11-02-2026 22:15
William Slosse
Today, February 11, 2026, we found the following R
12-02-2026 14:55
Thomas Læssøehttps://svampe.databasen.org/observations/10581810
11-02-2026 19:28
Lothar Krieglsteiner
on small deciduous twig on the ground in forest wi
25-04-2025 17:24
Stefan BlaserHi everybody, This collection was collected by JÃ
10-02-2026 17:42
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me donner
10-02-2026 18:54
Erik Van DijkDoes anyone has an idea what fungus species this m
09-02-2026 20:10
Lothar Krieglsteiner
The first 6 tables show surely one species with 2
09-02-2026 14:46
Anna KlosGoedemiddag, Op donderdag 5 februari vonden we ti
Sur Ombellifère
Michel RIMBAUD,
28-02-2012 12:10
JIl y a une semaine j'ai mis en chambre humide une tige de grosse ombellifère morte (Heracleum ?).
J'observe une colonie de minuscules petites billes noires sur un stipe fin.
Ces têtes noires sont liquides, comme de l'encre noire.
Au microscope j'observe 2 sortes de spores :
- des spores cylindriques noires, à 2 guttules, 3,8 x 16 µ, libres dans le milieu.
- des spores larmiformes hyalines, 5 x 11,8 µ disposées en étoiles comme les pétales d'une fleur, qui me font penser à un Botrytis (?).
Quelqu'un connait-il ce champignon ?
Merci d'avance.
Michel.
Chris Yeates,
28-02-2012 13:00
Re : Sur Ombellifère
bonjour
C'est une espèce de Stachybotrys. Pour nommer l'espèce, il serait utile de connaître les dimensions des conidies et si elles ont toute ornementation.
amitiés
Chris
this is a species of Stachybotrys; to take it to species level one needs to know the dimensions of the conidia (which you have given) and also whether they are ornamented. Species of this genus are frequent colonisers of umbellifers in late winter into spring - Heracleum being a favoured host
Chris
C'est une espèce de Stachybotrys. Pour nommer l'espèce, il serait utile de connaître les dimensions des conidies et si elles ont toute ornementation.
amitiés
Chris
this is a species of Stachybotrys; to take it to species level one needs to know the dimensions of the conidia (which you have given) and also whether they are ornamented. Species of this genus are frequent colonisers of umbellifers in late winter into spring - Heracleum being a favoured host
Chris
Chris Yeates,
28-02-2012 13:25
Re : Sur Ombellifère
looking again at this I suspect it is most likely to be Stachybotrys cylindrospora; this should show some degree of ornamentation - you should be able to see longitudinal striations on the conidia (especially under oil immersion)
Chris
Chris
Michel RIMBAUD,
28-02-2012 13:39
Re : Sur Ombellifère
Hello Chris,
before you 2 nd message arrival I was re-examing my specimen and searching Stachybotrys in Ellis.
Me too I arrived on S.cylindrospora, I agree with you.
The conidiophore is about 5 x 80 µ.
When examining conidia x 100 under immersion I saw (very faintly) somme longitudinal striations, particularly at the ends of conidia, too faint for a good photo, sorry.
Thank you for your help.
Michel
before you 2 nd message arrival I was re-examing my specimen and searching Stachybotrys in Ellis.
Me too I arrived on S.cylindrospora, I agree with you.
The conidiophore is about 5 x 80 µ.
When examining conidia x 100 under immersion I saw (very faintly) somme longitudinal striations, particularly at the ends of conidia, too faint for a good photo, sorry.
Thank you for your help.
Michel