Synonyms: Auricularia sanguinolenta, Haematostereum sanguinolentum, Merulius sanguinolentus, Mesenterica sanguinolenta, Phlebomorpha sanguinolenta, Stereum balsameum, Stereum rigens, Thelephora sanguinolenta, Thelephora sericea.
Common name: bleeding conifer crust.
Extract from Wikipedia article: Stereum sanguinolentum is a species of fungus in the Stereaceae family. A plant pathogen, it causes red heart rot, a red discoloration on conifers, particularly spruces or Douglas-firs. Fruit bodies are produced on dead wood, or sometimes on dead branches of living trees. They are a thin leathery crust of the wood surface. Fresh fruit bodies will bleed a red-colored juice if injured, reflected in the common names bleeding Stereum or the bleeding conifer parchment. It can be the host of the parasitic jelly fungus Tremella encephala.
Czech: Pevník krvavějící, Finnish: Verinahakka, German: Blutender Nadelholz-Schichtpilz, Lithuanian: Kraujuojanti plutpintė, Polish: Skórnik krwawiący, Russian: Стереум краснеющий, Swedish: Blödskinn, Welsh: Crawen waedlyd y conwydd.
Stereum sanguinolentum is a crust fungus that grows on dead wood, characterized by its reddish-brown to purple-red upper surface and white to pale yellow lower surface. In East and Central Texas, it typically fruits from spring to fall, often on oak, elm, and willow logs. The fungus is relatively common in the region's deciduous forests, particularly in areas with rich soil and abundant hardwood debris. Its fruiting bodies are usually small, 1-5 cm wide, and semi-circular to irregular in shape, with a wavy or lobed margin.
Bleeding conifer crust fungus (Stereum sanguinolentum) on pine twigs on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, January 23, 2021
Forest Service Rd 213, Huntsville, TX 77340, USA
Corticioid fungus bleeding conifer crust (Stereum sanguinolentum) on pine twigs on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, January 23, 2021Forest Service Rd 213, Huntsville, TX 77340, USA
Bleeding conifer crust fungus (Stereum sanguinolentum) on a fallen pine branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021Big Creek Trail, Shepherd, TX 77371, USA
Scratched surface of bleeding conifer crust fungus (Stereum sanguinolentum) on a fallen pine branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021Big Creek Trail, Shepherd, TX 77371, USA
Close-up of bleeding conifer crust fungus (Stereum sanguinolentum) on a fallen pine branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021Big Creek Trail, Shepherd, TX 77371, USA
Texture of bleeding conifer crust fungus (Stereum sanguinolentum) on a fallen pine branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021Big Creek Trail, Shepherd, TX 77371, USAObservations of Stereum sanguinolentum in East and Central Texas indicate that the fungus grows on pine twigs and branches, particularly in areas such as the Sam Houston National Forest near Huntsville and Shepherd. The fungus has been spotted on both standing trees, like those on Four Notch Loop Trail, and fallen branches in Big Creek Scenic Area. Upon closer inspection, the surface of the fungus appears to have a distinct texture, and when scratched, it reveals its characteristic bleeding feature, releasing a reddish liquid. These observations were made during different times of the year, including January 23, 2021, and July 10, 2021, suggesting that Stereum sanguinolentum can be found in this region throughout various seasons. The fungus's growth on pine substrates is consistent across different locations within East and Central Texas.
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