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18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

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

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White apos on Fagus cupules, possibly Calycina
B Shelbourne, 03-09-2024 19:13
B Shelbourne• First, I thought it may be Hymenoscyphus but then macro looked strange.
• The paraphyses, macro, and maybe the spores, make me think of Calycina.
• I was surprised that the apical rings were inamyloid.
• Any feedback and suggestions of what to look for or get a better look at appreciated.

Found yesterday (early September) on cupules of Fagus sylvatica, after rain but cupules still quite dry, in shallow litter, probably thousands of cupules (only 2/~100 checked with apothecia), in a clearing under several mature trees, in mixed deciduous woodland, South Downs, England.

Apothecia: Whitish, slightly translucent, very small, cupulate, short stipitate, solitary to 2-caespitose, possibly browning slightly with age, appear superficial but some growing under hair-like covering of the cupule, immature appear globose with disc opening early, gelatinous appearance and texture (difficult to squash), receptacle with pruinose/frosted appearance, margin looks more whitish, often undulating, disc concave, more smooth and translucent appearance, some apothecia with short, irregular, whitish hyphae protruding from the receptacle but may not be natural, no subiculum or extensive anchoring hyphae observed.

Excudate: Considerable brownish to yellowish gelatinous substance in the slides.

Spores: 7-9.4 x 2.3-2.8 um, Q = 2.5-3.3, n = 10, mean = 8.1 x 2.7 um, Qmean = 3, broadly cylindrical, slightly curved in profile view, homopolar, with 2-3 large to medium, yellowish-greenish VBs and some small LBs. most appearing aseptate but some mature spores in asci appear to have a single septa.

Asci: 8-spored, apical rings inamyloid, apex hemispherical to rounded, apical thickening < 1 um, tapering, I think croziers seen but not sure.

Paraphyses: Appear longer than asci, narrow cylindrical, slightly inflated towards the apex, multi-septate, long hyaline VBs, especially towards the apex, no branching observed.
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