Accès membres

Mot de passe perdu? S'inscrire

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

26-02-2026 15:00

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, recolectada

24-02-2026 00:21

Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

24-02-2026 11:01

Gernot Friebes

Hi,found on a branch of Tilia, with conidia measur

23-02-2026 11:22

Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

« < 1 2 3 4 5 > »
Leptosphaeria on Tamus communis
Enrique Rubio, 23-05-2018 19:32
Enrique RubioHi again
Minute semi-inmersed pseudothecia (up to 200 microns in diam) with only the obtuse papilla visble, on stems of Tamus communis (Dioscorea c.).
The golden light ascospores are (1-)3-septate, the second cell slightly enlarged, with obscure apical conical appendages. 
It seems to match with the plate 0506 in last Bjorn Bwergen's book on Pyrenomyecetes, under the name Leptosphaeria scitula on Chelidonium. But the spore (and asci) size is larger than Holm and Shoemaker's descriptions.
What do you think?
Thanks again for help me.
  • message #53559
  • message #53559
  • message #53559
Mlcoch Patrik, 11-06-2018 21:00
Mlcoch Patrik
Re : Leptosphaeria on Tamus communis
I thing, that this can be Paraleptosphaeria nitschkei, or so something from this agregation. I have collection this species from the Papaver orientale, but most common are collections from Asteraceae. It would be very interesting this your collection sequencing, i should interested in this collection, because I interested in the genus Leptosphaeria and I this genus want to process in detail. 
On Tamus was found only Leptosphaeria tami, but it has shorter hyaline spore (17 x 4,5 um) and 4-septate. P. nitschkei has spore 3-5 septate and 28-36 x 3-4 um large. Your collection has characteristics of morfology of spore for P. nitchkei.
Enrique Rubio, 12-06-2018 13:25
Enrique Rubio
Re : Leptosphaeria on Tamus communis
Hi Patrik
Thank you for your help.
If you want I send you a part of my collection, please, give me your postal address.
Regards
Enrique