buczacki)