Synonyms: Corticium echinosporum, Hypochnus echinosporus, Pseudotomentella echinospora, Terana echinospora, Tomentella echinospora, Tomentella flavovirens, Tomentella incarnata.
Tomentellopsis echinospora is a species of fungus in the family Thelephoraceae. It produces resupinate to reflexed, waxy to velvety basidiocarps with a white to cream-colored surface and a smooth to tuberculate hymenium. In East and Central Texas, it has been found growing on decaying logs, stumps, and other woody debris in mixed hardwood forests, particularly in areas with rich soil and abundant moisture. Fruitings typically occur from spring to fall, with peak activity during the summer months. Microscopic characteristics include ellipsoid to subglobose basidiospores measuring 6-9 μm in length, which are echinulate with short spines.
Greenish yellow web-like corticioid fungus Tomentellopsis echinospora on underside of a rotting tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 10, 2020
Web-like corticioid fungus Tomentellopsis echinospora on a burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024
Growth pattern of web-like corticioid fungus Tomentellopsis echinospora on a burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024
Close-up of web-like corticioid fungus Tomentellopsis echinospora on a burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024
Texture of web-like corticioid fungus Tomentellopsis echinospora on a burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024
Thick layer of web-like corticioid fungus Tomentellopsis echinospora on a burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024
Yellow layer of web-like corticioid fungus Tomentellopsis echinospora on a burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024
Tissues (in Congo Red) of corticioid fungus Tomentellopsis echinospora collected on Stubblefield section of Lone Star hiking trail in Sam Houston National Forest. Texas, February 4, 2024
Web-like corticioid fungus Tomentellopsis echinospora under a burned pine log on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Close-up of corticioid fungus Tomentellopsis echinospora under a burned pine log on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025
Web-like hyphae of corticioid fungus Tomentellopsis echinospora under a burned pine log on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 18, 2025Observations of Tomentellopsis echinospora in East and Central Texas reveal its growth habits and characteristics. The fungus was found on a rotting tree in the Caney Creek section of the Lone Star Hiking Trail in December 2020, and later on burned pine logs in the Stubblefield section in February 2024. It exhibits a web-like corticioid appearance with a greenish-yellow color. Close-up observations show its texture and growth pattern, forming a thick layer on the substrate. The fungus was also observed to have a yellow layer, and when stained with Congo Red, its tissues were visible. These findings provide insight into the habitat and morphology of Tomentellopsis echinospora in this region, highlighting its ability to grow on various substrates, including rotting wood and burned logs. Its web-like appearance and coloration are distinctive features of this species.
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