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21-08-2018 13:18

Castillo Joseba Castillo Joseba

De ayer en bosque de fagus Me pareció una Hypocr

20-08-2018 22:51

Mlcoch Patrik Mlcoch Patrik

Hi, I would like help with determination.Perithec

15-08-2018 21:56

Andgelo Mombert

Bonsoir à tous,Sur pétioles et nervures de feuil

11-08-2018 19:10

Sven Heinz Sven Heinz

Hello together, does anyone have any idea what th

08-08-2018 19:44

Andgelo Mombert

Bonsoir à tous,Apothécies de 0,5-1 mm de diamèt

17-08-2018 21:50

Greiff Georges

Hello, Today, on two Fraxineus trees about 100m a

16-08-2018 16:08

Blasco Rafael Blasco Rafael

Hola, he recogido esta muestra sobre tronco de Abi

15-08-2018 15:45

Gernot Friebes

Hi,we collected this Scutellinia a few days ago on

15-08-2018 10:24

Gernot Friebes

Hi,found on the bark of an old Picea tree at appro

13-08-2018 09:43

Pintos Angel Pintos Angel

hello, anybody has?Barr ME, Cannon PF (1994) Calos

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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