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
17-03-2026 10:09
François Freléchoux
Bonjour, Voici la description rapide d'un petit d
19-03-2026 17:50
Enrique Rubio
Hi to everybodyThese thiny, blackish pseudothecia
18-03-2026 13:09
Khomenko Igor
I recently examined Celtis occidentalis branches
Found on cow dung.
It looks as if it developes two kinds op conidia's circular and ovel shaped on two places of the stem.
Circular conidia's are covered with wrats and the oval conidia's are not.
Stem: hyaline; 420-450x3-3.5um; septated, with two conidia origins; distance between origins 13-14 um; stem can be branched.
Oval conidia's: 7-8x2.5-3.5 um
Circular conidia's: 6-7 um in diameter.
the 'hyphomycete' with the elongate conidia looks very like Gonatobotrys simplex (anamorphic Melanospora damnosa (Sacc.) Lindau), a species which is often found associated with other fungi. Your photo's show these conidia both on the apical and the intercalary swellings.
The globose conidia I don't know about - are you absolutely sure only one fungus species is involved here? Might these globose conidia be "strays".
cordialement
Chris
Hello Chris,
You probably may be right that we do have two different species, one with elongated codidia's and one with globose conidia's.
The stem with elongated conidia's does not have an intercalary swelling underneath the apical one, and the is branched.
The stem with globose conidia's is not branched, but the photo's also show elongated originating from the intercalary swelling.
On the other hand the last photo gives the impression that the elongated conidia's are attached to the bulbous thickening of the stem.
The photo of the species on dung, although not good in focus, clearly shows globose conidia's on top of the stem and a bunch of conidia's beneath the top not positively identified as being elongated or globose.
I will have a look for more species hopefully solving the identification problem.
Joop
Chris