Lactarius rimosellus is a small to medium-sized, reddish-brown to orange-brown fungus with a wrinkled or rimose cap and white to pale yellow gills. It grows in association with oak trees, particularly post oak and live oak, in East and Central Texas. The fruiting bodies typically appear from May to October, often in areas with rich soil and abundant leaf litter. In this region, Lactarius rimosellus is considered a relatively common species, particularly in the Edwards Plateau and Piney Woods ecoregions.
Milkcap mushrooms Lactarius rimosellus on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018
Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Milkcap mushrooms Lactarius rimosellus on rotting wood in wet area on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 27, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Group of milkcap mushrooms Lactarius rimosellus on rotting wood on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 27, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Milkcap mushrooms Lactarius rimosellus on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Milkcap mushrooms Lactarius rimosellus under small oaks in Lick Creek Park. College Station, Texas, June 9, 2020Iron Bridge Trail, College Station, TX 77845, USA
Milkcap mushroom Lactarius rimosellus on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cap of mushroom Lactarius rimosellus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Broken cap of mushroom Lactarius rimosellus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Milkcap mushrooms Lactarius rimosellus on a mossy pine stump on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 5, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Cross section of milkcap mushrooms Lactarius rimosellus on a mossy pine stump on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 5, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Milkcap mushrooms Lactarius rimosellus on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 2, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Milkcap mushrooms Lactarius rimosellus on rotting pine wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 5, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores (in lugol) of milkcap mushrooms Lactarius rimosellus from rotting pine wood, collected in Sam Houston National Forest near Montgomery. Texas, May 5, 2023
Spores (in toluidine blue) of milkcap mushrooms Lactarius rimosellus from rotting pine wood, collected in Sam Houston National Forest near Montgomery. Texas, May 5, 2023
Milkcap mushrooms Lactarius rimosellus (spore print brownish) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Milkcap mushrooms Lactarius rimosellus on a fallen pine cone on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Spores of milkcap mushrooms Lactarius rimosellus from a pine log, collected on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023
Milkcap mushrooms Lactarius rimosellus on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 6, 2024Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of milkcap mushrooms Lactarius rimosellus from rotting wood, collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 6, 2024Observations of the fungus Lactarius rimosellus in East and Central Texas reveal that it grows in various habitats, including rotting wood, wet areas, and under small oaks. It has been found on trails such as Little Lake Creek Loop Trail, Winters Bayou Trail, Richards Loop Trail, and Caney Creek Trail in Sam Houston National Forest. The fungus typically grows on decaying pine wood, mossy pine stumps, and even fallen pine cones. Spore prints are brownish, and spores have been observed under lugol and toluidine blue. The mushrooms have been spotted throughout the year, with sightings in September, October, April, May, June, and December. They tend to thrive in areas with abundant moisture, such as floodplains and near creeks. Overall, Lactarius rimosellus appears to be a common species in East and Central Texas, particularly in the Sam Houston National Forest.
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