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21-11-2012 19:28

Salvador Tello

Hola.Antes de nada me presento, ya que es la prime

24-10-2012 04:11

M Jonathan M Jonathan

sur bois pourri, j'ai cru un lasiosphaeria mais le

06-05-2012 23:34

Martin Bemmann Martin Bemmann

In my garden two shrubs of Hibiscus (15 to 20 year

20-11-2012 12:54

Malcolm  Greaves Malcolm Greaves

Hi allCan anyone confirm that this is L macrotichu

18-11-2012 19:29

Enrique Rubio Enrique Rubio

Dear friends:have you some idea for this gregariou

19-11-2012 23:43

Edit Szilvásy Edit Szilvásy

Hi all!I bring these specimens asking for your hel

20-11-2012 01:06

Esquivel-Rios Eduardo

Hy All.I found this yellow-orange Hypocrea in a d

19-11-2012 23:30

Edit Szilvásy Edit Szilvásy

Hi all! I bring these specimens asking for your h

02-11-2012 21:23

Michel Hairaud Michel Hairaud

BonsoirHi to all, Cette espèce récoltée sur feu

19-11-2012 17:09

Luc Bailly Luc Bailly

Bonjour à tous,Lac des Rouges Truites, Jura, 2.10

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Scutellinia scutellata?
Christopher Engelhardt, 09-10-2016 17:56
Christopher EngelhardtAware that Scutellinia scutellata is probably a whole species group, I wonder whether something more can be said about this Asco that I found today in N Germany on lying dead poplar wood, mostly on the cut edge between mosses.
Fruitbody ~5 mm, hairs dark brownish, mostly 400-750 µm long, up to 16x septate, ending sharply pointed.
Asci mostly rounded at the end, 200-260 µm long, about 20 µm in diameter.
Spores with many small oil drops, smooth, seemingly double-walled, 15-17 x 22-23 µm.
Paraphyses 3-4 µm wide, at the end widening up to 9 µm.
Scutellinia scutellata?
Thanks & best wishes  Chris
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Michel Delpont, 09-10-2016 18:38
Michel Delpont
Re : Scutellinia scutellata?
Hello Christopher

Could you make a preparation of spores in the blue cotton outside Asci ?

Michel.
Christopher Engelhardt, 09-10-2016 19:24
Christopher Engelhardt
Re : Scutellinia scutellata?
spores in cotton blue.... hope it helps!?
Thanx

Chris
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Malcolm Greaves, 09-10-2016 21:10
Malcolm  Greaves
Re : Scutellinia scutellata?
Hello Christopher
The spore shape/size and ornamentation and the hair length/septa/root and being flexous all fit very well with S olivascens for me.
Mal
Michel Delpont, 09-10-2016 21:34
Michel Delpont
Re : Scutellinia scutellata?
Good evening and Christopher Malcolm

Malcolm was faster than me to answer; I was in the moment to hesitate between S.olivascens and S.kerguelensis, but I'd rather S.kerguelensis over ornamentation and form spores that seems closer to me. But as often with this kind it is sometimes difficult to decide.


Michel.

Malcolm Greaves, 10-10-2016 01:10
Malcolm  Greaves
Re : Scutellinia scutellata?
Michel
I did look at S kerguelensis. The spore ornamantation looks small as you would expect for the species but I felt the hairs especially the roots looked a better fit for S olivascens. Beñat has S k as having hairs 130-480 but with so many similarities between the species so I couldn't argue strongly agains S kerguelensis.
Mal
Michel Delpont, 10-10-2016 09:39
Michel Delpont
Re : Scutellinia scutellata?
OK! Thank you Malcolm.
Michel.
Christopher Engelhardt, 10-10-2016 10:24
Christopher Engelhardt
Re : Scutellinia scutellata?
Thanks Malcolm and Michel, for this interesting discussion.
After this discussion and further research I'd go for olivascens, the main rerason being the hairs and their roots. In olivascens the hairs are longer than in kerguelensis, some of them s-shaped (not so in kerguelensis) and mostly bifurcate (in kerguelensis only one third so), multiple-septate (in kerguelensis only sparsely septate).
An interesting description of S. olivascens in German language I found in
http://www.pilzforum.eu/board/thema-scutellinia-olivascens--29656
which fits very well to my collection.
So thanks again and best wishes
Chris