Synonym: Crepidotus amarus.
Simocybe amara is a small to medium-sized fungus with a bell-shaped to convex cap that ranges in color from yellowish-brown to reddish-brown. It has a slender stem and gills that are crowded and narrow. In East and Central Texas, Simocybe amara typically fruits in the fall, often growing solitary or in small groups on the ground in wooded areas, particularly under oak and pine trees. The fungus is known for its bitter taste, which is reflected in its species name "amara".
Tiny pleurotoid mushrooms Simocybe amara(?) on a fallen trunk of Japanese privet in Hensel Park. College Station, Texas, May 8, 2023
East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Gills of tiny pleurotoid mushrooms Simocybe amara(?) on a fallen trunk of Japanese privet in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Group of tiny pleurotoid mushrooms Simocybe amara(?) on a fallen trunk of Japanese privet in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Spores (may be contaminated) of tiny pleurotoid mushrooms Simocybe amara(?) from a fallen trunk of Japanese privet, collected in Hensel Park. College Station, Texas, May 8, 2023
Gill tissue with cheilocystidia and basidiospores of tiny pleurotoid mushrooms Simocybe amara(?) from a fallen trunk of Japanese privet, collected in Hensel Park. College Station, Texas, May 8, 2023
Cheilocystidia and spores (in Congo Red) of tiny pleurotoid mushrooms Simocybe amara(?) from a fallen trunk of Japanese privet, collected in Hensel Park. College Station, Texas, May 8, 2023
Basidia and spores (in Congo Red) of tiny pleurotoid mushrooms Simocybe amara(?) from a fallen trunk of Japanese privet, collected in Hensel Park. College Station, Texas, May 8, 2023
Spores, cheilocystidia and basidia (in Congo Red) of tiny pleurotoid mushrooms Simocybe amara(?) from a fallen trunk of Japanese privet, collected in Hensel Park. College Station, Texas, May 8, 2023
Spores of tiny pleurotoid mushrooms Simocybe amara(?) from a fallen trunk of Japanese privet, collected in Hensel Park two days before. College Station, Texas, May 10, 2023
Spore size 6.4 - 7.3 × 5 - 5.6 µm, length to width ratio Q = 1.2 - 1.4.Observations of the fungus Simocybe amara were made in East and Central Texas, specifically in Hensel Park, College Station. The tiny pleurotoid mushrooms were found growing on a fallen trunk of Japanese privet on May 8, 2023. The gills of the mushrooms were observed, as well as groups of the mushrooms growing together. Spores were collected and examined, with some potentially contaminated samples. Microscopic examination revealed cheilocystidia, basidiospores, and basidia, which were stained with Congo Red for better visualization. Similar observations were made on a sample collected two days later, on May 10, 2023. The mushrooms were found to have distinct characteristics, including tiny size and pleurotoid shape, growing on a specific substrate, Japanese privet.
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