07-05-2024 00:04
Ethan CrensonA friend found these black gelatnous cups on a twi
06-05-2024 10:02
François BartholomeeusenGood morning,At the end of an excursion in De Zegg
05-05-2024 09:59
Gernot FriebesHello,I failed to identify this anamorph, which gr
19-04-2015 20:20
Enrique Rubio
Hi again Could you help me with this paper? NANN
30-04-2024 16:22
François BartholomeeusenDear forum members,On April 25 2024, I found one f
03-05-2024 18:04
Riet van Oosten
Hello, Found by Laurens van der Linde on Rubus fr
Hello everybody,Last week I found this discomycete growing on dead stem of Rubus fruticosus, but I can't
determinate. What's your advice?
Details:
Apothecia 0,3 – 0,5 mm. across. Sessile. Turbinate. With white discs that
become pink-red (with age?). I have seen
no hairs outside (what's necessary in order to belongs to the Hyaloscyphaceae –
I mean?).
Asci: IKI+. 70 – 80 x 6 – 7 mµ (with croziers- but I'm not certain).
Ectal excipulum of textura globulosa-angularis
Spores: 8 – 13 x 3 µm. curved, 1 septe
Parafyses without refractive guttules
Regards
Piet Bormans
Ps : dimensions ( x 1000) 1 = 1,01 µm
this is a Calycina, and one of those that turn red with age. Typical of the genus are the apical ring type (very different from Phaeohelotium which has Hymenoscyphus-type), and the mollosioid VBs in the paraphyses (not clearly seen on your photos).
I also think yours has croziers. I would compare this with my C. heterospora nom. prov. which had partly spores of different size within an ascus, but not always. This ispecies s related to C. parilis and C. herbarum but certainly not the same.
here a link
https://www.cubby.com/pl/heterospora/_c0652748b1c043108dde38f0e2fd6dab
Zotto
Piet