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Macrolepiota procera
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Macrolepiota procera

Common Name: The Parasol

Synonyms: Lepiota procera

Substrate: Ground

Location: Forests

Spore Color: White

Gill Color: White

Comments: 

This mushroom can be commonly found throughout the hardwoods of the state. The mushroom in the first picture has a height of about 6 inches and a cap diameter of around 3. These can become much larger. Some of the key features are a relativly thin stem that does not have an enlarged base, A cap that has brown scales and a central nipple, and a double-edged ring on the stem that will often move freely up and down.

Sometime in the near future, the naming will be drastically changed with this mushroom. According to those who study it, we do not have Macrolepiota procera in the United States. It is a European name. On top of that, there appears to be at least 4 or five different species of Macrolepiota around the US. This is likely one of them. I have never found it as large as some of the pictures suggest it can get.

Lookalikes:  

Some of the most common look-alikes are Chlorophyllum molybdites and 
Chlorophyllum rhaccodes. Chlorophyllum molybdites has a green spore print, but sometimes the gills will still appear white in younger specimens. The base will often change color when the flesh is cut. Often a reddish or orangeish color. Chlorophyllum rhaccodes has a thicker stem than M. procera as well as an enlarged base of the stem. Leucoagaricus americanus is also somewhat similar, but also usually has a swollen base and its flesh will bruise red when rubbed. 

Macrolepiota prominens is a name that some people use. It reportedly has whitish scales on the stem, rather than the brown scales in the picture. Ive not seen it in Indiana. 

Macrolepiota procera 

Macrolepiota procera

9/28/11 - Paynetown SRA - Bloomington, IN

Macrolepiota procera

Macrolepiota procera

9/1/12 - Paynetown SRA - Bloomington, IN

Macrolepiota procera

9/11/12 - Paynetown SRA - Bloomington, IN

Macrolepiota procera

Macrolepiota procera

Macrolepiota procera

Macrolepiota procera

Macrolepiota procera

10/5/11 - Brown County State Park - Nashville, IN

Macrolepiota procera

9/10/10 - Griffey Woods - Bloomington, IN

Macrolepiota procera

9/26/12 - Deam Wilderness - Hoosier National Forest - Monroe County, IN

Macrolepiota procera

Macrolepiota procera

9/13/12 - Brown County State Park - Nashville, IN

 

Other Sightings:

9/20/12 - Morgan Monroe State Forest - Morgan County, IN
9/27/12 - Griffey Woods - Bloomington, IN