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Fungi: Basidiomycota: Agaricomycetes: Polyporales: Meruliaceae: Hyphoderma leoninum Burds. & Nakasone

Hyphoderma leoninum

Synonym: Amethicium leoninum.

AI-generated description

Hyphoderma leoninum is a crust fungus that grows on decaying wood, characterized by its thin, membranous to crustose basidiocarp, and smooth, waxy to velvety hymenial surface. In East and Central Texas, it has been found on various deciduous and coniferous substrates, including oak, pine, and cedar, often in moist, shaded areas. The fungus produces small, cylindrical spores, typically 5-7 x 2-3 μm in size, and is commonly encountered during the spring and fall months when humidity is high.

Photos of this mushroom from East and Central Texas

Light brown corticioid fungus <B>Hyphoderma leoninum</B>(?) on a fallen oak(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, <A HREF="../date-en/2021-12-12.htm">December 12, 2021</A>
LinkLight brown corticioid fungus Hyphoderma leoninum(?) on a fallen oak(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 12, 2021
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Light brown corticioid fungus <B>Hyphoderma leoninum</B>(?) with white margin on a fallen oak(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, <A HREF="../date-en/2021-12-12.htm">December 12, 2021</A>
LinkLight brown corticioid fungus Hyphoderma leoninum(?) with white margin on a fallen oak(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 12, 2021
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States

AI-generated summary of observations

Observations of the fungus Hyphoderma leoninum in East and Central Texas reveal its presence on fallen oaks. On December 12, 2021, a light brown corticioid fungus, identified as Hyphoderma leoninum, was found on a fallen oak on Caney Creek Trail in Sam Houston National Forest. The fungus had a distinctive appearance with a white margin. Another observation on the same trail and date noted a similar light brown corticioid fungus with a white margin on a fallen oak, also identified as Hyphoderma leoninum. These findings suggest that Hyphoderma leoninum is present in the region, specifically in Sam Houston National Forest, and can be found growing on decaying oak wood. The consistent appearance of the fungus with a white margin was noted in both observations.

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Acknowledgements

Mushroom Observer and Facebook for learning names of local mushrooms.

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