Synonyms: Oudemansiella incognita, Xerula incognita.
Hymenopellis incognita is a species of fungus in the family Physalacriaceae. It has a small to medium-sized cap that is convex to bell-shaped, typically measuring 1-4 cm in diameter, and is often yellow-brown to golden brown in color. The gills are crowded and free from the stem. In East and Central Texas, Hymenopellis incognita has been found growing in a variety of habitats, including lawns, fields, and woodland edges, typically in association with grasses or other herbaceous plants. Fruitings often occur from spring to fall, particularly after heavy rainfall.
Rooted agaric mushroom Hymenopellis incognita (Oudemansiella incognita) in Lick Creek Park. College Station, Texas, May 30, 2018
Side view of a rooted agaric mushroom Hymenopellis incognita (Oudemansiella incognita) in Lick Creek Park. College Station, Texas, May 30, 2018
Gills of a rooted agaric mushroom Hymenopellis incognita (Oudemansiella incognita) in Lick Creek Park. College Station, Texas, May 30, 2018
Rooted agaric mushroom with a yellow cap Hymenopellis incognita (Oudemansiella incognita) in Lick Creek Park. College Station, Texas, May 30, 2018
Rooted agaric mushrooms Hymenopellis incognita (Oudemansiella incognita) in Lick Creek Park. College Station, Texas, June 25, 2019
Caps of rooted agaric mushrooms Hymenopellis incognita (Oudemansiella incognita) in Lick Creek Park. College Station, Texas, June 25, 2019
Rooted agaric mushroom Hymenopellis incognita (Oudemansiella incognita) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019
Gills of a rooted agaric mushroom Hymenopellis incognita (Oudemansiella incognita) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019
Gills of a mushroom Hymenopellis incognita (Oudemansiella incognita) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 21, 2021
Slimy yellow cap of a mushroom Hymenopellis incognita (Oudemansiella incognita) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 21, 2021
Side view of a mushroom Hymenopellis incognita (Oudemansiella incognita) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 21, 2021
Spore print of a mushroom Hymenopellis incognita (Oudemansiella incognita) collected in Sam Houston National Forest a day before. Texas, October 22, 2021
Upper view of mushroom Hymenopellis incognita in Lick Creek Park. College Station, Texas, November 4, 2021
Side view of mushroom Hymenopellis incognita in Lick Creek Park. College Station, Texas, November 4, 2021
Gills of mushroom Hymenopellis incognita in Lick Creek Park. College Station, Texas, November 4, 2021
Yellow slimy cap of mushroom Hymenopellis incognita in Lick Creek Park. College Station, Texas, November 4, 2021
Rooted Collybia mushrooms Hymenopellis incognita(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2023
Yellow caps of rooted Collybia mushrooms Hymenopellis incognita(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2023
Underside of rooted Collybia mushroom Hymenopellis incognita(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2023
Gills of rooted Collybia mushroom Hymenopellis incognita(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2023
Spores of of rooted Collybia mushroom Hymenopellis incognita(?) collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 1, 2023Observations of the fungus Hymenopellis incognita in East and Central Texas reveal a mushroom with distinct characteristics. The caps are typically yellow and slimy, with gills underneath. The mushrooms were found growing on the ground, often with a rooted base. Observations were made at Lick Creek Park in College Station and Caney Creek Trail in Sam Houston National Forest, with sightings occurring between May 2018 and April 2023. The mushrooms were seen during various times of the year, including spring, summer, fall, and winter. Spore prints were also collected, providing further insight into the species' characteristics. The observations suggest that Hymenopellis incognita is a relatively common species in the region, with a wide range of habitats and growth patterns. Overall, the observations provide valuable information about the morphology and distribution of this fungus in East and Central Texas.
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