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24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 15:06

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 13:54

Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

25-03-2026 15:46

Michel Hairaud Michel Hairaud

Bonjour, Je sollicite de l'aide pour cette récol

24-03-2026 19:59

William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

24-03-2026 21:37

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

24-03-2026 21:07

Ethan Crenson

Hello all, A friend collected this asco in a wood

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

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White apothecia on pine cone
Hulda Caroline Holte, 05-03-2026 10:07
Hello,

I found and collected this species growing on Pinus sylvestris cones on the 8th of February, in Buskerud county, Norway. The temperature was around -10° C when I collected the specimen, but the apothecia quickly revitalised when put in a moist plastic bag in the fridge.


The largest apothecia measure 400 µm diameter and have an approximately 100 µm long stalk.


The ascospores have many small LBs. OCI about 2 (3)
(5,8) 6,7-7,7 (8,6) x 1,9-2,4µm
Mean= 6,81 x 2,2µm


Asci with croziers IKI+ Most asci react blue, but some turn reddish (even where I would assume that the concentration of iodine would be the same, see photo)
(34,6) 36,5-43,2 x (5,3) 5,8-7,7 µm


The paraphyses are cyllindric-clavate, septate and have a large refractive vacuole (?). The vacuole (?) partially dissolves and turns golden in IKI. It does not stain readily in CRB (even after multiple minutes), but I have seen some dark blue spots (metachromatic bodies?) especially after adding KOH to the other side of the slide. The paraphyses measure up to 3,3 µm at the tips.


The hairs are slightly rough and measure 3,2-4 µm at the apex. Most of the hairs contain a more or less globular body which turn amber in IKI.


The spore measurements were taken from newly discharged spores in a water mount. All measurements were taken from living cells.


Does anyone have an idea as to which species, or even genus this might be?


Thank you in advance and best regards,


Hulda

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Hans-Otto Baral, 05-03-2026 11:13
Hans-Otto Baral
Re : White apothecia on pine cone
Very good description! Surely the contents in paraphyses and hairs are VBs. Sometimes it is necessary to make the preparation slightly alcaline, e.g. with NH4OH or very diluted KOH which aids the CRB to enter the living cells. But too much alcali kills the cells.

Despite the rough hairs this must be a Pezizellaceae, perhaps a Ciliolarina?

Zotto
Hulda Caroline Holte, 05-03-2026 17:19
Re : White apothecia on pine cone
Thank you for your answer and for the feedback! 
Ciliolarina seems like a good suggestion. Is there anything that I can check to narrow it down further? 
I read in your "Vital versus herbarium taxonomy" that "CRB never induces the formation of MCs but rather stains the bodies in a homogeneous turquoise-blue" (pg 364). In the CRB mount that I added KOH to (closer to the KOH than the photos shown here) I observed a turquoise color (not shown in the photos) a few seconds before the cells died and the color disappeared. I did not observe the strong turquoise color elsewhere. Can VBs sometimes get dark blue spots in CRB instead of staining turquoise?
Kind regards, Hulda
Hans-Otto Baral, 05-03-2026 17:30
Hans-Otto Baral
Re : White apothecia on pine cone
Good question. Ciliolarina is difficult. Some persons are working on it, Stip and Ingo. There exist taxa such as C. neglecta in which the VBs stain violet in IKI, but this is definitely not the case here.

Often the spores get a lilac surface in CRB due to some gel on them. Not sure if all species of the genus do that. 

Yoru question about the turquoise stain: you seem to have seen it for a second, so this is just what I mean. With a lower alcali concentration you would see it longer. 

Dark blue spots in VBs of living cells I cannot imagine. Only when the cells are dead such a colour seems possible.
Hulda Caroline Holte, 06-03-2026 09:45
Re : White apothecia on pine cone
Thank you again for your answers.
Kind regards, Hulda
Ingo Wagner, 08-03-2026 22:33
Ingo Wagner
Re : White apothecia on pine cone
Hello Hulda!

Nice description!
"The ascospores have many small LBs. OCI about 2 (3)
(5,8) 6,7-7,7 (8,6) x 1,9-2,4µm
Mean= 6,81 x 2,2µm"

Are the spores really that narrow?
Could you show the brown IKI reaction of the vacuoles in the paraphyses again in a larger area?

Thank you and greetings
Ingo

Hulda Caroline Holte, 13-03-2026 09:58
Re : White apothecia on pine cone
Thank you for your interest, Ingo.
The asci in the previous water mount kept ejecting new spores and created shifting in the water that moved the spores and made them difficult to measure. Hence, I could not be 100% sure that the measurements were correct so I have now I measured the spores again. This time from a fresh spore print.
These are the new measurements:
(5,3) 5,8-7,2 (7,7) x (2,1) 2,2-2,9µm
Mean= 6,45 x 2,51µm

I have added photos of the paraphyses in a larger area as requested. Let me know if these are insufficient. I have also added a photo of the spores from the spore print in CRB.


Kind regards, Hulda

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Ingo Wagner, 15-03-2026 11:26
Ingo Wagner
Re : White apothecia on pine cone
Hello Hulda!

Thanks for the new fotos and measurment.


"The asci in the previous water mount kept ejecting new spores and created shifting in the water that moved the spores and made them difficult to measure."


Spore measurements using a spore image are simpler and more accurate.


"Let me know if these are insufficient."


The micro-images would be perfect if a scale were integrated.


With your new measurments and photos fits your find with a Ciliolarina-species with the provisional name Ciliolarina "IKI bb H+ VB IKI-"
https://drive.google.com/drive/u/0/folders/0B5SeyOEkxxZhdVRlWGVQNE9qYkk?tid=0B5SeyOEkxxZhYVZub0N1aGY5YTg&resourcekey=0-mAZI-5ORfpJ7IfGOYR2caA


The vacuoles of this species do not stain reddish-brown or bluish with IKI.
Discolorations with IKI, as shown in the following link, must not be present.
https://asco-sonneberg.de/pages/gallery/ciliolarina-violette-vakuolen-260208jj43130.php


Of course, it's also possible that it's a different species of Ciliolarina. Sequences will have to show that.


Greetings
Ingo

Hulda Caroline Holte, 16-03-2026 17:10
Re : White apothecia on pine cone
Thank you for your answers and for helpful insight into this intriguing, but difficult, genus.
I currently only have a simple camera setup that ensures that the spore photos are of the same size relative to each other, but I hope to obtain equipment for measuring photos and adding scales soon.
I have looked at the images in the linked folder and found one collection (HB62246E) that has a note: “IKI deep redbrown” about the paraphyses and “IKI 2bb/(r)b” about the asci. This would also fit my collection.
Unfortunately, I do not have access to sequencing so it will have to stay a Ciliolarina sp.
Kind regards, Hulda
Hans-Otto Baral, 16-03-2026 17:28
Hans-Otto Baral
Re : White apothecia on pine cone
You only need a calibration slide from which you take a photo (for 1000x under oil immersion). From this a scale can easily be drawn and mounted manually in each photo (I use "multiply" in ACDSee).