Observation 93427: Parasola hercules (Uljé & Bas) Redhead, Vilgalys & Hopple
When: 2012-04-21
Who: zaca
No herbarium specimen

Proposed Names

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Thanks for the reply
By: Byrain
2012-08-23 16:25:02 PDT (-0700)

Between the the widely spaced gills, pale pileus, large/wide spores, I think this is P. hercules. Your find also corresponds with the details in Flora Agaricina Neerlandica vol 6 rather well.

Hello Byrain, Thanks for your questions.
By: zaca
2012-08-17 14:33:19 PDT (-0700)

The speciemns grew from soil and no dung was arround.
starting with the dimensions of the expanded pileus, the biggest specimen has 17 mm (precisely the maximum indicated at Kees Uljé Coprinus site for this species). Regarding the excentricity of the germ pore, I’m positive and all my observations pointed to that.
Now, here are some details about the dimensions of the spores: I made three different preparations to observe the spores, one for each specimen, and they are a bit different, but all with sufficiently long spores to rule out most of the species in the group:

Prep. 1:
(13) 14.7 – 17.4 (17.8) x (11.5) 12.9 – 14.9 (15.8) µm

Q = (1) 1.1 – 1.26 (1.3) ; N = 40

Me = 16.1 × 13.8 µm ; Qe = 1.2

Prep. 2:
(12.3) 13.3 – 15.5 (16.1) x (9.2) 11.7 – 13.6 (14.3) µm
Q = (1) 1.1 – 1.2 (1.4) ; N = 77
Me = 14.3 × 12.6 µm ; Qe = 1.1

Prep. 3:
(14.6) 15.3 – 18.2 (18.7) x (11.4) 13.5 – 15.2 (16.2) µm
Q = 1.1 – 1.2 (1.5) ; N = 42
Me = 16.9 × 14.4 µm ; Qe = 1.2.

I also made some measurements on the cystidia and obtained the following values:
(26.4) 29.6 – 55.9 (64.4) x (14.2) 15.6 – 26.7 (34.1) µm
Q = (1.1) 1.3 – 3 (3.3) ; N = 45
Me = 40.5 × 20.8 µm ; Qe = 2.

Finally, I discussed this observation with Europe-coprinologist in another forum and his opinion also pointed to Parasola hercules. This idetification could not be cabal due to the limitations of my equipment but still think I did what I could do.

Questions
By: Byrain
2012-08-16 16:57:43 PDT (-0700)

What was the size of the expanded pileus? Do you have the spore range? And its safe to assume the germ pore was eccentric?
I think your only other choice is P. schroeteri with a larger & seemingly differently colored pileus, more crowded gills, and somewhat narrower spores. I’m not sure how useful the spore size is alone. P. schroeteri is also supposed to prefer dung, but as you can see with my observations, that doesn’t always seem to be the case.

Created: 2012-04-27 13:24:41 PDT (-0700)
Last modified: 2012-08-23 16:25:11 PDT (-0700)
Viewed: 133 times, last viewed: 2016-10-27 19:20:38 PDT (-0700)
Show Log