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31-10-2024 22:25

Small 'lights' on Betula leaves, Denmark
Karen Poulsen

Hello, On half weathered Betula leaf, I noticed t

31-10-2024 21:42

Dusty pink conidiomata on old pine needles, Denmark
Karen Poulsen

Hello, On last year's pine needles on the ground

31-10-2024 04:07

Amicodisca sp. ?
Francois Guay Francois Guay

Last week, I found what appears to be an Amicodisc

28-10-2024 17:51

Hymenoscyphus s.s. on various herbaceous stems
B Shelbourne B Shelbourne

• Macro and habitat suggest Hymenoscyphus s.l.,

24-10-2024 23:07

Otidea
Patrice TANCHAUD

Bonsoir, récolte réalisée sous hêtres et chê

28-10-2024 23:30

Small Scutellinia on wood
Marc Detollenaere Marc Detollenaere

Dear Forum,I found some small fruit bodies of abou

24-10-2024 14:39

Xylariales sp
Jean-Luc Ranger

Bonjour à tous,Découvert sur un terrain calcaire

23-10-2024 17:27

Hyalopeziza on Rhamnus
Enrique Rubio Enrique Rubio

Hi againThese tiny apothecia (100-200 µm) were gr

25-10-2024 02:15

Possible Allophylaria nervicola on leaves of Magnolia
B Shelbourne B Shelbourne

• Very few macro characters and I initially thou

26-10-2024 16:19

?Calycellina on Picea cone
Juuso Äikäs

Yesterday I found some small white Helotiales grow

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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 ...