Synonyms: Aleurocorticium macrodens, Aleurodiscus macrodens.
Dendrothele macrodens is a crust-like fungus that grows on trees, particularly oak and elm. In East and Central Texas, it has been found on various hosts, including live oaks and cedar elms. The fungus produces small, rounded or elongated conks that are white to cream-colored with a smooth to wrinkled surface. It is a relatively rare species in the region, but can be locally common in areas with suitable habitat.
Close-up of corticioid mushroom Dendrothele macrodens on bark of a recently fallen large hackberry in Lick Creek Park. College Station, Texas, January 9, 2023
Racoon Run Trail, Brazos County, Texas, United States
Corticioid mushroom Dendrothele macrodens on bark of a recently fallen big hackberry on a pipeline right of way in Lick Creek Park. College Station, Texas, January 9, 2023Racoon Run Trail, Brazos County, Texas, United States
Spores shaped as viruses or blood clots of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry tree, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
Large spores of unusual shape of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
Spore size 18.8 - 22.8 × 12.1 - 15.1 µm, length to width ratio Q = 1.32 - 1.7.
Polygonal spores at low magnification of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
Polygonal spores of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
Corticioid mushroom Dendrothele macrodens on a fallen branch of hackberry around 20 meters tall, on sewage line right-of-way, in Lick Creek Park. College Station, Texas, January 15, 2023Racoon Run Trail, Brazos County, Texas, United States
Close-up of corticioid mushroom Dendrothele macrodens on a fallen branch of hackberry around 20 meters tall, on sewage line right-of-way, in Lick Creek Park. College Station, Texas, January 15, 2023Racoon Run Trail, Brazos County, Texas, United States
Large hackberry tree with recently fallen large branches with corticioid mushroom Dendrothele macrodens, on sewage line right-of-way, in Lick Creek Park. College Station, Texas, January 15, 2023Racoon Run Trail, Brazos County, Texas, United States
Tissues if corticioid mushroom Dendrothele macrodens, collected in Lick Creek Park. College Station, Texas, January 15, 2023Dendrothele macrodens was observed growing on the bark of recently fallen hackberry trees and branches in Lick Creek Park, College Station, Texas. The fungus was found on large trunks and smaller branches, approximately 20 meters tall, often on areas with recent damage or decay. Microscopic examination revealed spores with unusual shapes, resembling viruses or blood clots, and polygonal shapes at low magnification. The spores were also observed to be quite large. The fungus was consistently associated with hackberry trees, suggesting a possible specificity in its substrate preferences. Observations were made over several days, from January 9 to 15, 2023, indicating that the fungus is active during this time period in East and Central Texas. Tissue samples of the fungus were also collected for further study.
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