File:  <plate232.htm>

 

KEY TO GENERA OF THE AGARICACEAE

 

CLICK on spore color:  <White>   <Rosy>   <Ocher>   <Yellow>   <Brown>   <Purple-brown >   <Black>

 

White-Spored Genera

 

Fungi soft or generally fleshy, soon decaying and not reviving well when moistened:

 

  Ring or volva or both present

      Volva and ring both present ----------------------------------------------------------------------------------------------------------------- Amanita

      Volva present, ring absent --------------------------------------------------------------------------------------------------------------- Amanitopsis

      Volva absent, ring present

        Gills free from stem --------------------------------------------------------------------------------------------------------------------------- Lepiota

        Gills attached to the stem ----------------------------------------------------------------------------------------------------------------- Amillaria

  Ring and volva both absent

      Stem excentric or lateral ---------------------------------------------------------------------------------------------------------------------- Pleurotes

        Gills decurrent

          Edge blunt, foldlike, forked ---------------------------------------------------------------------------------------------------------- Cantharellus

          Edge thin, stem fibrous outside ---------------------------------------------------------------------------------------------------------- Clitocybe

          Edge thin, stem cartilaginous outside -------------------------------------------------------------------------------------------------- Omphalia

        Gills sinuate, general structure fleshy ------------------------------------------------------------------------------------------------- Tricholoma

        Gills adnate or adnexed

          Cap rather fleshy, margin incurved when young --------------------------------------------------------------------------------------- Collybia

          Cap thin, margin of cap at first straight, mostly bell-shaped -------------------------------------------------------------------------- Mycena

          Cap fleshy, gills very rigid and brittle, stem stout

            Milk present ------------------------------------------------------------------------------------------------------------------------------ Lactarius

            Milk absent --------------------------------------------------------------------------------------------------------------------------------- Russula

        Gills various, often decurrent, adnate or only adnexed, edge thin, thick at junction of cap, usually distant, waxy. -------Hygrophorus

 

Fungi coriaceous, tough, fleshy or membraneous, reviving when moistened

  Stem generally central, substance of cap noncintinuous with that of stem, gills thin, often connected by veins or ridges ------ Marasmius

  Stem central, excentric, lateral, or absent, substance of cap continuous with that of stem

    Edge of gills toothed or serrate ---------------------------------------------------------------------------------------------------------------- Lentinus

    Edge of gills not toothed or serrate -------------------------------------------------------------------------------------------------------------- Panus

    Edge of gills split into two laminae and revolute ----------------------------------------------------------------------------------- Schizophyllum

Fungi corky or woody, gills radiating ------------------------------------------------------------------------------------------------------------ Lenzites

 

Rosy-Spored Genera

 

Stem excentric or absent and pilous lateral -------------------------------------------------------------------------------------------------- Claudopus

Stem central

  Volva present, annulus wanting ---------------------------------------------------------------------------------------------------------------- Volvaria

  Volva and annulus absent

    Cap easily separating from stem, gills free --------------------------------------------------------------------------------------------------- Pluteus

    Cap confluent with stem, gills sinuate ----------------------------------------------------------------------------------------------------- Entoloma

 

Ocher-Spored Genera (Spores Yellow or Brown)

 

Gills easily separable from flesh of cap

  Margin of cap incurved, gills somewhat decurrent forked or connected with veinlike reticulations ---------------------------------- Paxillus

Gills not easily separable from flesh of cap

  Universal veil present, arachnoid ----------------------------------------------------------------------------------------------------------- Cortinarius

  Universal veil absent

    Ring present ------------------------------------------------------------------------------------------------------------------------------------- Pholiota

    Ring absent

      Stem central

        Cap turned in -------------------------------------------------------------------------------------------------------------------------------- Naucoria

        Cap not turned in ------------------------------------------------------------------------------------------------------------------------------ Galera

      Stem excentric or none --------------------------------------------------------------------------------------------------------------------- Crepidotus

 

Purple-Brown Spored Genera

 

Cap easily separating from stem, gills usually free ------------------------------------------------------------------------------------------- Agaricus

Cap not easily separating from stem, gills attached

  Ring present ------------------------------------------------------------------------------------------------------------------------------------ Stropharia

  Ring absent, veil remaining attached to margin of cap ----------------------------------------------------------------------------------- Hypholoma

 

Black-Spored Genera

 

Gills deliquescing, cap thin, ring present in some species ---------------------------------------------------------------------------------- Coprinus

Gills not deliquescing

  Margin of cap striate, gills not variegated ------------------------------------------------------------------------------------------------- Psathyrella

  Margin of cap not striate, gills variegated -------------------------------------------------------------------------------------------------- Panaeolus