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19-01-2021 15:09

Khomenko Igor Khomenko Igor

Hi, On spruce (Picea) needles, small, white disco

20-01-2021 12:29

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en Galicia

14-01-2021 18:36

Edvin Johannesen Edvin Johannesen

Apothecia up to 0,5 mm, on decayed wood of Populus

20-01-2021 20:00

Garcia Susana

Hola, Estoy buscando la descripción de Mycosphae

19-01-2021 10:27

Enrique Rubio Enrique Rubio

Could this synnematous hyphomycete be a Spiropes s

14-01-2021 17:08

Malcolm  Greaves Malcolm Greaves

A large group of what I expected to be Peziza were

20-01-2021 19:56

Enrique Rubio Enrique Rubio

Perithecia non stromatic, clypeate, inmersed under

20-01-2021 15:58

Juuso Äikäs

Last February I found these fungi growing on a fal

06-01-2021 21:01

Andrew N. Miller Andrew N. Miller

Dear Friends,  I would like to obtain a collectio

20-01-2021 11:04

Marek Wolkowycki Marek Wolkowycki

Bialowieza Forest, on dead fruiting bodies of Skel

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Allophylaria subliciformis?
DirkW, 27-11-2020 11:34
DirkWsalut a tous,

on dead stem of indet. herbaceous plant we found in a poor meadow on calcarous ground these beautiful reddening helotiales. apothezia up to 1mm, with a conspicious darkening base, young apos are more or less dirty white.
spores quite variable in lenght and shape (19-26 x 4,5-7) with rounded ends, never pointed, vital with two bigger oil-drops ans some little ones, when overmature with a central septation. paraphyses filiform, a little swollen at the apex, sometimes with brownish drops at the tip, colouring red with lugol.
this all resembles much what is documentated in the zotto database under

https://drive.google.com/drive/folders/0B5SeyOEkxxZha002c3U5eklxOEU

but the problem is: the iodine-reaction in lugol is immediately blue and not red! who knows advice or has found this species too? 

all best

dirk
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Hans-Otto Baral, 27-11-2020 12:13
Hans-Otto Baral
Re : Allophylaria subliciformis?
Hi Dirk

I can't say but I would not think Allophylaria. The shape of the apical ring should be shown in more detail (in dead state). Asci seem to have croziers.

The prismatic excipulum and the large spores excludes a Phaeohelotium.

Zotto
DirkW, 27-11-2020 13:57
DirkW
Re : Allophylaria subliciformis?
hi zotto,

thank you very much! i will check iodine reaction and apical ring again. other microscopy has stunning similarity to collection i linked, in my view also the apos of the first two field-pictures. meanwhile i found a paper by ruben and you dealing with the species! there, a blue reaction is mentioned in weak iki-concentration, and a red one in strong concentration! so i will try again, drowning it in lugol and see if i can get a red one ;-)

best

dirk
Hans-Otto Baral, 27-11-2020 15:01
Hans-Otto Baral
Re : Allophylaria subliciformis?
Yes, you must apply strong-concentrated Lugool. This RB-type of reaction (blue at low) is universal even in lichens.

The spore width was a bit too low for my taste, could you please give also ascus measurements (restricted to living state)?

Thanks
DirkW, 27-11-2020 16:42
DirkW
Re : Allophylaria subliciformis?
hi zotto,

the measuring of asci is 110-120 x 9-10. so unfortunately, much shorter than in the subliciformis-paper.
iodine-reaction seems to be "calycina-type". but stays blue! now i also saw in lugol  coloring and VBs in the textura! same kind as in a. subliciformis.
perhaps a related species? maybe ... i will put it in the ?-folder ;-)

best

dirk

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Hans-Otto Baral, 27-11-2020 17:21
Hans-Otto Baral
Re : Allophylaria subliciformis?
Yes, and much wider too, even from dead measurements!

But Allophylaria is correct. A. byssacea would better fit, but that is red at any concentration! I only know A. macrospora on woody substrates which reacts blue (BB), but that has multiguttulate spores.

DirkW, 27-11-2020 17:29
DirkW
Re : Allophylaria subliciformis?
... yes, and strongly pointed, fusoid spores (macrospora). seems this is an undescribed one, as so often in inoperculate finds ... but my silent hope was, you have it in your big desk with the unpublished ones :-)