29-03-2024 14:37
Michel HairaudBonjour , Voici une nouvelle récolte de cette be
29-03-2024 09:21
Michel HairaudBonjour, Je recherche la description du genre Mac
28-07-2011 18:31
Alex AkulovDear FriendsToday I made the pdf file of Velenovsk
25-03-2024 13:41
B Shelbourne• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a
25-03-2024 21:27
Riet van OostenHello, Found by Laurens van der Linde, March 2024
24-03-2024 08:27
Thierry BlondelleHiOn Hedera helix fallen branchEcological habitat:
26-03-2024 11:06
michel bertrandBonjour, Malgré de nombreuses recherches, je n'a
Looking for confirmation from Zotto if this is O. cejpii or something else.
Adam Polhorský helped me to id it, but he is not sure because of the margin.
https://inaturalist.org/observations/66551635
Thanks.
Paraphyses are still only slightly inflated. I believed the last photo was showing the margin and I uploaded a few more. There is something glassy on the margin, now it is the last picture. Unfortunately, I didn't observe conidia.
When I picked the bark from the ground I thought that it came from Populus, but I didn't see the tree, and now looking at the pictures with all those leaves it could be from Betula.
The one with the margin has very different microscopy and for now, I don't know what it is. (https://inaturalist.ca/observations/66676377).
Thanks
I don't do sequencing, but if someone interested I could mail it.
Very interesting, I'm ready to sequence this species.
Please send a few apos that were dried immediately after collection but are still on the substrate to my address:
Guy Marson
45 b, rue de Bettembourg
L-5810 Hesperange
Luxembourg
BTW: Our sequencer will not be operational again until mid-January 2021.
Best regards,
Guy
I'm going to mail it right after the holidays, to avoid delays.
In meanwhile I picked up a few more specimens just during this month of December 2020 from hikes around Ottawa, ON, Canada.
I'm an amateur, so I'm not really sure about my identifications. It would be nice to get confirmations or ids. Thanks.
#677D Orbilia trapeziformis-on Acer bark; https://inaturalist.ca/observations/66701857
#698 O. vinosa -likely on decorticated Betula log;
https://inaturalist.ca/observations/66893816
#696C Orbilia sp. -on Ulmus bark;
https://inaturalist.ca/observations/66973128
#699 O. subsphaerospora - on Acer bark;
https://inaturalist.ca/observations/66941554
#699B O. ovalis - on Acer bark;
https://inaturalist.ca/observations/66943810
#699C Hyalorbilia subfusispora -on Acer bark;
https://inaturalist.ca/observations/66945623
#701 O. caudata -unknown hardwood stick;
https://inaturalist.ca/observations/67054483
#701-O. caudata, I'm going to send the specimen to Guy Marson for sequence;
I don't think it was on Acer. Yesterday I took a walk and another look and I'm thinking it was from a dead Ulmus that had a big broken branch just hanging over that spot. Many trees are dead and all with the same bark, some of them have O. pilifera. I found on two of them that day. There are also Populus trees around that spot but no Acer.
.
#698 ?O.vinosa-It does look very similar to O. cf. vinosa. H.B.5518 from USA on Pinus strobus bark, but I'm sure it wasn't Pinus and it is very likely was a decorticated log of Betula. I saved a specimen if you want it for study. I always can include it with the other two.
#696C O. aurantiorubra- I've seen O.aurantiorubra last December and it had longer spores and more inflated paraphyses apexes. This looked a bit different. I'm pretty sure that it was on Ulmus, it was next to O. pilifera. I took another look today, and recheck spores. I found one very long 14.5x1.7um, the rest were below 11um. I also found conidia that fit O.aurantiorubra. I uploaded the pictures (the last pictures). https://inaturalist.ca/observations/66973128
Over a month earlier I also observed these three species, maybe you want to add them to your records:
#652 Orbilia ficicola
https://inaturalist.ca/observations/64129220
#606 Orbilia xanthoguttulata
https://inaturalist.ca/observations/62852705
#620B Hyalorbilia erythrostigma
https://inaturalist.ca/observations/63605196
Thanks again,
Igor
Could the stick be from Fraxinus? On that stick, I found what could be Hypoxylon fraxinophilum - (Ash Woodwart - https://inaturalist.ca/observations/67144897). I also did a section of the stick. I'm not sure if this helps. https://inaturalist.ca/photos/108525588
#698-O. cf. vinosa
I will ship this specimen too.
#652 -O.ficicola
I don't have a sample of wood, but I can get it and I will let you know if it is Ulmus or not
#606 Orbilia xanthoguttulata
I have a specimen. Do you want it?
In my case yes, the collection and the observation dates are the same. There are only exceptions for fungi on dung that I incubate, but I always mention it. At first, I submit pictures that I take on-site with my phone so they have GPS coordinates and the right time, even if I discover a fungus a few days later. I keep all specimens in a fridge before I study them, so I don't get new growth.
Best regards,
Igor
After your advice, I retried with just a razor.
https://photos.app.goo.gl/d6cW9KsRECsGzfZb6
It still wasn't thin enough for transmission light. I will need more practice.
Today, I went for a walk to get a stick from that tree with O. ficicola. It will be interesting to compare that wood with this and I found another Orbilia on a broken Acer twig in -10C. It will be my job for tomorrow.
I don't know the trees well enough. I thought that all dead trees in that small area were Ulmus, because I found O. pilifera, but it could be some are Fraxinus and some Ulmus. I know there is a young Fraxinus tree about few hundreds of meters north. I was looking for Hymenoscyphus on Fraxinus petioles this summer, but these are much older trees about 2 feet in diameter.
The branches could be from different trees, but I put an arrow to mark the right branch on the pictures.
Regards,
Igor
I found another that looks exactly like #698 (O. cf. vinosa), but this time I know the host was Populus.
#713 - O. cf. vinosa - https://inaturalist.ca/observations/67599062
I also found ?O. clavuliformis on a broken Acer branch.
#707 - https://inaturalist.ca/observations/67273521
I wanted to ask about my observation from Nov 2019. I couldn't id it. I kept a large specimen and I reexamined it and added a few more pictures. It was on the bark (Ulmus or Fraxinus), bright orange with a smooth margin, without glassy processes. I also found a lot of conidia on it this time. It would be nice to put a name on it.
#496 - https://inaturalist.ca/observations/35958367
Regards,
Igor
#707 O. clavuliformis on Acer branch. It is with opposite-branching.
I made a tangential section picture, but it looks too complicated for me.
https://inaturalist.ca/photos/109428064?size=large
#496 from Nov 2019
I've never made a connection that this could also be O. caudata. There were some things that didn't fit well and paraphysis shape was one of them.
I've never seen where it came from. I found a piece of bark on the ground covered with Orbilia. There were dead trees all around killed by beetles. I searched that area last fall and found only O. pilifera. It could be Ulmus or Fraxinus, but I can't check. I have only bark, but it is still a good specimen with many large cups and with spores still alive. It is actually a better sample than #701 O. caudata that I mailed.
Igor
There are at least 7 species of Acer reported from that area and don't know them well. I won't be able to narrow it down without seeing leaves. It may have to wait until spring.
#496 - not O.caudata
For me, the bark from that specimen looks identical to the bark with O.pilifera (#545 https://inaturalist.ca/observations/61244005) from a neighboring tree, but it is just me and I could be very wrong. I will need to get bark from Fraxinus to compare. I assume that O. pilifera could only be on Ulmus.
If you want to study this specimen I can mail it to you or to Guy Marson.
Best regards,
Igor
I'm going to send it to Guy Marson, but I will wait until he receives my first package, in case he needs something else from me.
Yes, it was collected in November 2019 and I wasn't able to find it in 2020 and I looked hard three times during the fall.
I'm not limiting myself to Orbilia. I have at least 33 different species from Helotiales from 2020 that need identification. I just afraid to ask at once.
Igor