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17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

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Lachnaceae?
Guy Buddy, 08-05-2019 15:44
Fruiting from a dead Quercus leaf from the forest ground, Pennsylvania USA. The largest apothecia after incubating the leaf for one day was about .5mm wide.  Hairs, asci, paraphyses are hyaline.  No reaction in KOH, ascus apical apparatus and ends of spores are slightly amyloid in IKI. Hairs have crustations/crystals. Ascus opening width is narrow. 
(8.4) 8.9 - 12.5 (14.1) × (1.5) 1.6 - 2.1 (2.2) µm
Q = (4.6) 4.9 - 6.3 (7.2) ; N = 20; Me = 10.5 × 1.9 µm ; Qe = 5.6
Hair measure:(56.6) 60 - 66.5 (68.7) × 3.5 - 4.8 (5.4) µm
Q = (11.8) 12.4 - 18 (18.3) ; N = 8; Me = 63.7 × 4.2 µm ; Qe = 15.7
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Hans-Otto Baral, 08-05-2019 15:57
Hans-Otto Baral
Re : Lachnaceae?
I am not sure if you mixed something here.
There are almost cylnidrocal spores (living in water) and strongly fusiform ones (in ?CB).
Together with the large spore size I suspect the latter to be Incrucipulum ciliare. But there the hairs are thick-walled and bear crystals, and the living spores would be multiguttulate.

Please, if you have it still fresh, look again in water for the large fusiform spores.
Guy Buddy, 08-05-2019 16:17
Re : Lachnaceae?
Hans
Thanks for the quick response.  Attached are some more photos of the spores in H20.
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Hans-Otto Baral, 08-05-2019 16:27
Hans-Otto Baral
Re : Lachnaceae?
So they are all eguttulate. What is the length of the scale in the spore photos?
Guy Buddy, 08-05-2019 16:41
Re : Lachnaceae?
Sorry, the bar is 20um
Hans-Otto Baral, 08-05-2019 17:36
Hans-Otto Baral
Re : Lachnaceae?
Then you must divide your measurements /2. I measure 11-16  x1.8-2.2.

But I cannot recall s species like this, perhaps American.
Guy Buddy, 08-05-2019 20:18
Re : Lachnaceae?
Hans, you are right.  I measured from a 1000x photo while I was thinking it was 400x. 
The correct spore measurement is:(8.4) 8.9 - 12.5 (14.1) × (1.5) 1.6 - 2.1 (2.2) µm
Q = (4.6) 4.9 - 6.3 (7.2) ; N = 20; Me = 10.5 × 1.9 µm ; Qe = 5.6
Thank you for acute observation and sharing your expertise!