23-04-2024 15:18
Lothar Krieglsteiner... but likely a basidiomycete. I hope it is o.k.
22-04-2024 11:52
Zuzana Sochorová (Egertová)Hello,I made a loan of a collection of Microstoma
23-04-2024 13:17
Edouard EvangelistiBonjour à tous, Je viens de récolter ce que je
11-01-2022 16:36
Jason KarakehianHi does anyone have a digital copy of Raitviir A (
22-04-2024 20:38
Miguel Ángel RibesGood afternoon.Does anyone know this anamorph?It g
19-04-2024 14:28
B ShelbourneCudoniella tenuispora: Distinctive macro and habit
20-04-2024 16:02
Michel HairaudBonjour,On me fait part, pour diffusion d une list
20-04-2024 09:56
Josep TorresHello.A few apothecia collected on Sunday, April 7
Hypoxylon on Carpinus?
Mirek Gryc,
30-03-2020 20:45
Hi.
I found two Hypoxylon collections growing on Carpinus yesterday. The shape of the sporocarps varies but I suspect it is the same species. So far, I've only microscoped the first one.
The keys contained in the work "New species of Hypoxylon from western Europe and Ethiopia" lead me to the Hypoxylon commutatum. I compared the features of my sporocarps to all species found on Carpinus, but none match mine.
Description for Hypoxylon commutatum is quite scanty but only in it I did not find any features that would exclude this species.
The reaction of porus in my collection was very capricious. Only a few ascus have a slight bluish discoloration of porus. Over 95% of ascus do not show reaction to iodine. In no mature ascus I have not observed a reaction.
Spores in my collection slightly larger than those listed on the page:
http://pyrenomycetes.free.fr/hypoxylon/html/Hypoxylon_commutatum.htm
In the original description, however, in "Pyrenomycetes germanici" they give slightly larger ones that perfectly match the size of the spores in my collection.
Perhaps I have not reached all species that occur on Carpinus so I am asking you for help.
The keys contained in the work "New species of Hypoxylon from western Europe and Ethiopia" lead me to the Hypoxylon commutatum. I compared the features of my sporocarps to all species found on Carpinus, but none match mine.
Description for Hypoxylon commutatum is quite scanty but only in it I did not find any features that would exclude this species.
The reaction of porus in my collection was very capricious. Only a few ascus have a slight bluish discoloration of porus. Over 95% of ascus do not show reaction to iodine. In no mature ascus I have not observed a reaction.
Spores in my collection slightly larger than those listed on the page:
http://pyrenomycetes.free.fr/hypoxylon/html/Hypoxylon_commutatum.htm
In the original description, however, in "Pyrenomycetes germanici" they give slightly larger ones that perfectly match the size of the spores in my collection.
Perhaps I have not reached all species that occur on Carpinus so I am asking you for help.
Spores:
(10.9) 11.3 - 12.1 (12.5) × (4.8) 5 - 5.5 (6) µm
Q = (2) 2.1 - 2.3 (2.6) ; N = 15
Me = 11.7 × 5.3 µm ; Qe = 2.2
Q = (2) 2.1 - 2.3 (2.6) ; N = 15
Me = 11.7 × 5.3 µm ; Qe = 2.2
10.92 4.75
11.55 5.51
11.27 4.98
11.73 4.99
12.02 5.44
12.50 4.81
11.74 5.08
12.10 5.43
12.44 5.05
11.53 5.51
11.60 5.07
11.80 6.00
11.21 5.45
11.61 5.51
11.79 5.50
11.55 5.51
11.27 4.98
11.73 4.99
12.02 5.44
12.50 4.81
11.74 5.08
12.10 5.43
12.44 5.05
11.53 5.51
11.60 5.07
11.80 6.00
11.21 5.45
11.61 5.51
11.79 5.50
Thank you in advance.
Mirek