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24-05-2025 12:30

Karen Poulsen

Hello, I found this on straw in water at lake sho

24-05-2025 12:06

Karen Poulsen

Hello, I found these Coelomycetes among several

21-05-2025 17:28

éric ROMERO éric ROMERO

Bonjour Tous, Avec la bonne fiche cette fois (mer

23-05-2025 13:38

Andgelo Mombert Andgelo Mombert

Dear all, I'm looking for material from the USA of

23-05-2025 09:48

Josep Torres Josep Torres

Hello.A probable Diplodia located on a small Pista

22-05-2025 08:55

Josep Torres Josep Torres

Hello.A Pezizal sprouting scattered in small group

22-05-2025 17:17

Per Marstad Per Marstad

I have found this on Alnus glutinosa. Growing unde

19-05-2025 09:42

Josep Torres Josep Torres

Hello.An ascomycete photographed on April 20, spro

20-05-2025 09:37

Josep Torres Josep Torres

Hello, an anamorph photographed last April 20th, s

20-05-2025 21:36

Francois Guay Francois Guay

I found this Mollisia sp. on a submerged herbaceou

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on populus
peter peperkamp, 24-10-2012 21:16
this asco on twigs, Asci slightly J+ and operculate.
spores 14.5 -16.4 long,  looks a little warthy within the ascus but it appears to be little drops  of oil, further the spores contain 2 big droplets of oil.
who has a suggestion ?

Peter
  • message #20138
  • message #20138
  • message #20138
Chris Yeates, 24-10-2012 21:25
Chris Yeates
Re : on populus
Hello Peter
are they really operculate? this reminds me of Lanzia (Rutstroemia) luteovirescens

Chris
peter peperkamp, 24-10-2012 23:32
Re : on populus
yep , hard to see but Ill ad a pic of ascus tip..
  • message #20150
Chris Yeates, 24-10-2012 23:53
Chris Yeates
Re : on populus
that makes it inoperculate - an operculum is (generally) a lid which lifts off to form an opening - not a pore opening such as one can see (stained) here . . .

see http://website.nbm-mnb.ca/mycologywebpages/NaturalHistoryOfFungi/DiscomycetesDiscussion.html

regards
Chris
Hans-Otto Baral, 25-10-2012 09:38
Hans-Otto Baral
Re : on populus
Yes, Rutstroemia luteovirescens is most probable (also Martin Bemmann gave me that idea). But the substrate should then be petioles of Acer.

Zotto
peter peperkamp, 25-10-2012 18:03
Re : on populus
oef.... did I go wrong with that ,,, And I draw the right example on the first page of my E & E.. so I wont forget !!!!   
And  I found it on a grassy site in a little park with large Populus , but Acer stood there to a little further away, so it could be Acer as wel ...