Synonyms: Lachnea scutellata, Lachnea setosa, Scutellinia immersa.
Scutellinia nigrohirtula is a species of fungus in the family Pyronemataceae, characterized by its small to medium size, hairy exterior, and dark-colored hairs. In East and Central Texas, it typically fruits in the spring and fall on moist soil, dung, or decaying plant material, often in wooded areas or near streams. The fungus has a distribution across the region, with sightings reported in various counties, including Travis, Bastrop, and Houston. It produces ascospores that are typically brown to dark brown in color, measuring 12-18 micrometers in length.
Cup mushrooms Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita on a sandy wet side of a road with thin moss near a creek in Lick Creek Park. College Station, Texas, March 7, 2023
Iron Bridge Trail, College Station, Brazos County, Texas, United States
Orange Ascomycete mushrooms Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita on a sandy wet side of a road with thin moss near a creek in Lick Creek Park. College Station, Texas, March 7, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United States
Asci and paraphyses (in Congo Red) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Tissues under a microscope (with x40 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Cup tissues under a microscope (with x40 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Asci and paraphyses under a microscope (with x100 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Asci and paraphyses under a microscope (in lugol, with x100 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Asci and paraphyses under a microscope (with x40 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Paraphyses and asci under a microscope (with x100 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Spore from soil where Ascomycete fungus Scutellinia nigrohirtula(?) was growing, collected in Lick Creek Park. College Station, Texas, March 7, 2023
Hair under a microscope (with x10 objective) of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected in Lick Creek Park. College Station, Texas, March 7, 2023
Spores of Ascomycete fungus Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita collected a day before in Lick Creek Park. College Station, Texas, March 8, 2023
Spore size 19.1 - 21.7 × 13.15 - 14.5 µm, length to width ratio Q = 1.45 - 1.5.
Cup mushrooms Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita on a sandy wet side of a road with thin moss near a creek in Lick Creek Park. College Station, Texas, March 10, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United States
Orange Ascomycete mushrooms Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita on a sandy wet side of a road with thin moss near a creek in Lick Creek Park. College Station, Texas, March 10, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United States
Orange Ascomycete mushrooms with dark brown hair Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita in Lick Creek Park. College Station, Texas, March 10, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United States
Tiny orange cups of Ascomycete mushrooms Scutellinia nigrohirtula(?) or may be S. subhirtella with somewhat short hairs, or immature short-haired S. crinita on a sandy wet side of a road with thin moss near a creek in Lick Creek Park. College Station, Texas, March 10, 2023Iron Bridge Trail, College Station, Brazos County, Texas, United StatesObservations of Scutellinia nigrohirtula in East and Central Texas were made in Lick Creek Park, College Station, on multiple dates in March 2023. The fungus was found growing on the sandy wet side of a road with thin moss near a creek. It appeared as orange cup mushrooms with dark brown hair, and some specimens had somewhat short hairs. Microscopic examination revealed asci and paraphyses, and spores were also observed. The fungus was collected on March 7, 8, and 10, and its appearance varied slightly each day, with some specimens showing shorter or longer hairs. The observations suggest that Scutellinia nigrohirtula may be similar to S. subhirtella or immature S. crinita, but further identification is needed to confirm the species.
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