Synonyms: Coniophora crocea, Coniophora dryina, Coniophora laeticolor, Coniophorella crocea, Coniophorella laeticolor, Corticium dryinum, Corticium laeticolor, Peniophora crocea, Peniophora dryina, Peniophora viridis, Peniophora weirii, Terana dryina, Terana laeticolor, Xerocarpus laeticolor.
Extract from Wikipedia article: Crustoderma dryinum is a species of crust fungus in the family Meruliaceae, and the type species of the genus Crustoderma. It is found in Europe and Asia, where it causes a brown rot on conifer wood.
Swedish: Rostskinn.
Crustoderma dryinum is a crust-like fungus that grows on decaying wood. In East and Central Texas, it has been found on fallen branches and logs, particularly those of oak and maple trees. The fungus produces small, wart-like protrusions and has a white to cream-colored appearance with a smooth to velvety texture. It is typically 1-5 cm in diameter and has a waxy to brittle consistency.
Orange crust (Corticiaceae) fungus Crustoderma dryinum under a pine(?) log on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Lone Star Hiking Trail, Montgomery, TX 77356, USA
Close up of orange crust (Corticiaceae) fungus Crustoderma dryinum under a pine(?) log on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019Lone Star Hiking Trail, Montgomery, TX 77356, USA
Spreading orange crust (Corticiaceae) fungus Crustoderma dryinum on underside surface of a pine(?) log on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019Lone Star Hiking Trail, Montgomery, TX 77356, USA
Velvety orange corticioid mushroom Crustoderma dryinum on pine bark under a log in Bastrop State Park. Bastrop, Texas, November 28, 2019350 Harmon Rd, Bastrop, TX 78602, USA
Orange corticioid fungus Crustoderma dryinum on pine bark under a log in Bastrop State Park. Bastrop, Texas, November 28, 2019350 Harmon Rd, Bastrop, TX 78602, USA
Caterpillar on velvety orange corticioid fungus Crustoderma dryinum on pine bark under a log in Bastrop State Park. Bastrop, Texas, November 28, 2019350 Harmon Rd, Bastrop, TX 78602, USA
Some soft orange corticioid fungus Crustoderma dryinum on pine bark under a log in Bastrop State Park. Bastrop, Texas, November 28, 2019350 Harmon Rd, Bastrop, TX 78602, USA
Orange corticioid mushroom Crustoderma dryinum(?) on underside of a pine or may be oak log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Orange corticioid mushroom Crustoderma dryinum(?) on underside of a burnt pine or may be oak log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Corticioid mushroom Crustoderma dryinum(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Close-up of corticioid mushroom Crustoderma dryinum(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Texture of corticioid mushroom Crustoderma dryinum(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Corticioid fungus Crustoderma dryinum(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Close-up of corticioid fungus Crustoderma dryinum(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Orange patch of corticioid fungus Crustoderma dryinum(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Orange corticioid fungus Crustoderma dryinum(?) on rotting wood in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 21, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Close-up of orange crust (corticioid) fungus Crustoderma dryinum(?) on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 21, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Texture of orange corticioid fungus Crustoderma dryinum(?) on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 21, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Orange-brown crust fungus Crustoderma dryinum on a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 27, 2024Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Orange-brown corticioid fungus Crustoderma dryinum on a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 27, 2024Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of orange-brown crust fungus Crustoderma dryinum from a burned pine log, collected 2 days before on Richards Loop Trail in Sam Houston National Forest. Texas, January 29, 2024
Spore size 7.4 - 8.3 × 3.3 - 3.5 µm, length to width ratio Q = 2.2 - 2.4.
Corticioid mushroom Crustoderma dryinum on a large burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Texture of corticioid mushroom Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Corticioid mushroom Crustoderma dryinum with bonfire moss Funaria hygrometrica on a large burned pine log on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 4, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Orange crust of corticioid mushroom Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Pattern of corticioid mushroom Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Pattern of crust mushroom Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Close-up of corticioid fungus Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Close-up of orange corticioid fungus Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Close-up of fresh growth of orange corticioid fungus Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Fresh growth of orange corticioid fungus Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Fresh web-like growth of orange corticioid fungus Crustoderma dryinum on underside of 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Pattern of growth of orange corticioid fungus Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Orange corticioid fungus Crustoderma dryinum together with a white resupinate polypore 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Orange patches of corticioid fungus Crustoderma dryinum 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, 2024Lone Star Hiking Trail, Walker County, Texas, United States
Tissues under a microscope of orange corticioid fungus Crustoderma dryinum collected on Stubblefield section of Lone Star hiking trail in Sam Houston National Forest. Texas, February 4, 2024The fungus Crustoderma dryinum was observed in East and Central Texas from 2019 to 2024. It was found on pine logs, often in burnt or rotting wood, in Sam Houston National Forest and Bastrop State Park. The fungus appeared as an orange or orange-brown crust, sometimes with a velvety texture. Observations were made on various trails, including Sand Branch Loop Trail, Richards Loop Trail, Caney Creek Trail, and Lone Star hiking trail. Some observations noted the presence of other organisms, such as caterpillars and moss, near the fungus. Microscopic examination of the fungus's tissues was also conducted. The observations suggest that Crustoderma dryinum is a common species in the region, thriving on decaying pine wood, particularly in areas with recent fire activity. Its growth patterns and interactions with other organisms were documented in detail.
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