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14-05-2025 15:08

Lachnum sp.
Gernot Friebes

Hi,I'd appreciate your help with this Lachnum coll

14-05-2025 10:57

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Lachnum sp.
Gernot Friebes, 14-05-2025 15:08
Hi,

I'd appreciate your help with this Lachnum collection.
Host: indet. herbaceous stem.
Asci: without croziers.
Paraphyses: without strongly refractive VBs.
Hairs: without oxalate crystals, not inflated, at least up to 95 µm long. In one apothecium  covered by an orange substance (probably an artifact).
Ascospores: ca. 6.5-8 x 1.2-1.8 µm.

It seems like L. reynoutriae would be close...

Best wishes,
Gernot
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Hans-Otto Baral, 14-05-2025 15:54
Hans-Otto Baral
Re : Lachnum sp.
Hallo Gernot

at least the substrate is clearly Reynoutria. But I think the species fits also.

Zotto
Gernot Friebes, 14-05-2025 16:13
Re : Lachnum sp.
Super, danke, Zotto!
I wasn't sure about the substrate because I didn't see any Reynoutria at that location.

Best wishes,
Gernot
Hans-Otto Baral, 14-05-2025 16:19
Hans-Otto Baral
Re : Lachnum sp.
I actually see a bit difference to my Reynoutria-photos in cross section, but Rumex in comparison has a different appearance (rilled instead of smooth).
Gernot Friebes, 14-05-2025 16:32
Re : Lachnum sp.
Would it help if I took more photos? If so, of which parts of the substrate?
Hans-Otto Baral, 14-05-2025 16:44
Hans-Otto Baral
Re : Lachnum sp.
Schwer zu sagen.

Die großen runden Poren fehlen bei dir.

Hier R. japonica (HB 9963).

Ich denke von außen besehen lässt sich Reynoutria gut ansprechen.

Könntest du mir die Funddaten schicken, ich würde den Fund ggf. aufnehmen in die Beschreibung.
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Gernot Friebes, 14-05-2025 17:13
Re : Lachnum sp.
Danke für das Vergleichsbild. Hier noch ein paar Fotos von einem weiteren Schnitt von einer anderen Stelle des Stängels. Die großen Poren sind in dieser Form tatsächlich nicht vorhanden.

Die Funddaten schicke ich dir per E-Mail.
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