Calycina cruentata - Forum ASCOFrance

13-09-2025 14:10

Hymenoscyphus on Rubus

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Recherche

Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Marthamycetales revision published

Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01

Otidea platyspora or something else?

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Strickeria kochii?

Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Pseudocoprotus catenipilus ???

Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

dark- and small-spored Sordariomycetes on Fraxinus - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Hymenoscyphus?

Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Trichobolus

Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

Hymenoscyphus sp

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

« < 1 2 3 4 5 > »

Calycina cruentata

Marcus Yeo, 06-11-2013 22:51

I've been puzzling over this specimen for a while. Having compared it with some of Zotto's images I think it is Calycina cruentata. It also compares well with a previous post on Ascofrance.

It was growing on dead monocotyledonous leaves (Phragmites australis or Cladium mariscus) in lowland fen.

Apothecia are white, short-stalked, <0.5 mm diameter.

Excipulum is of thin-walled cells. Marginal cells are ca 20 µm, with oil-filled contents.

Asci 45-60 x 4-5 µm. Not sure whether croziers are present or not. Reaction of ascus tip in IKI is ambiguous – apparently red in some cases, but seemed to be blue in others.

Paraphyses are ca 2 µm wide, with oil-filled contents.

Spores (7-)8-10 x 1.5 µm, with a few small oil bodies.

Am I correct in identifying this as C. cruentata? Thanks in advance for help.

Marcus