Synonyms: Agaricus hobsonii, Clitopilus pleurotelloides, Dendrosarcus hobsonii, Hohenbuehelia hobsonii, Octojuga fayodii, Octojuga hobsonii, Octojuga pleurotelloides, Octojuga pseudopinsita, Pleurotus hobsonii, Pleurotus pleurotelloides.
Common name: miller's oysterling.
Clitopilus hobsonii is a species of fungus that belongs to the family Entolomataceae. It is a small to medium-sized mushroom with a pinkish-gray cap and white gills. In East and Central Texas, Clitopilus hobsonii typically fruits in the spring and fall, often growing in clusters on rich soil, decaying wood, or leaf litter in wooded areas, particularly under oak, beech, and pine trees. The fungus is widely distributed across the region, with sightings reported in various counties, including Brazos, Grimes, Houston, and Trinity.
Small white oyster mushrooms Clitopilus hobsonii(?) on a log in Lick Creek Park. College Station, Texas, May 28, 2018
Iron Bridge Trail, College Station, TX 77845, USA
Small white oyster mushrooms Clitopilus hobsonii(?) on a rotting log in Lick Creek Park. College Station, Texas, May 28, 2018Iron Bridge Trail, College Station, TX 77845, USA
Close up of small white oyster mushrooms Clitopilus hobsonii(?) on a log in Lick Creek Park. College Station, Texas, May 28, 2018Iron Bridge Trail, College Station, TX 77845, USA
Small white oysterling mushrooms Clitopilus hobsonii under a wet log in a dry oxbow on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, February 22, 2020Lone Star Hiking Trail, Huntsville, TX 77340, USA
Small white oysterling mushrooms Clitopilus hobsonii and tiny Ascomycetes under a wet log in a dry oxbow on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, February 22, 2020Lone Star Hiking Trail, Huntsville, TX 77340, USA
Small white oysterling mushrooms Clitopilus hobsonii together with tiny cup fungi under a blackened log in a dry oxbow on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, February 22, 2020Lone Star Hiking Trail, Huntsville, TX 77340, USA
Oysterling mushrooms Clitopilus hobsonii on a wet log in a dry oxbow near Boswell Creek on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, February 22, 2020Lone Star Hiking Trail, Huntsville, TX 77340, USA
Oysterling mushrooms Clitopilus hobsonii on an oak log in Lick Creek Park. College Station, Texas, June 4, 2021Yaupon Loop, College Station, TX 77845, USA
Tiny white pleurotoid mushrooms Clitopilus hobsonii(?) on a log on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021Lone Star Hiking Trail, Cleveland, TX 77328, USA
Side view of tiny white pleurotoid mushrooms Clitopilus hobsonii(?) on a log on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021Lone Star Hiking Trail, Cleveland, TX 77328, USA
Underside of tiny white pleurotoid mushrooms Clitopilus hobsonii(?) on a log on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021Lone Star Hiking Trail, Cleveland, TX 77328, USA
Small oysterling mushrooms Clitopilus hobsonii(?) on a fallen magnolia twig on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021Lone Star Hiking Trail, Cleveland, TX 77328, USA
Underside of oysterling mushrooms Clitopilus hobsonii(?) on a piece of magnolia wood on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021Lone Star Hiking Trail, Cleveland, TX 77328, USA
Tiny oysterling mushrooms Clitopilus hobsonii(?) on a piece of wood on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021Lone Star Hiking Trail, Cleveland, TX 77328, USA
Miller's oysterling mushrooms (Clitopilus hobsonii) on old dark polypore mushroom on pecan of hickory bark on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, September 3, 2022Forest Service Rd 231, Montgomery County, Texas, United States
close-up of Miller's oysterling mushrooms (Clitopilus hobsonii) on old dark polypore mushroom on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, September 3, 2022Forest Service Rd 231, Montgomery County, Texas, United States
Miller's oysterling mushrooms (Clitopilus hobsonii) on old dark resupinate polypore mushroom on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, September 3, 2022Forest Service Rd 231, Montgomery County, Texas, United States
Underside of Miller's oysterling mushrooms (Clitopilus hobsonii) on pecan of hickory bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Side view of Miller's oysterling mushrooms (Clitopilus hobsonii) on pecan of hickory bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Miller's oysterling mushrooms (Clitopilus hobsonii) on pecan of hickory bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Small white oysterling mushrooms Clitopilus hobsonii on pecan of hickory bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Gills of Miller's oysterling mushrooms (Clitopilus hobsonii) on pecan of hickory bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Underside of Miller's oysterling mushrooms (Clitopilus hobsonii) with some mold on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of oysterling mushrooms Clitopilus hobsonii from pecan of hickory bark, collected in Sam Houston National Forest near Montgomery. Texas, September 4, 2022
Whitish spore print of Miller's oysterling mushrooms (Clitopilus hobsonii) from bark of a pecan collected in Sam Houston National Forest near Montgomery. Texas, September 4, 2022
Ridged spores of Miller's oysterling mushrooms (Clitopilus hobsonii) from on old dark resupinate polypore mushroom collected in Sam Houston National Forest near Richards a day before. Texas, September 4, 2022
Spores of Miller's oysterling mushrooms (Clitopilus hobsonii) from on old dark resupinate polypore, collected in Sam Houston National Forest near Richards a day before. Texas, September 4, 2022
Spores (at very low magnification, x10 objective, spore print thin, slightly brown) of oysterling mushrooms Clitopilus hobsonii(?) collected 2 days before near Caney Creek in Sam Houston National Forest. Texas, January 2, 2023
Spores (in lugol, at low magnification, x40 objective) of oysterling mushrooms Clitopilus hobsonii(?) collected 2 days before near Caney Creek in Sam Houston National Forest. Texas, January 2, 2023
Spores (x100 objective) of oysterling mushrooms Clitopilus hobsonii(?) collected 2 days before near Caney Creek in Sam Houston National Forest. Texas, January 2, 2023
Tiny white Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) on a hardwood log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Young Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) on a hardwood log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Close-up of young Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) on a hardwood log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Gills of Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) on a hardwood log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Mature Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) under a fallen tree branch on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Tissues at low magnification of Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023
Tissues of Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023
Spores of mature Miller's oysterling mushrooms (Clitopilus hobsonii) or may be crepidotus(?) from a fallen tree branch, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 7, 2023
Spore size 5.6 - 6.7 × 2.5 - 2.7 µm, length to width ratio Q = 2.21 - 2.5.
Oysterling mushrooms Clitopilus hobsonii on rotting wood on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, February 19, 2023Lone Star Hiking Trail, Montgomery County, Texas, United States
Oysterling mushrooms Clitopilus hobsonii on a log without bark on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, February 19, 2023Lone Star Hiking Trail, Montgomery County, Texas, United States
Close-up of oysterling mushrooms Clitopilus hobsonii on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, February 19, 2023Lone Star Hiking Trail, Montgomery County, Texas, United States
Spores (in Melzer) of oysterling mushrooms Clitopilus hobsonii (spore print light brown) collected a day before in Sam Houston National Forest. Texas, February 20, 2023
Spores (in lugol) of oysterling mushrooms Clitopilus hobsonii collected a day before in Sam Houston National Forest. Texas, February 20, 2023
Spores (in KOH solution) of oysterling mushrooms Clitopilus hobsonii collected a day before in Sam Houston National Forest. Texas, February 20, 2023The observations document the presence of oysterling mushrooms, specifically Clitopilus hobsonii, in various locations within Sam Houston National Forest, Texas. The mushrooms were found on rotting wood, logs, and tree branches between 2020 and 2023. They were described as tiny, white, and mature, with some uncertainty about their identity, potentially being Crepidotus species. Spore prints were taken, and spores were examined under low and high magnification, using different solutions such as Melzer, lugol, and KOH. The observations provide a record of the mushroom's habitat, morphology, and microscopic characteristics, contributing to the understanding of this species in the region. Overall, the observations suggest that Clitopilus hobsonii is a common species in the forest, fruiting on decaying wood throughout the year.
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