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A user-friendly point-and-click key to the
 M
ushrooms of North America
(Copyrightę1998-2003 Edward J. Polasek)

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Key 2
Key 3
Key 4
Key 5
Key 6
Key 7
Key 8
Key 9
Key 10

 

Key 7

Gastromycetes
(Bird's nest, earth stars, puffballs, and stinkhorms)

 

Does the fruiting body resemble a miniature bird's nest? Yes
Is the fruiting body star-shaped? Yes
Is the fruiting body round, pear-shaped, or on a stalk? Yes
Is the fruiting body covered over the tip with slime, odor very disagreeable; rising from tough, fleshy egg? Yes

 

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Is the interior shiny striate; drab to nearly black eggs?

Yes

Are the interior walls not striate; eggs white?

Yes

 

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You have a Cyathus striatus

 

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You have a Crucibulum vulgare

 

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Are the rays open when wet, closed when dry; inner spore sac hairy?

Yes

Do the rays remain open; inner spores sac smooth?

Yes

 

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Does the spore sac have many holes?

Yes

Does the spore sac have one hole at the top?

Yes

 

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You have a Myriostoma coliforme

 

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You have a Astreus hygrometricus

 

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Is the inner spore sac on a short stalk?

Yes

The inner spore sac is not stalked? ...........................

Yes

 

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You have a Geastrum coronatum

 

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Is the sore sac seated in a "bowl"; inner surface of ray cracked? ..............................

Yes

 Is the spore sac exposed but sessile; inner surface of ray smooth?

Yes

 

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You have a Geastrum triplex

 

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You have a Geastrum saccatum

 

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Copyrightę1998-2003 Edward J. Polasek
All Rights Reserved