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Coprinellus disseminatus
Coprinellus radians
Coprinellus saccharinus
Coprinellus saccharinus
Coprinellus sp.
Coprinopsis atramentaria
Coprinopsis lotinae
Coprinopsis pannucioides
Coprinopsis xantholepis
Parasola conopilus
Parasola lactea = Parasola leiocephala
Parasola schoeteri
Psathyrella bivelata
Psathyrella candolleana
Psathyrella candolleana
Psathyrella cf. dicrani
Psathyrella dicrani
Psathyrella melanthina
Psathyrella senex
Psathyrella sp.
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The Psathyrellaceae is a family of small to medium sized, fragile, dark-spored agarics. Previously many of the species were classified in the family Coprinaceae, but recent DNA based phylogenetic research have shown Coprinus (the ink caps) to be polyphyletic and the genus has been split into 4 genera: Coprinus s.s. (which is now classified under Agaricaceae), Coprinellus, Coprinopsis and Parasola. Members of these genera (but not all) undergo partial to total auto-digestion, where the cap 'dissolves' and releases drops of black liquid (hence ink caps).
The family includes
Psathyrella, which is also considered to be polyphyletic (but no revision has been done yet) and Lacrymaria. Spores of Psathyrellaceae are generally black to very dark brown and rarely red. The colour is bleached by sulphuric acid and this is a diagnostic test to separate from Panaeolus. The spores normally have a germ pore. In Psathyrella the stipe is very fragile often breaking on handling. The cap is also very fragile, often fragmenting into several pieces. Members of Coprinellus and Parasola often have short lifetimes, usually a few hours. Identification of a Psathyrellaceae is often difficult and microscopic examination is required.
Psathyrellaceae
Representative species
Coprinopsis
Parasola
Psathyrella
Coprinellus
Coprinellus disseminatus
Coprinellus radians
Coprinellus saccharinus
Coprinopsis atramentaria
Parasola lactea
Parasola schroeteri
Psathyrella candolleana
Parasola conopilus
Psathyrella bivelata
Psathyrella cf. dicrani
Psathyrella sp. (CS117)
Coprinellus sp.1 (CS9)
Coprinellus saccharinus
Coprinopsis pannucioides
References: Psathyrellaceae - Zipcodezoo
Psathyrella cf. dicrani 2
Coprinus s.l. - Kees Uljé mirror site/ Hans Bender's site (German)
Psathyrella - Andreas Melzer website
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Coprinopsis lotinae
Psathyrella bivelata 2
Psathyrella melanthina
Psathyrella candolleana 2
Psathyrella senex
Coprinopsis xantholepis