Observation 269540: Coprinopsis tuberosa

When: 2017-02-08

Collection location: Parque de Monsanto, Lisboa, Portugal [Click for map]

Who: zaca

No specimen available

If in my first observation of this species, Observation 264099: Coprinopsis tuberosa, the sclerotia formation at the base of the stem was inconspicuous, this time was much bigger. I saw a group of three mushrooms standing together without apparent connection; removing the substracta (dung, possibly of a dog) from their bases I could see black formations – sclerotia – that after cutted revealed a pure white inside. Unfortunately all these happened at home with a poor lighting conditions, since in the field I could not take the desirable photos due to a lack of batteries, and the corresponding photos are miserable (Photo 1, is from that time).; The day after I took some photos of the sclerotia and of the specimens (Photo set 2). In spite of having conserved the mushrooms in the fridge, there was no developement of the specimens and the microscopy failed; only the veil could be well observed and no mature spores. However, I think that it is enough for the identification, since the sclerotia is fairly distinctive.


A specimen that became mature (better, overmature) after 3 days in the fridge;
Photo 1: The three speciemens together as first observed;
Phot set 2: Sclerotium (at center, after cutted) and specimens around (the bigger specimen is at the top photos);
Microscopy: The veil cells (in water);
Microscopy: Immature spores (in cresyl blue).
Microscopy: Spores of the mature specimen (x 1000, in water).

Proposed Names

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New data added!
By: zaca
2017-02-12 00:42:31 CET (+0100)

I almost forgot the specimen left in the frigde for 3 days. I uploaded photos of it and of its spores.