Yellow Fairy Cups Bisporella citrina (Batsch) Korf & S.E. Carpenter  Synonyms: Lemon Discos, Lemon Drops.

Status:

This tiny species is easily overlooked, but is widespread in the Americas, Europe, and Africa. It is found in clusters on rotting wood in late summer and fall.

Description:

Fruiting body: Lemon-yellow to golden; tiny (to 1/8" -3 mm); smooth; saucer-shaped from above, like a nail-head in side view. Stalk: Rudimentary, tiny, white to none (J. Solem, pers. comm.).

Where to find:

Generally dense clusters on debarked, decaying hardwoods.

There are 95 records in the project database.

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Yellow Fairy Cups growing on an acorn cap in Montgomery Co., Maryland (9/11/2018). Determined by Jo Solem. Photo by Anne Looker. (MBP list)

Yellow Fairy Cups in Howard Co., Maryland (8/8/20`4). Photo by Richard Orr. (MBP list)

Yellow Fairy Cups (fruiting bodies) in Howard Co., Maryland (10/17/2016). Photo by Joanne Solem. (MBP list)

Yellow Fairy Cups in Baltimore Co., Maryland (12/25/2018). Determined by Jo Solem. Photo by Sue Muller. (MBP list)

Yellow Fairy Cups on a rotting log in Howard Co., Maryland (11/4/2014). Photo by Richard Orr. (MBP list)

Yellow Fairy Cups fruiting on a deciduous log in Worcester Co., Maryland (9/30/2014). Photo by Lance Biechele. (MBP list)

Yellow Fairy Cups in Howard Co., Maryland (10/20/2018). Determined by Bob and Jo Solem. Photo by Sue Muller. (MBP list)

Yellow Fairy Cups in Howard Co., Maryland (8/27/2009). Photo by Robert Solem. (MBP list)

Spores from Yellow Fairy Cups collected in Howard Co., Maryland (10/17/2016). Cylindrical w/ oil droplet at each end, smooth, hyaline; measured 11.1-14.0 x 3.8-5.2 microns. Photo by Robert Solem. (MBP list)

Asci and spores collected from a Yellow Fairy Cups specimen in Howard Co., Maryland (11/4/2014). Measured 89-95 X 7.1-8.2 microns. Photo by Robert Solem. (MBP list)


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