According to Stamets (1996): Psilocybin mushrooms of the world (used for the ID of these collections):

Psilocybe pelliculosa (this MO Observation # 86599) has cheilocystidia fusiform to lance-shaped, with an elongated neck;
Psilocybe cyanofibrillosa (MO Observation # 72945) has chelocystidia fusiform to lanceolate, with an elongated, forking neck.

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No, it does not make sense
By: Oluna & Adolf Ceska (
2012-01-21 15:25:11 MST (-0700)

The MO habit to put authority names behind “[Genus] sp.” indeed does not make any sense: Cf. Psilocybe sp. (Fr.) P. Kumm. (72945).

Does “Adolf” make sense?
By: Irene Andersson (irenea)
2012-01-21 09:13:16 MST (-0700)

The author is only important when we are talking nomenclature, to decide which species that should be regarded the type species of the genus – no big deal :-)

To add the authority behind the genus does not make sense
By: Oluna & Adolf Ceska (
2012-01-21 08:46:45 MST (-0700)