23-03-2026 20:16
Miguel Ángel Ribes
Good eveningI'm unable to identify this Coprotus o
21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
20-10-2017 09:23
Garcia SusanaEste otro crecía en el mismo trocito de madera qu
20-03-2026 16:16
Edvin Johannesen
These 0.5 mm diam. acervuli were breaking through
19-03-2026 19:34
Filip Fuljer
Hello everyone,a few days ago I collected this str
19-03-2026 18:25
William Slosse
Good evening everyone, On 18/03/26 I found a few
Black Asco Embedded in Stem of Urtica dioica
Peter Thompson,
13-09-2016 13:36
I have found groups of a black ascomycete immersed beneath the epidermis of a dead stem of Urtica dioica. They have short ostioles which protrude just above the surface of the host.
The hyaline spores measure between 17.0 to 18.75 x 3.75 to 5um. They have between one and six guttules and the surface shows longitudinal striations. Apparantly no septa.
The 8-spored asci are narrow, with spores in one line. The ascus tips do not react to Melzers.
I have attached a photo of the fruit bodies, including one centre left with the host broken away. Also, photos of the spores and an ascus tip in water and in Melzers.
I do not know a suitable genus, let alone species with these characteristics.
I wonder if anyone has any suggestions?
Thank You,
With Best Wishes,
Peter.
