Endogone pisiformis Link ex Fr.
no common name
Endogonaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Endogonaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Species Information
Summary:
Features include 1) a small spherical to elongate or lobed orange-yellow fruitbody with a basal indentation or cavity, 2) a thin white peridium that is transparent when wet, 3) growth underground or above ground in soil or humus, on coniferous wood, on old polypores, or on sphagnum moss, usually at high elevation, and 4) microscopic characters including very large spores (zygospores) distributed randomly within the spore mass. The description is derived from Gerdemann(1) except where noted. In the Pacific Northwest it is the most frequently collected Endogone species.
Interior:
orange-yellow (Berch)
Microscopic:
zygospores 27-75(83) x 27-65(75) microns, round, elliptic or oboval, walls colorless to pale yellow, "up to 10 microns thick, composed of an outer wall up to 3 microns and a thicker, inner wall up to 8 microns", "spore contents of deep-yellow oil globules that often fade to light yellow"; gametangia "parallel, equal or subequal in size, thin-walled and ephemeral, observed only on immature spores, uniting at or near their tips, the zygospores budding mostly from the point of union but occasionally forming above one gametangium"; gleba "containing coarse, vesicular, thin-walled hyphae" up to 15 microns wide, "often becoming crushed between the crowded zygospores"; peridium composed of hyphae 1-8 microns wide, loosely interwoven, thick-walled, (Gerdemann), spores contain yellow lipid globules that impart a granular appearance, spores not have a hyphal envelope; gametangia typically not ephemeral; gleba contains branching structural hyphae that are wide (up to 20 microns) and thick-walled (4 microns) in addition to the sporogenous hyphae; the peridium is "15-40 microns thick and composed of loosely interwoven or distinctly clustered hyphae that terminate in whiplike extensions that may project from the surface of the sporocarp", these whip-like extension arise from the structural hyphae in the gleba, (Berch)
Notes:
Collections were examined from BC, WA, OR, AK, CA, (Gerdemann). Distribution also includes in Canada MB, NB, NS, ON, and PQ, (Dalpe). It was also examined from CT, MD, ME, MI, NH, NY, TN, WV, (Thaxter in Berch), and NC (Grand & Randall in Berch). It has been found in the United Kingdom (Hawker(1)).
Habitat and Range
Habitat
underground or above ground, in soil or humus, on coniferous litter, wood or bark of fallen trees, old fruitbodies of polypores, or on sphagnum, "in mountains up to timberline and occasionally at low elevations", fruiting after heavy rains in late summer or fall through winter, "and in spring and early summer, when it is often found under the edges of melting snowbanks"; apparently a saprophyte or mycoparasite, (Gerdemann)
Status Information
Synonyms
Synonyms and Alternate Names:
Athelia galzinii (Bourdot) Donk
Corticium galzinii Bourdot