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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Psathyrellaceae: Coprinopsis stercorea (Fr.) Redhead, Vilgalys & Moncalvo

Coprinopsis stercorea

Synonyms: Agaricus stercorarius, Coprinus stercorarius, Coprinus stercoreus, Cortinarius stercorarius, Fungus stercorarius.

AI-generated description

Coprinopsis stercorea is a species of fungus that grows on dung, particularly from herbivores. In East and Central Texas, it has been found to fruit in the spring and fall, typically on cow and horse dung in pastures and fields. The fungus produces small to medium-sized bell-shaped caps that are initially white or light brown, turning black and inky as they mature and release their spores. It is a relatively common species in the region, often appearing in large numbers after rainfall.

Photos of this mushroom from East and Central Texas

Tiny inkcap mushroom <B>Coprinopsis stercorea</B> on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2019-11-03.htm">November 3, 2019</A>
LinkTiny inkcap mushroom Coprinopsis stercorea on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of a tiny inkcap mushroom <B>Coprinopsis stercorea</B> on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2019-11-03.htm">November 3, 2019</A>
LinkUnderside of a tiny inkcap mushroom Coprinopsis stercorea on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Side view of a tiny inkcap mushroom <B>Coprinopsis stercorea</B> on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2019-11-03.htm">November 3, 2019</A>
LinkSide view of a tiny inkcap mushroom Coprinopsis stercorea on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of a tiny inkcap mushroom <B>Coprinopsis stercorea</B> on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2019-11-03.htm">November 3, 2019</A>
LinkCap of a tiny inkcap mushroom Coprinopsis stercorea on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA
Tiny inkcap mushrooms <B>Coprinopsis stercorea</B> on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, <A HREF="../date-en/2019-11-03.htm">November 3, 2019</A>
LinkTiny inkcap mushrooms Coprinopsis stercorea on horse dung on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Location on mapsLone Star Hiking Trail, Montgomery, TX 77356, USA

AI-generated summary of observations

Observations of the fungus Coprinopsis stercorea in East and Central Texas reveal its growth on horse dung. On November 3, 2019, tiny inkcap mushrooms were found on Sand Branch Loop Trail in Sam Houston National Forest near Richards. The underside of the mushroom was observed, as well as its side view, showcasing its small size. The cap of the mushroom was also examined, highlighting its distinctive features. Multiple tiny inkcap mushrooms were found growing together on horse dung, indicating a thriving colony. These observations suggest that Coprinopsis stercorea is well-adapted to growing on horse dung in this region, and can be found in abundance in areas with suitable substrate. The fungus appears to thrive in the conditions present in Sam Houston National Forest.

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Acknowledgements

Mushroom Observer and Facebook for learning names of local mushrooms.

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