Capronia pulcherrima? - Forum ASCOFrance

17-09-2025 10:50

Ascomycete on Polystichum proliferum

Heather Merrylees

Hi there!I am hoping for any advice on the identif

27-11-2025 15:41

Hysteriales (Mytilinidion mytilinellum??) on Larix cone, with too? big spores - Denmark

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

27-11-2025 12:01

Valsa/Cytospora on Cryptomeria bark - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10496727

27-11-2025 11:46

another loculo on Aesculus with muriform spores - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10493918

27-11-2025 11:31

Loculo on Aesculus - Denmark

Thomas Læssøe

Collectors notes: Immersed ascomata, erumpent thro

23-09-2025 13:31

"Bertia-like" Sordariales on Typha - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

25-11-2025 14:24

Anybody recognize this strange anamorphic fungus on Sambucus nigra, Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

26-11-2025 18:13

All Mycotaxon issue available in BHL

Jason Karakehian

The entire run of Mycotaxon is now available throu

21-11-2025 15:22

asco 21-11-25

Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

24-11-2025 18:17

Hymenoscyphus sp

ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

« < 1 2 3 4 5 > »

Capronia pulcherrima?

Chris Yeates, 05-04-2021 22:27

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

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

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

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.

Accès membres

Forum AscoFrance