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Fungi: Ascomycota: Pezizomycetes: Pezizales: Pyronemataceae: Melastiza cornubiensis (Berk. & Broome) J. Moravec, 1992

Melastiza cornubiensis – Orange cup

Synonyms: Aleuria cornubiensis, Cheilymenia cornubiensis, Humaria miniata, Lachnea cornubiensis, Lachnea miniata, Melastiza miniata, Neottiella cornubiensis, Otidea aurantia, Peziza aurantia, Peziza cornubiensis, Peziza miniata, Scutellinia miniata.

Common name: orange cup.

Russian name: Melastitsa kornuelskaya.

Extract from Wikipedia article: Melastiza cornubiensis is a species of apothecial fungus belonging to the family Pyronemataceae.

AI-generated description

Melastiza cornubiensis is a small, disc-shaped fungus with a reddish-brown to orange-brown color. It has been found in St. Petersburg and the surrounding Leningrad Oblast region of north-western Russia, typically growing on mosses, plant debris, and soil in damp, shaded areas. The species is considered rare in the region, but its distribution may be underreported due to its small size and inconspicuous growth habit.

Photos of this mushroom from the area of St. Petersburg, Russia

Apothecial fungus <B>Melastiza cornubiensis</B> near Dibuny, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-06-27.htm">June 27, 2017</A>
LinkApothecial fungus Melastiza cornubiensis near Dibuny, west from Saint Petersburg. Russia, June 27, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197758
Orange-red disks of fungus <B>Melastiza cornubiensis</B> near Dibuny, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-06-27.htm">June 27, 2017</A>
LinkOrange-red disks of fungus Melastiza cornubiensis near Dibuny, west from Saint Petersburg. Russia, June 27, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197758
Orange-red disks of fungus <B>Melastiza cornubiensis</B> on roadside near Dibuny, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-06-27.htm">June 27, 2017</A>
LinkOrange-red disks of fungus Melastiza cornubiensis on roadside near Dibuny, west from Saint Petersburg. Russia, June 27, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197758
Orange cup mushrooms (<B>Melastiza cornubiensis</B>) on a roadside pile of soil in Lembolovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-05.htm">July 5, 2017</A>
LinkOrange cup mushrooms (Melastiza cornubiensis) on a roadside pile of soil in Lembolovo, 40 miles north from Saint Petersburg. Russia, July 5, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Orange cup mushrooms (<B>Melastiza cornubiensis</B>) on soil in Lembolovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-05.htm">July 5, 2017</A>
LinkOrange cup mushrooms (Melastiza cornubiensis) on soil in Lembolovo, 40 miles north from Saint Petersburg. Russia, July 5, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Orange cup mushrooms (<B>Melastiza cornubiensis</B>) on sandy soil on road in Lembolovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-05.htm">July 5, 2017</A>
LinkOrange cup mushrooms (Melastiza cornubiensis) on sandy soil on road in Lembolovo, 40 miles north from Saint Petersburg. Russia, July 5, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Orange cup fungus (<B>Melastiza cornubiensis</B>) on wet clay soil of a road in Lembolovo, 35 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-08.htm">August 8, 2017</A>
LinkOrange cup fungus (Melastiza cornubiensis) on wet clay soil of a road in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Orange cup fungus (<B>Melastiza cornubiensis</B>) in Lembolovo, 35 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-08.htm">August 8, 2017</A>
LinkOrange cup fungus (Melastiza cornubiensis) in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Orange cup fungus (<B>Melastiza cornubiensis</B>)(?) on wet soil on road in Lembolovo, 35 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-08.htm">August 8, 2017</A>
LinkOrange cup fungus (Melastiza cornubiensis)(?) on wet soil on road in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695

AI-generated summary of observations

Observations of Melastiza cornubiensis were made in Leningrad Oblast and north-western Russia, specifically near Dibuny and Lembolovo, between June and August 2017. The fungus was found growing on roadside soil, sandy soil, and wet clay soil. Apothecial disks were observed to be orange-red in color. In Lembolovo, the fungus was found on a roadside pile of soil, as well as on soil and sandy soil on roads. Similar observations were made in multiple locations, with some specimens showing slight variations, such as uncertain identification. The fungus was seen growing in various conditions, including wet environments, over the course of several weeks during the summer months. Multiple sightings suggest that Melastiza cornubiensis is present in the region and can thrive in different soil types.

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Links

Acknowledgements

Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.

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