Amphinema byssoides (Pers.: Fr.) J. Erikss.
no common name
Atheliaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Atheliaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Species Information
Summary:
Amphinema byssoides is recognized by 1) the yellow color of the resupinate growth on wood, 2) the characteristic crater-like holes in the surface, and 3) under a hand-lens the numerous projecting cystidia; other features include 4) a finely velvety, cobwebby surface, 5) a marginal zone with rhizomorphs, 6) spores that are elliptic, smooth, inamyloid, with thickened walls, 7) long cylindric cystidia with septa and clamp connections, and 8) a monomitic hyphal system, the hyphae with clamp connections.
Microscopic:
SPORES 4-4.5 x 2-2.5 microns, elliptic, smooth, inamyloid, with thickened walls; BASIDIA 4-spored, 20-25 x 4-5 microns, clavate, rarely somewhat constricted; HYPHAL CYSTIDIA numerous, projecting 50-70 microns, in total 75-125 x 4-6 microns, "with septa and clamps, finely encrusted with thin, flat, projecting crystals, and small angular grains"; HYPHAE monomitic with hyphae 3-4 microns wide, intertangled, pale yellowish, with thin or somewhat thickened walls and clamp connections, (Eriksson), SPORES 4-5 x 2.5-3 microns, oval, smooth, inamyloid, colorless, with one droplet; BASIDIA 4-spored, (according to literature also with 2), up to 18-23 x 5-6 microns, clavate; CYSTIDIA up to 130 x 6 microns, "cylindric, blunt, thin- to thick-walled, with 1 to 4 septa, with clamps, lightly incrusted toward the tips"; HYPHAE monomitic with hyphae 2-3.5 microns wide, thin-walled to thick-walled, with clamp connections, (Breitenbach)
Notes:
Amphinema byssoides is found in BC, WA, OR, AB, MB, NS, NT, ON, PQ, YT, AK, AZ, CA, CO, IA, IL, LA, MA, MN, NM, NY, OH, TX, UT, and VT, (Ginns), and Europe and Asia, (Breitenbach).
Habitat and Range
Habitat
on dead coniferous wood and debris, (Eriksson), on rotting wood, litter and soil, damp soil and roots, associated with a variety of conifers, also with Acer (maple), Betula (birch), Populus (aspen and cottonwood), Quercus (oak), Selaginella apoda (creeping spikemoss), mycorrhizal at least with Picea glauca (white spruce), reported to be associated with a white rot, (Ginns), on the underside of dead wood, commonly in burned places, according to literature also on remains of other plants such as ferns and mosses, (Breitenbach), also on cones, leaf litter, and old polypore fruitbodies; all year, (Buczacki)
Status Information
Synonyms
Synonyms and Alternate Names:
Corticium polygonium Pers.
Cryptochaete polygonia (Pers.) P. Karst.