Synonyms: Acanthophysium nivosum, Aleurocorticium nivosum, Aleurodiscus nivosus, Stereum acerinum, Vuilleminia nivosa.
Dendrothele nivosa is a species of fungus that belongs to the family Corticiaceae. It is a crust-like fungus that grows on dead wood, typically on deciduous trees. In East and Central Texas, Dendrothele nivosa has been found on various substrates, including oak, elm, and willow. The fungus produces small, white to cream-colored basidiocarps that are waxy in texture and have a smooth to slightly wrinkled surface. It is a relatively common species in the region, often fruiting in late winter to early spring, particularly after periods of moist weather.
Corticioid mushroom Dendrothele nivosa on bark of Eastern red cedar (Juniper) in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
Close-up of corticioid fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
Corticioid fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 18, 2021
White patch of corticioid fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 18, 2021
White crust fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
Corticioid fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2021
Corticioid fungus Dendrothele nivosa on bark of Eastern red cedar (Juniper) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 29, 2021
Corticioid fungus Dendrothele nivosa on a recently cut red cedar (juniper) tree in Lake Bryan Park. Bryan, Texas, February 2, 2022
White crust fungus Dendrothele nivosa on a recently cut red cedar (juniper) tree in Lake Bryan Park. Bryan, Texas, February 2, 2022
White corticioid fungus Dendrothele nivosa on bark of red cedar (juniper) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
White crust fungus Dendrothele nivosa on bark of red cedar (juniper) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
Spores (in lugol) of white crust fungus Dendrothele nivosa from bark of red cedar (juniper), collected a day before near Birch Creek Unit of Somerville Lake State Park. Texas, January 17, 2023
Spores (stacked image) of white crust fungus Dendrothele nivosa from bark of red cedar (juniper), collected a day before near Birch Creek Unit of Somerville Lake State Park. Texas, January 17, 2023
Spores (in Congo Red) of white crust fungus Dendrothele nivosa from bark of red cedar (juniper), collected a day before near Birch Creek Unit of Somerville Lake State Park. Texas, January 17, 2023
Spores (in Toluidine blue at low magnification) of white crust fungus Dendrothele nivosa from bark of red cedar (juniper), collected a day before near Birch Creek Unit of Somerville Lake State Park. Texas, January 17, 2023
Spores (in Toluidine blue) of white crust fungus Dendrothele nivosa from bark of red cedar (juniper), collected a day before near Birch Creek Unit of Somerville Lake State Park. Texas, January 17, 2023
Spores of white crust fungus Dendrothele nivosa from bark of red cedar (juniper), collected 3 days before near Birch Creek Unit of Somerville Lake State Park. Texas, January 19, 2023Dendrothele nivosa was observed on the bark of Eastern red cedar (Juniper) in various locations across East and Central Texas. The fungus formed white patches or crusts on the tree bark, with observations recorded at McKinney Roughs Nature Park near Austin, Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park, Washington-on-the-Brazos State Historic Site, and Lake Bryan Park in Bryan. Observations were made over a period of nearly two years, from March 2021 to January 2023, suggesting the fungus is present year-round. Spore samples were also collected and examined under various stains, including Lugol, Congo Red, and Toluidine blue, providing further details about the fungus's morphology. The consistent presence of Dendrothele nivosa on Eastern red cedar across different locations and times suggests a strong association between the fungus and this tree species in East and Central Texas.
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