A user-friendly point-and-click key to the
 M
ushrooms of North America
(Copyright©1998-2003 Edward J. Polasek)

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Key 2.5

Lactarius

 

Is the fruiting body white; the fruiting body 1-1/2" - 5" broad; the latex white and remaining white?

Yes

Is the fruiting body colored; white or colored? ..............................       ............................

Yes      

 

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Are the gills crowded?...............      .......      .............

Yes

Are the gills distant, not forked, and the cap finely wooly?

Yes

 

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You have an L. piperatus

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is the margin of cap without a cottony roll?

Yes

Does the margin of cap have a cottony roll?

Yes

 

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You have an L. vellereus

 

Top

 

 

 

 

 

 

 

 

 

 

 

You have an L. deceptivus

 

Top

 

 

 

 

 

 

 

 

 

 

 

Is the latex colored?  ..........       ...............   ......................    ..........    ......................

Yes

Is the latex white and unchanging or quickly changing to yellow, sometimes staining?

Yes

 

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Is the latex blue or does the flesh bruise to blue?

Yes

Is the latex orange, leaving green stains? ............

Yes

Is the latex red, leaving red stains? .........    ............

Yes

 

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You have an L. indigo

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

You have an L. deliciosus

 

Top

 

 

 

 

 

 

 

 

 

 

 

You have an L. sanguifluus

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

Is the latex white, not staining gills or flesh?  ..................    .........    ..................

Yes

Is the latex white, but soon staining to rose, brown, or lilac, or quickly changing to yellow?

Yes

 

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Are the cap and stalk olive-brown; the stalk spotted?

Yes

Are the cap and stalk a color other than olive or green?

Yes

 

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You have an L. necator

 

Top

 

 

 

 

 

 

 

 

 

 

 

Is the cap moist to dry?

Yes

Is the cap viscid or matted hairy?

Yes

 

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Is the cap .03" - 1.2"and gray to pinkish gray? 

Yes

Is the cap larger and not gray to pinkish gray?

Yes

 

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You have an L. grisius

 

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Is the cap glabrous, zonate, orange with a smooth margin? ..................... .....     .....     .....     ........

Yes

Is the cap glabrous only in the center, yellow-buff, with densely matted hair at the margin?

Yes

Is the cap azonate, brown, never hairy?.....     .....     .....     ..........     .....     .....     .....     ..........

Yes

 

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You have an L. zonarius

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

You have an L. torminosus

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

You have an L. affinis

 

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Copyright©1998-2003 Edward J. Polasek
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