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07-01-2026 10:24

Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

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

02-01-2026 22:48

éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

William Slosse William Slosse

Good evening everyone,First of all, my best wishes

03-01-2026 13:08

Niek Schrier

Hi all,We found groups of perithecia on a Lecanora

03-01-2026 15:36

éric ROMERO éric ROMERO

Bonjour, Pouvez-vous me dire quel est le nom à p

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

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Sowerbyella radiculata?
Malcolm Greaves, 14-01-2021 17:08
Malcolm  GreavesA large group of what I expected to be Peziza were found in soil under a Taxus in a local churchyard. 
With no bluing of the asci and heavily warted and ridged spores with two guttules averaging 14.5 - 15 x 7 - 7.8 it looks to be a good fit for Sowerbyella radiculata. The fruitbodies are much less yellow than the books show but we have had severe frosts and lots of rain over the last few night so could that have caused the change in colour? Also although it has a very thin root there is not the strong hairy root that is described in the literature.
Is there another species I should be looking at.
Thanks
Mal
  • message #67073
  • message #67073
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Thomas Læssøe, 14-01-2021 17:54
Re : Sowerbyella radiculata?
colour and shape fine with me :-)
Nicolas VAN VOOREN, 14-01-2021 18:39
Nicolas VAN VOOREN
Re : Sowerbyella radiculata?
The spore dimensions fit better with S. crassisculpturata, but the ornamentation (almost reticulate) points to S. radiculata.
Maybe some other pictures of ascospores could help.
Malcolm Greaves, 15-01-2021 12:01
Malcolm  Greaves
Re : Sowerbyella radiculata?
Does this montage help Nicolas?
Mal
  • message #67097
Nicolas VAN VOOREN, 15-01-2021 13:42
Nicolas VAN VOOREN
Re : Sowerbyella radiculata?
Based on these new pictures, I would say it is S. crassisculpturata because the spore ornamentation is heterogenous. My collections of S. radiculata have smaller ascospores and these spores are mainly reticulate.
Of course the differences between these two species are subtle and may only represent a variation. A molecular revision of the genus Sowerbyella will help to clarify the true and "false" species.
Malcolm Greaves, 15-01-2021 17:33
Malcolm  Greaves
Re : Sowerbyella radiculata?
Excellent thanks Nicolas. I will record it as such.
Mal
Calzada Augusto, 19-01-2021 20:05
Calzada Augusto
Re : Sowerbyella radiculata?
Hola :
Yo tambien pienso viendo la ornamentacion de las ascosporas que se trata de Sowerbyella crassisculpturata. El color y la forma de la base de los apotecios no aclara mucho. Habria que ver la base para ver si el apotecio es ampliamente radicante (S.radiculata ) o posee una pequeña fijacion al substrato (en ese caso S.crassisculpturata). La dimension esporal no parece ayudar mucho en estos dos casos, ya que se solapan las medidas.
En cambio  el color de los apotecios puede ayudar bastante, ya que  S,radiculata presenta tonos mas vivos y citrinos, frente a S,crassisculpturata que tiene tonos menos vivos.

Puedes consultar un articulo mio sobre esta especie en Researchgate.net

https://www.researchgate.net/publication/348606922_Sowerbyella_radiculata-Boletin_Asociacion_Micologica_Zamorana_n_20-pg11-17

Un cordial saludo
Augusto Calzada
Malcolm Greaves, 20-01-2021 20:11
Malcolm  Greaves
Re : Sowerbyella radiculata?
Thanks for the confirmation and extra information Augusto.