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10-05-2026 16:18

brigitte vignot

bonjour trouvée  en Ariège sur bois une petite

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

10-05-2026 09:02

Buckwheat Pete

Hello everybody, ould this be Lachnum subvirgineu

08-05-2026 11:55

Gernot Friebes

Hi,found on a decorticated Picea abies branch stil

11-05-2016 20:37

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi,this very little ascomycete grew on soil in a m

09-05-2026 07:37

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,please, could anyone share this paper?Ferná

07-05-2026 11:02

Ã…ke Widgren Ã…ke Widgren

Hello,About two months ago I found a strange Delit

05-05-2026 22:40

Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

06-05-2026 11:25

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

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? Lophiotrema with crimson interior in KOH
Alex Akulov, 20-12-2015 13:27
Alex AkulovDear friends
Can you help me to identificate one Ascomycete fungus with very distinct macromorphology? I think it may be Lophiotrema sp., but have no idea what same. May be you already familiar with it.

Fructification formed on the rotten decorticated wood of foliage tree (cf. Quercus) in the maple-linden-oak forest).

Pseudothecia 315-430 µm in diam., black, solid, thick-walled, with bases immersed in the thin black stroma, which cover all substratum surface.

In the mature ascomata the upper part of pseudothecia splits and exposes the brown interior. In KOH ascomata interior distinctly stay crimson.

Asci bitinicate, av. 95 × 14,5 µm, wider at the top and gradually tapering to the stipe. Pseudoparaphyses abundant, branched, filiform. Ascospores mostly two-seriate, fusiform, slightly curved, with (3-) 5-7 transverse septae, with distinctly inflated submedian cell, (22-) 23,6-26,6 × 4,4-5,7 µm (in the broadest part). Ascospores at most hyaline, but some brownish were observed too.

Photos turned out not very successful, but allow you to see the main features.

Grateful before for help,
Alex
  • message #39690
  • message #39690
  • message #39690
Guy Marson, 21-12-2015 01:02
Re : ? Lophiotrema with crimson interior in KOH
Hi Alex, 

You may take a look in the Roussoellaceae if your species has crimson colored ostioles and spores with a +/- big gel sheet.

Cheers,

Guy