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20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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¿Capronia?
Josep Torres, 23-12-2024 14:37
Josep TorresHello.
Some tiny globose black ascomata found on December 1st in a beech forest, although the trunk is most likely Pinus sylvestris, as they appeared next to some specimens of Hyalocypha aureliella, a very common ascomycete on this type of wood.
Ascomata with a size of only (123.9) 129.8 - 155.1 (171.2) × (115.5) 125.5 - 149.9 (152.8) µm. not counting the hairs.
Brown hairs with thick walls, with one to four septa, measuring (25.4) 27.6 - 66.2 (90.9) µm., with a width at their base of (3.1) 3.2 - 4.6 (4.9) µm.
Asci are octosporic, inamyloid in Melzer form, measuring (63.5) 70.3 - 80.2 (84.2) × 4.9 - 6.9 (7.2) µm.
Few free spores observed, these hyaline spores, with a septum, with a constriction in it and with measurements of (9.5) 9.7 - 10.5 (11) × (3.3) 3.33 - 3.6 (4) µm., measurements practically identical to the mature spores inside the ascus, these spores inside the ascus with measurements of:
(9.1) 9.3 - 10.4 (10.8) × (3.2) 3.3 - 3.8 (3.9) µm
Q = (2.4) 2.6 - 3 (3.2) ; N = 32
Me = 9.8 × 3.6 µm ; Qe = 2.8
Given its characteristics, I am thinking of Capronia, although I cannot find any of the Keys to the genus that I have available that fit my proposal, and since I have seen something in some images that could correspond to paraphysis, I have even begun to doubt the genus.
Any suggestion from you will be well received.
Thank you very much in advance.
Greetings and Merry Christmas.
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Josep Torres, 25-12-2024 12:13
Josep Torres
Re : ¿Capronia?
Hello.
Any suggestions.
Since the Keys to Capronia are not leading me anywhere, could it be possible that with this spore morphology and its measurements it could be Helminthosphaeria?
Best regards and Merry Christmas.
Thomas Læssøe, 29-12-2024 13:03
Re : ¿Capronia?
Capronia species have bitunicatae asci, so this genus is excluded since the asci in your fungus are unitunicate with a small refractive annulus. Helminthosphaeriaceae is a possibility as you imply.
happy new year
Josep Torres, 30-12-2024 08:20
Josep Torres
Re : ¿Capronia?
Thanks Thomas.
In any case, I'm already saving it in my files as Helminthosphaeria sp.
Happy New Year.