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09-01-2026 10:08

Blasco Rafael Blasco Rafael

Hola, en el mismo habitat que la anteriorRetamaDia

08-01-2026 21:22

Blasco Rafael Blasco Rafael

Hola, He recogido esta muestra de Orbilia sobre Re

07-01-2026 10:24

Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

07-01-2026 22:22

Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

07-01-2026 17:29

Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:05

Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

Thierry Blondelle Thierry Blondelle

Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

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Aleuria bicucullata or congrex?
Marc Detollenaere, 16-09-2023 16:21
Marc DetollenaereDuring a walk in a mixed forest , one of my friends found a number of small yellow to orange cups of about 2-3mm on naked soil.
The fruitbodies I took home were still young and contained mostly oval spores without ornementation of 12-12.5x7.5µ, with 2 large guttules. I also found a few spores with prominent crests. The spores he sent me had also high ridges and had the same size.No reaction with Lugol.
The spore size matches with bicucullata but the paraphyses bent over like a cane what is not describe in Van Vooren 2014. Is Aleuria congrex with rather small spores an option?

 Marc
  • message #76928
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François Bartholomeeusen, 17-09-2023 15:48
Re : Aleuria bicucullata or congrex?
Hi Marc,
Herewith the measurements (without ornamentation) of my three finds of A. cogrex. All measurements were done in water and from mature spores outside the asci!
Best regards,

François

dd. 4/10/2020

(14) 14.8 - 15.8 (16.2) × (8.3) 8.5 - 9.5 (9.7) µm
Q = 1.6 - 1.7 (1.9) ; N = 16
Me = 15.2 × 9.1 µm ; Qe = 1.7

dd. 22/112022

(13.9) 14.5 - 16.1 (16.5) × (7.5) 7.9 - 8.9 (9.1) µm
Q = 1.7 - 1.9 (2.1) ; N = 20
Me = 15.2 × 8.4 µm ; Qe = 1.8

dd. 29/11/2022

15 - 16.9 (17.2) × 7.9 - 8.8 (9.1) µm
Q = (1.8) 1.81 - 2.1 (2.2) ; N = 12
Me = 16.1 × 8.4 µm ; Qe = 1.9

Nicolas VAN VOOREN, 17-09-2023 18:39
Nicolas VAN VOOREN
Re : Aleuria bicucullata or congrex?
Your collection is partly immature, but the ornamentation visible on the third picture clearly points to A. bicucullata
Marc Detollenaere, 17-09-2023 21:01
Marc Detollenaere
Re : Aleuria bicucullata or congrex?
Nicolas and Francois,

Thank you very much for your comments

Marc