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Leucocoprinus birnbaumii.   Click a photo to enlarge it.   back to list

synonyms: Lepiota lutea, Leucocoprinus flos-sulfuris
Leucocoprinus birnbaumi GK Mushroom
Ref No: 9435
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Leucocoprinus birnbaumii Mushroom
Ref No: 20532
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Leucocoprinus birnbaumii2 Mushroom
Ref No: 20533
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location: North America, Europe
edibility: Poisonous/Suspect
fungus colour: White to cream, Yellow
normal size: Less than 5cm
cap type: Conical or nearly so
stem type: Ring on stem
flesh: Mushroom has distinct or odd smell (non mushroomy)
spore colour: White, cream or yellowish
habitat: Grows on the ground

Leucocoprinus birnbaumii (Corde) Singer syn. Leucocoprinus flos-sulfuris (Schnitz) Cejp Lepiota lutea (Bolton) Qul. Cap 2.5-6cm across, oval becoming broadly conical or bell-shaped then umbonate and flat, with the margin distinctly lined in mature specimens; bright yellow to greenish yellow or pale yellow or white, the disc sometimes darker or more brownish; dry, powdery to mealy or minutely scaly in age. Gills free, crowded; yellow or pale yellow. Stem 30-100x 1-5mm, slender, but slightly enlarged at the base; yellow; dry, smooth, or powdery. Veil yellow partial veil forms a small, collar-like ring on the upper stalk which may disappear. Flesh very thin; yellow. Spores ellipsoid, with an apical pore, smooth, dextrinoid, 8-13 x 5.5-8. Deposit white. Habitat singly or in groups or dense tufts on rich organic matter and on compost, decaying hay, and leaf piles; also in gardens and lawns in the South. Common in the South. Found in Europe and widely distributed in many parts of North America; indoors (greenhouses) in the North, outdoors in warmer areas. Season May-September, anytime indoors. Not edible - reported as poisonous to some people. Many thanks to Rachel Inbar for the pictures of the almost white form.

Members' images and comments

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Claudia Cobianchi (United States) - 26 May 2016

Austin TX
Leucocoprinus birnbaumii2
Claudia Cobianchi (United States) - 26 May 2016

Austin TX It's been rising for almost a month On my front lawn in new mulch
Leucocoprinus birnbaumii2
Ann Dalier (United States) - 26 May 2015

May 25, 2015. North Texas. Popped up in lawn after a downpour - high humidity and 70 degrees.
Leucocoprinus birnbaumii2
Morgan bo (United States) - 25 November 2014

I took a series of shots of this mushroom ( I think its Leucocoprinus birnbaumii ) life cycle. I live in the southeast of the united states.
Leucocoprinus birnbaumii2
Kristi Fitzgerald (United States) - 31 August 2014

Leucocoprinus birnbaumii2
Liz Biss (United States) - 14 August 2014

These are the second crop.
Leucocoprinus birnbaumii2
Liz Biss (United States) - 14 August 2014

These are growing on a balcony in a pot with French Tarragon. Houston, TX
Leucocoprinus birnbaumii2
Shane Rader (United States) - 20 July 2014

I believe this is young Leucocoprinus birnbaumii
Leucocoprinus birnbaumii2
Chris Jackson (United States) - 07 October 2013

Leucocoprinus birnbaumii2
Chris Jackson (United States) - 07 October 2013

I think these are L. Birnbaumii, but no ring on stems.
Leucocoprinus birnbaumii2
Ernest M Saenz (United States) - 13 September 2012

Chula Vista, Calif.growing in potted Asperagus Fern house plant on Sept. 12, 2012.
Leucocoprinus birnbaumii2
Ernest M Saenz (United States) - 12 September 2012

Growing in Asperagus Fern potted house plant soil.
Leucocoprinus birnbaumii2
Kiki Churchill (United States) - 24 July 2012

Growing in a potted plant on a patio in Minnesota.
Leucocoprinus birnbaumii2
Kiki Churchill (United States) - 24 July 2012

Growing in a potted plant on a patio in Minnesota.
Leucocoprinus birnbaumii2
Eric Roy (United States) - 14 October 2011

In a Jade plant...comes back every year...
Leucocoprinus birnbaumii2
tara fothergill (Canada) - 04 August 2010

these showed up in my houseplant, i think they are leucocoprinus birnbawmii
Leucocoprinus birnbaumii2
cameron yeager (United States) - 08 July 2010

Leucocoprinus birnbaumii2
Zane Stein (United States) - 06 June 2010

Leucocoprinus birnbaumii sharing a flower pot with Petroselinum neapolitanum (Parsley).
Leucocoprinus birnbaumii2
Harry Bradshaw (New Zealand) - 04 February 2010

This was growing in a Peace Lily pot at home in New Zealand, it looked exactly like picture ref 20533 as it grew
Leucocoprinus birnbaumii2
Ed Rose (United States) - 28 September 2009

I believe this is the L. birnbaumii. Photo taken 9-25-09 in Alabama, USA.
Leucocoprinus birnbaumii2
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