Synonyms: Amanita gemmata, Venenarius gemmatus.
Common name: Murrill's slender Caesar.
Amanita murrilliana is a species of mushroom in the genus Amanita, characterized by its medium to large size, brownish-gray cap, and white gills. In East and Central Texas, it typically fruits in late summer to early fall, often associated with oak and pine trees. The cap is 4-8 cm in diameter, convex to flat, and covered with small, grayish-brown warts. The stem is 6-12 cm tall, white to pale yellow, and has a bulbous base. It has been found in various counties of East Texas, including Angelina, Houston, and Trinity, as well as in Central Texas, particularly in the Lost Maples State Natural Area and the Hill Country.
Murrill's Slender Caesar mushroom (Amanita murrilliana) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, June 30, 2018
Lone Star Hiking Trail, Montgomery, TX 77356, USA
Dissected Murrill's Slender Caesar mushroom (Amanita murrilliana) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, June 30, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Amanita murrilliana mushrooms on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 29, 2019Little Lake Creek Loop Trail, Montgomery, TX 77356, USAObservations of Amanita murrilliana in East and Central Texas reveal its presence in specific habitats. On June 30, 2018, the fungus was found on the Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas. Dissection of the mushroom provided further details about its structure. Additionally, on September 29, 2019, Amanita murrilliana mushrooms were spotted on a floodplain along Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north of Montgomery, Texas. These sightings indicate that the fungus thrives in forest environments, particularly near water sources such as creeks and floodplains, in East and Central Texas during summer and early fall months. The observations highlight the species' preference for specific habitats and its seasonal growth patterns. The locations and dates of these sightings provide valuable information about the distribution and ecology of Amanita murrilliana.
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