Synonyms: Boletus arboreus, Coniophora dimitiella, Gyrophana himantioides, Merulius americanus, Merulius gelatinosus, Merulius himantioides, Merulius lacrymans, Merulius papyraceus, Merulius papyrinus, Merulius silvester, Merulius squalidus, Serpula americana, Serpula lacrymans, Serpula papyracea, Serpula squalida, Sesia himantioides, Sesia papyracea, Sesia squalida, Xylomyzon versicolor.
Common name: dry rot.
Extract from Wikipedia article: Serpula himantioides is a species of fungus that causes damage to timber referred to as dry rot. It is a basidiomycete in the order Boletales. It has been found on all continents except for Antarctica. Recent molecular work demonstrates that S. himantioides is a species complex including multiple cryptic lineages.
Estonian: Metsvamm, German: Wilder Hausschwamm, Polish: Stroczek leśny, Swedish: Timmergröppa.
Serpula himantioides is a brown-rot fungus that grows on decaying wood, particularly coniferous logs. In East and Central Texas, it typically fruits from January to May, producing effused-reflexed to stipitate basidiocarps with a smooth, wavy, or lobed margin. The caps are 2-10 cm wide, yellowish-brown to reddish-brown, and have a velvety to hairy surface. The spores are cylindrical, 4-6 μm long, and 1.5-2.5 μm wide. It is commonly found on pine and cedar logs in moist, shaded areas.
Warped pink crust fungus Serpula himantioides(?) on underside of a pine log on Little Lake Creek Loop Trail east from Trailhead No. 4 in Sam Houston National Forest, near Montgomery. Texas, December 22, 2020
Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Margin of a pink crust fungus Serpula himantioides(?) on underside of a pine log on Little Lake Creek Loop Trail east from Trailhead No. 4 in Sam Houston National Forest, near Montgomery. Texas, December 22, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Warped pink crust (corticioid) fungus Serpula himantioides(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Margin of warped pink crust (corticioid) fungus Serpula himantioides(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Corticioid mushroom Serpula himantioides on underside of a pine log on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, January 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
White margin of corticioid mushroom Serpula himantioides on underside of a pine log on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, January 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Corticioid mushroom Serpula himantioides under bark on a pine log on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, January 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Details of corticioid mushroom Serpula himantioides on underside of a pine log on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, January 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Texture of corticioid mushroom Serpula himantioides on underside of a pine log on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, January 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Pink margin of corticioid mushroom Serpula himantioides on underside of a pine log on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, January 1, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Warped crust fungus Serpula himantioides(?) on a lower part of a large pine log on Little Lake Creek Loop Trail east from Trailhead No. 4 in Sam Houston National Forest, near Montgomery. Texas, January 2, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Corticioid mushroom Serpula himantioides 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
White margin of corticioid mushroom Serpula himantioides 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 mushroom Serpula himantioides together with some white polypore 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 Serpula himantioides 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 Serpula himantioides 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 mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Fluffy margin of corticioid mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Texture of corticioid mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Close-up of corticioid mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Folded surface of corticioid mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Web-like outgrowth of corticioid mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Ridged texture of corticioid mushroom Serpula himantioides on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021Lone Star Hiking Trail, Richards, TX 77873, USA
Fresh growth of corticioid fungus Serpula himantioides on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Texture of merulioid corticioid fungus Serpula himantioides on underside a large pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Merulioid corticioid fungus Serpula himantioides with its margins on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Pattern of growth of merulioid corticioid fungus Serpula himantioides on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Close-up of merulioid corticioid fungus Serpula himantioides on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Young growth of merulioid corticioid fungus Serpula himantioides on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Soft white young growth of corticioid fungus Serpula himantioides on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
White web-like young growth of corticioid fungus Serpula himantioides on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 11, 2023Lone Star Hiking Trail, Montgomery County, Texas, 77873, United States
Spores (in lugol) of wrinkled crust fungus Serpula himantioides from a pine log (spore print orange-brown, turns orange in KOH), collected a day before in Sam Houston National Forest. Texas, January 12, 2023
Spores (in KOH) of corticioid fungus Serpula himantioides from a pine log, collected a day before in Sam Houston National Forest. Texas, January 12, 2023
Spore size 7.9 - 9.2 × 5 - 5.7 µm, length to width ratio Q = 1.54 - 1.68.
Dry rot fungus (Serpula himantioides) 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
Dry rot fungus (Serpula himantioides) 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
Close-up of dry rot fungus (Serpula himantioides) 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
White margins of dry rot fungus (Serpula himantioides) 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
Close-up of dry rot fungus (Serpula himantioides) 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
Texture of dry rot fungus (Serpula himantioides) 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
Tissues and spores of dry rot fungus (Serpula himantioides) collected on Stubblefield section of Lone Star hiking trail in Sam Houston National Forest. Texas, February 4, 2024
Spores and basidia(?) of dry rot fungus (Serpula himantioides) collected on Stubblefield section of Lone Star hiking trail in Sam Houston National Forest. Texas, February 4, 2024The fungus Serpula himantioides was observed in East and Central Texas, primarily in the Sam Houston National Forest. The observations span from December 2020 to February 2024. The fungus was found growing on pine logs, often on the underside, and was described as a pink or white crust-like growth with a warped or ridged texture. Some observations noted a fluffy or web-like margin. The fungus was also observed on burned pine logs. Spore prints were taken, and spores were observed under a microscope. The observations suggest that Serpula himantioides is a common species in the area, capable of growing on various substrates, including burned wood. The observations provide valuable information on the morphology and growth habits of this fungus in its natural habitat. Overall, the data contribute to our understanding of the ecology and distribution of Serpula himantioides in Texas.
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