11-05-2026 12:32
Bernard CLESSE
Pourriez-vous m'aider à identifier cette héloti
13-05-2026 15:26
François Freléchoux
Bonjour,Voici une récolte faite il y a quelques j
12-05-2026 15:41
Nicolas VAN VOOREN
Dear Ascolovers, especially interested in Pezizale
13-05-2026 12:05
Thierry Blondelle
Bonjour à tous,J'aimerais avoir confirmation de c
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
11-05-2026 20:22
Lothar Krieglsteiner
on attached twig of standing Ficus caricaquite uns
29-04-2026 10:44
Lothar Krieglsteiner
growing at moist, drying-out soil at the side of a
Pyrenopeziza
Guy Buddy,
29-04-2020 18:52
I found these fruits on dead stems of Hydrangea arborescens in Pennsylvania, USA. Apothecia when fully opened 1-2mm. Spores in H20 measure (8.7) 11.6 - 15.6 (16.2) × (2.1) 2.3 - 3.2 (3.5) µm, Q = (3.7) 3.8 - 5.7 (6.6) ; N = 15, Me = 13.4 × 2.7 µm ; Qe = 4.9. Spores obovoid, aseptate even in the ascus, smooth. Asci measure ~50-60 x 9-10 um. IKI + blue. Paraphyses filiform. Hairs on outside appear smooth.
I was thinking maybe P. fracta, which has been reported on Hydrangea before, spore size and shape match, but I am not sure.
Best,
Devin
Guy Buddy,
29-04-2020 18:57
Re : Pyrenopeziza
Micro
Hans-Otto Baral,
29-04-2020 20:36
Re : Pyrenopeziza
This sounds a reasonable ID. Do you have literature which gives a spore size? Perhaps Seaver? The old authors don't give but mention the oblong clavate spore shape. I dod not hear of this species so far.
Guy Buddy,
30-04-2020 00:38
Re : Pyrenopeziza
Hey Hans,
P. fracta was from Linnean Society of London, 1904 that I pulled from Google. I am not confident on that and the name might be outdated or not even valid. I dont have much literature on this genus except Gremmen 1958, which depending on if "the receptical is verrucose or hairy" keys me out to Section 1, subsection b or Section 7 Trichantina, which includes P. escharodes. E. Rubio's micrographs of escharodes compares to what I am seeing with my specimen, thats as far as I have gotten.
Devin
P. fracta was from Linnean Society of London, 1904 that I pulled from Google. I am not confident on that and the name might be outdated or not even valid. I dont have much literature on this genus except Gremmen 1958, which depending on if "the receptical is verrucose or hairy" keys me out to Section 1, subsection b or Section 7 Trichantina, which includes P. escharodes. E. Rubio's micrographs of escharodes compares to what I am seeing with my specimen, thats as far as I have gotten.
Devin
3C9DCC10-E86A-4EC5-A271-50B2F0010C53-0001.jpeg
Hans-Otto Baral,
30-04-2020 10:06
Re : Pyrenopeziza
Oh yes, I see. So you have larger spores, maybe because they are alive.
The spores are larger than in P. escharodes. I suppose when you repeatedly collect this species on Hydrangea and it has always such large spores, it would be a hint on a good species. Otherwise only DNA will help to clarify this taxon.
Zotto