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Bernard CLESSE
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Does Coprotus subcylindrosporus exist?
Maria Plekkenpol,
16-04-2023 10:19
Hello,On cowdung I found a Coprotus last week. The Fb's are more yellowish than the Coprotus leucopocillum I found in 2020. In "An updated key to COPROPHILOUS PEZIZALES AND
THELEBOLALES IN ITALY"(Doveri) the spore size is larger (longer and broader) than mine, but in "Coprotus (Thelebolaceae, Thelebolales) in herbivore dung from Brazil" (Melo et al, 2015) the spore size of C. leucopocillum does fit my find (15,2-16,5 x 8,2-9). Taking everything in consideration I lean towards C. leucopocillum now.
I was just wondering: in the Doveri key he mentions C. subcylindrosporus. Does that species indeed exist?? I find very very little about it? There are some features that fit this species more.
Thanks for the help!
François Valade,
16-04-2023 11:13
Re : Does Coprotus subcylindrosporus exist?
Maria, read Moravec 1971
then Svrcek who combined it in Ascophanus http://www.czechmycology.org/_cm/CM351.pdf
Maria Plekkenpol,
16-04-2023 13:06
Re : Does Coprotus subcylindrosporus exist?
Hi Francois, thank you for the links!
It is a bit difficult for me to understand, but if I understand you correctly this species does exist, but as Ascophanus subcylindrosporus?
And if that is the case, do you happen to know if there are clear differences between C. leucopocillum and A. subcylindropsporus?
I hope I don't ask too much :)
It is a bit difficult for me to understand, but if I understand you correctly this species does exist, but as Ascophanus subcylindrosporus?
And if that is the case, do you happen to know if there are clear differences between C. leucopocillum and A. subcylindropsporus?
I hope I don't ask too much :)
Norbert Heine,
16-04-2023 16:00
Re : Does Coprotus subcylindrosporus exist?
Hello Maria,
maybe your Coprotus is Coprotus ochraceus. This species is very close to C. leucopocillum but with yellowish coloured apothecia. C. subcylindrosporus should have paraphyses which are apically swollen until 8 µm. At C. leucopocillum and ochraceus the paraphyses are not so much inflated, only until 5 µm.
In my opinion C. subcylindrosporus is a good species, also accepted by Kusan et al, MycoKeys 29, 2018.
Norbert
Maria Plekkenpol,
16-04-2023 18:52
Re : Does Coprotus subcylindrosporus exist?
Hi Norbert,
Thank you! The apex of my paraphyses are indeed max 6 µ broad, so C. subcylindrosporus it is not!
C. ochraceus was also my first thought, but there are some characteristics that, I think, point towards C. leucopocillum:
the size of the apothecia (mine max 0,4 mm), the size of the asci (mine smaller than C. ochraceus) and both Doveri as Melo give the same width of the spores of C. ochraceus ( between 10-12), whereas Melo speaks of 8,5-10 concerning C. leucopocillum. That is why (for a moment) I thought of C. subcylindrosporus (Doveri), because of the smaller Fb's, the smaller asci and the smaller (width) of the spores. My spores are less broad (8,2-9).
Thank you both very much for your help, I learned a lot from it!
Greetings, Maria
Thank you! The apex of my paraphyses are indeed max 6 µ broad, so C. subcylindrosporus it is not!
C. ochraceus was also my first thought, but there are some characteristics that, I think, point towards C. leucopocillum:
the size of the apothecia (mine max 0,4 mm), the size of the asci (mine smaller than C. ochraceus) and both Doveri as Melo give the same width of the spores of C. ochraceus ( between 10-12), whereas Melo speaks of 8,5-10 concerning C. leucopocillum. That is why (for a moment) I thought of C. subcylindrosporus (Doveri), because of the smaller Fb's, the smaller asci and the smaller (width) of the spores. My spores are less broad (8,2-9).
Thank you both very much for your help, I learned a lot from it!
Greetings, Maria