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04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Trematosphaeria hydrophila?
Maren Kamke, 12-11-2015 21:40
Maren KamkeHi everybody,
I found this Trematosphaeria species on Spartina anglica at the shore of the Wadden sea. Perithecia half immersed, single or in groups, diameter up to 0,8 mm, no basal wall detectible, the thickness of sidewall is up to 40 µm. Asci up to 186 x 14 µm, IKI negative. Spores mostly 5-septate, endcells slightly paler than the others, in all cells large oil-drops plus eventually some smaller ones. Spores smooth, no striate walls, without sheat or hyaline appendages, (31-38) 34.7 x 6.9 (6,5-7) µm.
Regards, Maren
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Castillo Joseba, 12-11-2015 21:45
Castillo Joseba
Re : Trematosphaeria hydrophila?
Maren...

Fantastico trabajo ... me gustan mucho las fotos micro  

Saludos
Joseba
Jacques Fournier, 13-11-2015 09:44
Jacques Fournier
Re : Trematosphaeria hydrophila?
Hi Maren, this is a very interesting find.
Trematosphaeria hydrophila is a variously interpreted taxon (Holm, Boise) that needs to be redefined. I know something referrable to T. hydrophila from freshwater habitats, lentic as lotic, with somewhat larger spores and different ascomata but fairly similar. I am not aware of reports from marine environment.
I send you my notes on this species privately.
Cheers,
Jacques
Björn Wergen, 13-11-2015 16:52
Björn Wergen
Re : Trematosphaeria hydrophila?
Hi Maren,

großartiger Fund. Hast du von der Kollektion nochwas übrig? Ich könnte es vergleichen mit einer ähnlichen Aufsammlung von Nobi, ebenfalls als "T. hydrophila" bestimmt.

lg björn