24-03-2026 15:44
Åge OterhalsI hope someone can confirm the name of this collec
25-03-2026 15:06
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me confirm
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
25-03-2026 13:54
Enrique Rubio
Does anyone know where I could download Paoletti's
25-03-2026 15:46
Michel Hairaud
Bonjour, Je sollicite de l'aide pour cette récol
24-03-2026 19:59
William Slosse
Hello everyone,On 23/03/26, I found the following
21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
24-03-2026 21:37
Elisabeth StöckliBonsoir,Sur bois (tronc) très pourri de conifère
24-03-2026 21:07
Ethan CrensonHello all, A friend collected this asco in a wood
23-03-2026 20:16
Miguel Ángel Ribes
Good eveningI'm unable to identify this Coprotus o
This fungus was growing on an attached dead branch of Quercus robur in a small wooded area in Capel, Surrey, England. Lat, long 51.151143, 0.313536, altitude 85m.
Perithecia were erumpent to superficial. Individual perithecia were about 0.25mm. in diameter, these occurred in various quantities from very small to a group of 1 cm across shown in 1st and 2nd photos. Peridium was textura angularis.
Most of the perithecia contained immature spores, these were golden, 35-37.5 x 5-7.5 and each had a very conspicuous nucleus. A few mature spores were found, these were 6-7 septate and averaged 41 x 7.5. The septae seemed to develop late and were not observed when the spores were within the asci. Asci on average were 150 x 15.
Some of the ascospores had conidia developing at the septae, the conidiospores were 10-12 x 2.5-3.5. Golden masses of spores were exuding from some of the ostioles, these consisted of both conidio and asco spores.
It seems to resemble a Lasiosphaeria or an allied genus but I cannot get any closer with its determination, can anyone help please?
Best wishes
Vivien
likely L. sorbina, as pointed out by Zotto.
You should check your collection against the detailed description given by Miller & Huhndorf in Mycologia, 96(5), 2004, pp. 1106–1127.
Cheers,
Jacques
http://wwx.inhs.illinois.edu/files/6813/2111/8750/Lasiosphaeria_ovina_Miller_Huhndorf_Mycologia2004.pdf
Andy
I have checked my collection and it does indeed seem consistent with the description of Lasiosphaeria sorbina given in the Miller & Huhndor paper that you refer to. The only slight difference is that the spores in my collection appeared golden particularly when in the ascus, could that just have been due to pigments present in the centrum?
It is apparently a very rare, or at least rarely recorded, fungus here in the UK so great to have it identified.
Best wishes
Vivien
Cheers,
Andy
Cheers
Vivien
An anecdote, I found it a new time yesterday, on Sorbus aria, around Eutypella sorbi, hidden under the bark. So I agree with the identification , of course. A nice fungus.
Alain
I actually saw the paratype of L. capitata, probably given to me by Jacques in 2004 for some reason.
In GenBank I only see L. sorbina, does a sequence of L. capitata exist?
I still wonder about a collection on Fagus bark (inner side), with light brown Sp. *19.5-23 x (5-6-)6.5-7 µm. - Munk reports L. sorbina on inner side of Fagus bark, but with sp. 28-45 x 6-8 µm.
Zotto
Cheers,
Andy