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26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

27-03-2026 10:47

Stictis cf. friabilis and literature request
Åge Oterhals

I have tentatively identified this Stictis to S. f

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

24-03-2026 21:37

Helminthosphaeria
Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

26-03-2026 12:50

Pseudombrophila
David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

26-03-2026 11:17

asco in Ulmus
Vasileios Kaounas Vasileios Kaounas

Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Orbilia with resin deposits
Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

24-03-2026 15:44

Leptodontidium cf. trabinellum
Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 20:53

Didymopsis helvellae on Helvella?
François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Coprotus 210226 315
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

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Capronia pulcherrima?
Chris Yeates, 05-04-2021 22:27
Chris Yeates
Bonsoir tous

Using Gernot's excellent key to the genus in Ascomycete.org I arrive at C. pulcherrima. However I am uncertain as to how large the spores of this species can get. Munk in his  description of Dictyotrychiella pulcherrima gives spore measurements of 10-11 x 3-4µm, and this is repeated in the transfer to Capronia: 

http://www.indexfungorum.org/names/NamesRecord.asp?RecordID=129152 > "Page Image for Protologue" -presumably simply repeating Munk's measurements.

However in discussions Gernot has had on ASCOfrance the impression is that the spores can be larger than that - though always significantly smaller than those of C. semi-immersa. Details of my find are:

perithecia up to 200µm diameter, with short straight/curved setae; on fallen decorticated, thin (16mm diameter) branch of Salix caprea/cinerea

asci 8-spored, spores 10.9-13.8(14.1) x 4.5-5(5.2)µm; septation as in images below

Am I correct in thinking this is OK for C. pulcherrima?

Amitiés, Chris


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Eduard Osieck, 06-04-2021 10:34
Re : Capronia pulcherrima?
Hi Chris
Untereiner (1997) gives 11.7-14.6 x 3.3-4.7 um so your collection fits quite well.
Cheers, Eduard
Chris Yeates, 06-04-2021 14:37
Chris Yeates
Re : Capronia pulcherrima?
Dankjewel voor je hulp, Eduard!

Chris
Wendy Untereiner, 06-04-2021 18:25
Re : Capronia pulcherrima?
Dear Chris,

Yes, this certainly looks like Capronia pulcherrima.  I'd be very happy to attempt to culture this fungus if your collection has been air-dried.  My mailing address is provided, below.

Yours,

Wendy

W.A. Untereiner
Deprtament of Biology
Brandon University
270-18th Street
Brandon, MB
Canada R7A 6A9


Charles Aron, 06-04-2021 22:30
Charles Aron
Re : Capronia pulcherrima?

Hi Chris,


Very interested to hear about your Capronia-I recently found one (by accident) also on decorticated Salix. I wasn't familiar with the genus and it was Nick Aplin who suggested C. acutiseta (see http://ascofrance.com/forum?page=4). I don't normally go for these tiny ascos but Capronia has a lot going for it with setae and interesting spores. Was out today and did not find much but did turn up another Capronia which I'll post shortly.


Best wishes,


Charles.