Synonyms: Agaricus pruinosus, Clitocybe cyathiformis, Clitocybe pruinosa, Clitocybe radicellata, Clitocybe verna, Omphalia cyathiformis, Pseudolyophyllum pruinosum.
Rhizocybe pruinosa is a species of fungus that belongs to the family Tricholomataceae. It is a small to medium-sized mushroom with a grayish-brown cap and white gills. In East and Central Texas, Rhizocybe pruinosa typically grows in association with oak trees, particularly live oak and post oak, during the spring and fall months. The fungus fruits solitary or in small groups on the ground in wooded areas, often in areas with rich soil and abundant leaf litter. Its mycelium is thought to form mycorrhizal relationships with the roots of its host trees.
Funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, February 22, 2020
Lone Star Hiking Trail, Huntsville, TX 77340, USA
Funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) among pine needles and elm leaves on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, February 22, 2020Lone Star Hiking Trail, Huntsville, TX 77340, USA
Close-up of funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under juniper and oak trees, near a pipeline clearing in Lick Creek Park. College Station, Texas, March 24, 2021Yaupon Loop, College Station, TX 77845, USA
Funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under juniper and oak trees, near a pipeline clearing in Lick Creek Park. College Station, Texas, March 24, 2021Yaupon Loop, College Station, TX 77845, USA
Dissected funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under juniper and oak trees, near a pipeline clearing in Lick Creek Park. College Station, Texas, March 24, 2021Yaupon Loop, College Station, TX 77845, USA
Funnel cap mushrooms Rhizocybe pruinosa (Clitocybe pruinosa) under juniper and oak trees in Lick Creek Park. College Station, Texas, March 30, 2021Yaupon Loop, College Station, TX 77845, USA
Mushrooms Rhizocybe pruinosa collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 9, 2022
Underside of mushrooms Rhizocybe pruinosa collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 9, 2022
Cross section of mushrooms Rhizocybe pruinosa collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 9, 2022
Gill of a mushroom Rhizocybe pruinosa under a microscope, collected on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 9, 2022Rhizocybe pruinosa was observed in various locations throughout East and Central Texas. In the Sam Houston National Forest near Huntsville, it was found on the Four Notch Loop Trail among pine needles and elm leaves in February 2020. Similarly, in Lick Creek Park in College Station, it was discovered under juniper and oak trees near a pipeline clearing in March 2021. The fungus was also collected on the North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north of Montgomery in February 2022. Observations included close-up views, dissected specimens, and microscopic examination of gill structures. The fungus was found to grow in association with various tree species, including pine, juniper, oak, and elm. These observations provide insights into the habitat and morphology of Rhizocybe pruinosa in East and Central Texas.
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