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

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2.11

Strophilaria
(Stropharia ... Psilocybe ... Naetoloma)

 

Does it have a persistent superior ring?

Yes

Does it grow on grass or humus? .............  ..................

Yes

Does it grow on wood? ........................ ..............     .............

Yes

 

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You have a member of the
Stropharia
family

Click to continue

 

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Is the cap bright green, viscid? ................     ....... .    .................

Yes

Is the cap not bright green or straw-yellow; it does not grow on dung?

Yes

Is the cap straw-yellow, viscid; grows on dung? ....................... ...................

Yes

 

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Is the cap deep maroon-red, with or without scales?

Yes

Is the cap cinnamon-gray, brown to tan? .................

Yes

 

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Are yellow patches on the surface of unopened veil?

Yes

Is the cap cinnamon-red with scattered buff hairs?

Yes

 

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You have an S. rugosoannulate

 

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You have an S. aeruginosa

 

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You have an S. squamosa
(var. thrausta)

 

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You have an S. semiglobata

 

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Is the stalk .3" - 1" thick, with or without cottony scales?

Yes

Is the stalk tall and thin?  ...............   .................

Yes

 

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Are there few to no scales on the stalk; ring fragile and soon disappears?

Yes

Are there dense cottony scales on stalk; persistent skirt-like ring?

Yes

 

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You have an S. ambigua

 

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You have an S. hornemanni

 

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You have a member of the
Psliocybe
family

Click to continue

 

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Does the stalk bruise blue? ...............

Yes

Does the stalk not bruise blue?

Yes

 

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Does it grow on dung, especially horse dung? ......................

Yes

Does it grow on moss, usually at high elevations?

Yes

 

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You have a P. coprophila

 

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You have a P. montana

 

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Is the ring membranous and persistent?

Yes

Is the ring absent or leaving a thin zone?

Yes

 

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You have a P. cubensis

 

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You have a P. caerulipes

 

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You have a member of the
Naematoloma
family

Click to continue

 

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Is the cap convex; stalk >0.2"; grows in cespitose clusters?

Yes

Is the cap conic; stalk thin; grows singularly to numerous, but not in cespitose clusters?

Yes

 

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Are the gills yellow with a greenish hue; the cap brick red to citron?  ...........       ............................

Yes

Are the gills white then gray then purple-brown; cap orange to cinnamon, usually on conifers?

Yes

 

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Is the cap brick-red; gills sometimes tinted olive; grows on hardwood stumps and logs?

Yes

Is the cap citron to orange-yellow; gills conspicuously green?

Yes

 

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You have an N. sublateritium

 

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You have an N. capnoides

 

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You have an N. fasciculare

 

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You have an N. dispersum or nudum

 

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