Synonyms: Fomes punctatus, Fomes pusiolus, Fomes zonalis, Fomitopsis zonalis, Hansenia zonalis, Leptoporus microstomus, Microporus cotyledoneus, Microporus inconspicuus, Microporus lineatus, Microporus plumbeus, Microporus rufopictus, Microporus surinamensis, Physisporinus lineatus, Polyporus cotyledoneus, Polyporus guhae, Polyporus inconspicuus, Polyporus lineatus, Polyporus micromegas, Polyporus microstomus, Polyporus plumbeus, Polyporus punctatus, Polyporus pusiolus, Polyporus subliberatus, Polyporus surinamensis, Polyporus zonalis, Polystictus cotyledoneus, Polystictus inconspicuus, Polystictus lineatus, Polystictus plumbeus, Polystictus rufopictus, Polystictus surinamensis, Polystictus zonalis, Poria subliberata, Rigidoporus micromegas, Rigidoporus surinamensis, Rigidoporus zonalis, Scindalma punctatum, Scindalma pusiolum, Trametes microstomus, Trichaptum zonale.
Extract from Wikipedia article: Rigidoporus lineatus is a plant pathogen infecting plane trees.
Rigidoporus lineatus is a brown rot fungus that causes significant damage to live oak trees. In East and Central Texas, it has been found to infect Quercus fusiformis and Quercus virginiana, among other species. The fungus grows as a crust-like formation on the trunk and roots of infected trees, producing conks that are reddish-brown to dark brown in color. It is often associated with soil moisture and can be found in low-lying areas and near water sources. Infected trees may exhibit symptoms such as decline, cankers, and root rot, leading to significant mortality. The fungus is commonly found in the wild and in urban landscapes throughout East and Central Texas.
Shelf mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a log in the creek on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, October 6, 2018
Bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a log in the creek on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, October 6, 2018
Bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) near the creek at Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, November 2, 2019
Underside of polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) near the creek at Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, November 2, 2019
Bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on completely rotten wood of pine on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 24, 2020
Bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a rotting pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 24, 2020
Underside of bracket polypore mushroom Rigidoporus lineatus (Physisporinus lineatus) on a completely rotten pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 24, 2020
Zoned caps of bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 24, 2020
Shelf polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a log in wet area in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020
Mature polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a log in wet area in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020
Underside of polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a log in wet area in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020
Caps of mature polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) on a log in wet area in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020
Underside of a polypore mushroom Rigidoporus lineatus (Physisporinus lineatus) together with other polypore in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
Polypore mushrooms Rigidoporus lineatus on a rotting oak tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 25, 2021
Caps of polypore mushrooms Rigidoporus lineatus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 25, 2021
Close-up of caps of polypore mushrooms Rigidoporus lineatus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 25, 2021
Bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus)(?) on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 18, 2021
Bracket polypore mushrooms Rigidoporus lineatus on a rotting stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 6, 2022
Underside of bracket polypore mushrooms Rigidoporus lineatus on a rotting stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 6, 2022
Spores of polypore mushrooms Rigidoporus lineatus from old oak stump, collected in Sam Houston National Forest near Montgomery. Texas, June 6, 2022
Bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) found on a wet log on creek bed on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022
Tiny pores of a bracket polypore mushroom Rigidoporus lineatus (Physisporinus lineatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022
Spores of bracket polypore mushrooms Rigidoporus lineatus (Physisporinus lineatus) from a wet log on a creek bed, collected in Sam Houston National Forest near Montgomery. Texas, July 3, 2022Rigidoporus lineatus was observed in East and Central Texas, primarily in the Sam Houston National Forest, on various substrates including logs, stumps, and rotting wood of pine and oak trees. The fungus was found in wet areas, near creeks, and on trails such as Caney Creek Trail and Raccoon Run Trail. Observations were made over several years, from 2018 to 2022, with multiple sightings in different locations, including Huntsville, Montgomery, and College Station. The mushrooms were described as shelf or bracket polypores, with zoned caps and tiny pores on the underside. Spores were collected and observed from old oak stumps and wet logs. The fungus appeared to thrive in moist environments, with repeated sightings in areas with access to water.
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