Synonyms: Astrocystis freycinetiae, Hypoxylon adumbratio, Hypoxylon bipapillatum, Hypoxylon freycinetiae, Hypoxylon subannulatum, Nemania subannulata.
Nemania bipapillata is a species of fungus in the family Xylariaceae, characterized by its effused-reflexed to stipitate basidiocarps, bipapillate ascospores, and growth on decaying hardwood logs. In East and Central Texas, it typically fruits from April to October, commonly found on submerged or partially submerged wood in streams, rivers, and lakes, as well as on decomposing logs in moist, shaded areas of forests dominated by trees such as oak, elm, and willow.
Black crust fungus Hypoxylon bipapillatum (Nemania bipapillata) or may be other Hypoxylaceae on a small dry fallen tree in wet area in Watson Rare Native Plant Preserve. Warren, Texas, November 23, 2019
263 Co Rd 4777, Warren, TX 77664, USAObservations of Nemania bipapillata in East and Central Texas reveal its presence on small, dry, fallen trees in wet areas. Specifically, on November 23, 2019, the fungus was spotted in Watson Rare Native Plant Preserve, Warren, Texas. The fungus formed a black crust on the tree, characteristic of Hypoxylon bipapillatum or possibly other Hypoxylaceae species. Similar observations have been made in other parts of East and Central Texas, suggesting that Nemania bipapillata thrives in humid environments with abundant decaying wood. The fungus tends to colonize small, fallen trees, where it can break down organic matter and play a crucial role in nutrient cycling. Further observations are needed to fully understand the distribution and ecology of Nemania bipapillata in this region. Its presence highlights the importance of preserving natural habitats like Watson Rare Native Plant Preserve.
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