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Coprinopsis possibilmente macrocephala

MessaggioInviato: sab 7 gen 2017, 19:16
da Darniella
Salve... Ho trovato un Coprinus s.l. e penzo che gli ho identificata bene come Coprinopsis macrocephala

Radice assente
Velo composto da ife cylindici non ramificanti
Pileipellis cutis da ife rectangolari
Basidia 4-sporate
Spore (12.6)14.6(-16.6)um, ellitice, poro germinativo distinto
su manure

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: sab 7 gen 2017, 19:19
da Darniella
Altre foto

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: sab 7 gen 2017, 19:21
da Darniella
Pileipellis e hymenium con basidia e Cheilocystidia (confermate che sono Cheilo? )

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: sab 7 gen 2017, 19:23
da Darniella
Altre Cheilocystidia (?) e spore

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: dom 8 gen 2017, 20:39
da Andreas Melzer
Hello Darniella,
this can be macroceophalus, but does not have to. C. radiata can also become really huge. How wide were the spores? Up to 8,5 µm: radiata; broader, up to 10 µm: macrocephala.
All the best,
Andreas

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: mar 17 gen 2017, 21:15
da Darniella
Hi, Sorry I was very busy the entire week. The spores measure 6.9-8.5 wide (average 7.7), but although I'm not an expert, I am finding it hard to assign it to C. radiata since in the descriptions I've read, the species is minute, with a pileus up to 15mm (usually 10mm). This specimen was 4cm high and the hat 2.0-2.5cm wide. C. macrocephala spores are given as 7.5-8.5 (-10um).


A bit tricky Andreas - do you still retain C. radiata is a better taxon for this finding ? I attach some more images




http://www.grzyby.pl/coprinus-site-Kees ... diatus.htm


http://www.mycoquebec.org/bas.php?trie= ... ala&gro=33

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: mer 18 gen 2017, 21:12
da Andreas Melzer
Hello Darniella,
I believe there is no secure feature to distinguish radiata/macrocephala (ecept sequencing). Spore dimensions and shapes overlap.
And also the size of mushrooms. I have grown on elephant dung radiata, tiny to large mushrooms (stipe up to 150 mm, cap up to 35 mm broad) mixed. In case of doubt, I plead for radiata.
All the best,
Andreas

http://www.vielepilze.de/coprinus/ecoprinus.html

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: ven 20 gen 2017, 17:18
da Darniella
Andreas, hope you fine.

So I went to the same population early morning, the dung was still there and I could gather more data.

I have measured the diameter of the pileus of all the specimens present and these are the results in mm:
14,13,28, 15,11,30, 7,12,35,20,37,21,12,13,32,18,15,30,10. Range : 7mm-37mm.


Then I took 3 specimens: 1. young and small, pileus still conical, 2. the largest pileus (mature, 37mm wide) and 3. a an avergae-sized specimen (mature, 18mm wide) and for each I checked the spores sizes.

I got these results:

[1] Small specimen (L x W):
11.77 7.11
13.88 8.40
11.72 7.39
13.08 7.12
12.75 7.79
12.47 7.51
10.77 6.90
10.71 6.72
12.45 6.59
11.90 6.63
12.15 7.29
11.42 7.33
11.78 7.23
11.95 7.47
11.72 6.83
13.40 7.27
11.26 6.71

(10.7) 11.3 - 13.1 (13.9) × (6.6) 6.7 - 7.5 (8.4) µm
Q = 1.6 - 1.8 (1.9) ; N = 17
Me = 12.1 × 7.2 µm ; Qe = 1.7

3.Mature, average sized specimen, 18mm (L x W)

17.07 8.63
13.63 7.84
12.40 7.74
15.16 8.15
12.43 7.45
13.98 7.85
14.58 7.92
14.83 8.44
12.94 7.40
14.59 8.27
14.87 7.68
12.96 7.58
15.75 8.53


(12.4) 12.43 - 15.7 (17.1) × (7.4) 7.45 - 8.5 (8.6) µm
Q = (1.6) 1.7 - 1.9 (2) ; N = 13
Me = 14.2 × 8 µm ; Qe = 1.8

2. Mature and largest specimen, (37mm ( L x W )

13.54 8.30
16.02 8.01
15.81 8.62
15.17 7.99
14.61 7.82
13.95 7.73
14.90 7.88
14.11 8.10
15.57 8.72
14.87 8.85
16.03 8.41
13.12 7.40
14.07 7.69
16.26 8.27
15.63 8.65
11.90 8.91
16.02 8.41
11.69 8.23
14.14 8.25


(11.7) 13.1 - 16 (16.8) × (7.4) 7.7 - 8.7 (8.9) µm
Q = (1.3) 1.6 - 1.9 (2) ; N = 19
Me = 14.6 × 8.2 µm ; Qe = 1.8

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: ven 20 gen 2017, 17:26
da Darniella
Population and size images

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: ven 20 gen 2017, 17:28
da Darniella
Mesurment of pileus

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: ven 20 gen 2017, 18:10
da Darniella
I remember very well that the spore data of my first report was from a young specimen, which I chose so that until I arrive home, I can still work on it. I am surprised that there is a discrepancy in spore size between young and fully mature specimens, at least in coprinopsis.

I think now C. macrocephala is most suitable name for this beautiful population.

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: sab 21 gen 2017, 12:00
da Andreas Melzer
Hello Darniella,
what an extensive work!
I think you can with good conscience call the find macrocephala.
All the best,
Andreas

Re: Coprinopsis possibilmente macrocephala

MessaggioInviato: sab 21 gen 2017, 20:54
da Darniella
Thank you Andreas - my coscience is more happy after your comment! And apologies to the readers for the number of typing mistakes in the last two posts - I was in super haste. Now I edited and corrected all mistakes.

Another one solved