When: 2012-05-25

Collection location: Lafayette, Louisiana, USA [Click for map]

Who: kademan100

No specimen available

These mushrooms were found at the plant nursery at which I work. They were all found growing out of the soil, which I know to be fertilized with organic fertilizer (containing wood chips, manure, ashes, etc.), and inside of cups in which flowers were planted. Growing in full shade. Caps are convex, anywhere from 1-3 cm across. Caps are light brown – tan around lip and directly on top or a brown color. Gills are a tan color on small mushrooms and black on mature mushrooms. Stem is a very shiny brown color, ranging from dark brown at base to very light brown – tan near cap. Stem is about 5-6 cm long on mature. Not much of any smell at all. Mushrooms bruise a dark brown color. Trying to figure out this particular species.


Stems and caps.
Adult gills.
Adult cap.
Young mushrooms gills.

Proposed Names

28% (1)
Recognized by sight: The species concept of Agaricus (Panaeolus) cinctulus is based on a drawing made by Bolton in 1791. No type collection exists. Since it is not possible to know whether Bolton’s species was Panaeolus subbalteatus, P. olivaceus or P. fimicola, I consider Panaeolus cinctulus to be a nomen dubium.
Based on microscopic features: The gill faces need to be checked for sulphidia; the presence of these would indicate that it is probably Panaeolus fimicola.

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