Synonym: Ganoderma meredithae.
Common name: Pine Varnish Conk.
Extract from Wikipedia article: Ganoderma meredithiae is a species of bracket fungus in the family Ganodermataceae. Described as new to science in 1988 by mycologists James E. Adaskaveg and Robert Lee Gilbertson, it is found in the southeastern United States in the Gulf Coast region from east Texas to Georgia. The fungus causes white rot and butt rot on living pines, including loblolly pine (Pinus taeda) and spruce pine (Pinus glabra). The holotype was collected in 1985 near Pineville, Louisiana. G. meredithiae is named in honor of mycologist Meredith Blackwell.
Ganoderma meredithiae is a species of polypore fungus that grows on trees, particularly oak and elm. In East and Central Texas, it has been found to fruit during the summer and fall months, typically on the trunks of living trees or on stumps. The fungus produces large, perennial brackets with a glossy, reddish-brown to black cap and a white to yellow pore surface. It is considered a parasite that can cause heartwood rot in its host trees. Specimens have been collected in various counties across East and Central Texas, including Brazos, Grimes, and Travis counties.
Polypore mushroom Ganoderma curtisii f. meredithiae (Ganoderma meredithiae) on a side of an old railroad grade(?) in a pine forest on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019
12021 Fm 2025 Rd, Cleveland, TX 77328, USA
Cap of a polypore mushroom Ganoderma curtisii f. meredithiae (Ganoderma meredithiae) found on a side of an old railroad grade(?) in a pine forest on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 201912021 Fm 2025 Rd, Cleveland, TX 77328, USA
Mature polypore mushrooms Ganoderma curtisii f. meredithiae (Ganoderma meredithiae) under pines on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020Lone Star Hiking Trail, Richards, TX 77873, USA
Underside of mature polypore mushrooms Ganoderma curtisii f. meredithiae (Ganoderma meredithiae) under pines on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020Lone Star Hiking Trail, Richards, TX 77873, USA
Pine varnish conk polypore mushroom (Ganoderma meredithiae(?)) collected during mushroom walk on D. L. property. Bleakwood, Newton County, Texas, June 11, 2022Newton County, Texas, United States
Underside of pine varnish conk polypore mushroom (Ganoderma meredithiae(?)) collected during mushroom walk on D. L. property. Bleakwood, Newton County, Texas, June 11, 2022Newton County, Texas, United States
Pore surface of pine varnish conk polypore mushroom (Ganoderma meredithiae(?)) collected during mushroom walk on D. L. property. Bleakwood, Newton County, Texas, June 11, 2022Newton County, Texas, United StatesObservations of Ganoderma meredithiae in East and Central Texas reveal that the fungus grows in pine forests, often found on or near old railroad grades or under pines. In Cleveland, Texas, it was observed on Winters Bayou Trail in Sam Houston National Forest, with caps and mature mushrooms seen in November 2019. Similar observations were made on Richards Loop Trail in April 2020, with mature mushrooms and their underside recorded. Additionally, the fungus was collected during a mushroom walk in Bleakwood, Newton County, Texas, in June 2022, where its pore surface and underside were documented. The sightings suggest that Ganoderma meredithiae thrives in pine-dominated environments in East and Central Texas, with a presence in both Sam Houston National Forest and private properties. The fungus was observed at different stages of maturity and in various forms.
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