Synonyms: Anthostoma microplacum, Biscogniauxia scutata, Diatrype microplaca, Hypoxylon lamprostoma, Hypoxylon microplacum, Nummularia gracilenta, Nummularia lamprostoma, Nummularia microplaca, Nummularia scutata, Numulariola microplaca.
Whalleya microplaca is a species of fungus in the Ascomycota phylum. It is characterized by its small, globose to subglobose ascocarps and cylindrical asci. In East and Central Texas, Whalleya microplaca has been found growing on decaying wood and plant material, often in association with other fungi. Specimens have been collected from various habitats, including forests, grasslands, and riparian areas, typically in regions with high humidity and moderate temperatures. The fungus produces dark brown to black ascocarps that are 0.1-0.5 mm in diameter, containing 8-spored asci with ascospores that are hyaline, ellipsoidal, and measure 5-7 μm in length.
Black crust fungus Whalleya microplaca (family Xylariaceae) on a fallen twig on a property at 5369 Farm to Market Road 770 near Kountze. Texas, June 8, 2019
5303 Farm to Market Rd 770, Kountze, TX 77625, USA
Black crust fungus Whalleya microplaca (family Xylariaceae) on a twig in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019263 Co Rd 4777, Warren, TX 77664, USA
Black crust fungus Whalleya microplaca (family Xylariaceae) on a twig collected at mushroom walk with Gulf States Mycological Society in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019527 Co Rd 4777, Warren, TX 77664, USA
Black crust fungus Whalleya microplaca (family Xylariaceae) on a dry Yaupon stem on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, February 1, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Black crust fungus Whalleya microplaca (family Xylariaceae) on a dry Yaupon stem in a pine forest on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, February 1, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USAObservations of Whalleya microplaca were made in East and Central Texas on various substrates. The fungus was found on a fallen twig near Kountze on June 8, 2019, and on twigs in Watson Rare Native Plant Preserve in Warren, Texas, on June 22, 2019, during two separate visits, including a mushroom walk with the Gulf States Mycological Society. Additional sightings occurred on dry Yaupon stems along Winters Bayou Trail in Sam Houston National Forest near Cleveland, Texas, on February 1, 2020, in both open areas and pine forests. The fungus consistently presented as a black crust on its host material, confirming its identity as Whalleya microplaca, a member of the Xylariaceae family. These observations suggest that Whalleya microplaca is present in various habitats in East and Central Texas, including preserves and national forests.
Mushroom Observer and Facebook for learning names of local mushrooms.
This web page was generated by a special script.