16-06-2019 19:17
Nicolas VAN VOOREN
On dead stem of Veratrum, numerous dot-like specim
16-06-2019 11:54
Nicolas VAN VOOREN
Hello.Here is a Hymenoscyphus species growing on b
16-06-2019 12:07
Riet van Oosten
Hello, Found by Theo Westra, 13-06-2019 (The Neth
14-06-2019 06:40
Django GrootmyersWhat is this parasite of Cantharellus minor? Found
11-06-2019 01:49
Valencia Lopez Francisco JavierHola amigos...Adjunto fotos de unas supuestas Para
11-06-2019 00:32
Elisabeth StöckliBonsoir, Sur feuilles de ronce (Rubus/roncier à
11-06-2019 16:20
Garcia SusanaHola, He recolectado este asco sobre estiercol, c
12-06-2019 22:42
Ethan CrensonHello all, A friend noticed these tiny fruiting b
Black acervuli with strange brown "phragmo"conidia
Edvin Johannesen,
08-05-2019 17:28
These small, black cushions were collected on a thin twig (presumabley deciduous). Very strange conidia appeared under the microscope (in KOH). The septa appear to be wavy, partly transversal, partly longitudinal, so possibly muriform. Some have a hyaline, apical appendage/pedicel-like structure at one end. In phase contrast a slimy (gelatinous) matrix becomes evident. Are genera like Coryneum or Seiridium possibilities or am I on the wrong track? Suggestions appreciated. Thanks!
Lothar Krieglsteiner,
08-05-2019 17:43
Re : Black acervuli with strange brown "phragmo"conidia
Hello Edvin,
whatever fungus this could be - the "conidia" you show appear as strongly collapsed to me - likely due to age.
They could also be ascospores with the asci already faded (?).
Yours, Lothar
Edvin Johannesen,
08-05-2019 17:54
Re : Black acervuli with strange brown "phragmo"conidia
Thanks, Lothar. In fact, it was collected a months ago and it was studied without drying, but of course, the fungus may have "wintered". It looks pretty fresh, though. I doubt they are ascospores, since several have the appendage (although I guess that doesn't totally rule out ascospores).