04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
28-10-2025 19:33
Nicolas Suberbielle
Bonjour à tous,Je voudrais votre avis sur cette r
31-10-2025 09:19
Lothar Krieglsteiner
Can somebody provide me with a file of:Rogerson CT
Psilachnum chrysostigmum
Dragiša Savic,
28-04-2014 09:52
Similar type I found on the stem of Dryopteris filix-mas, photo 3 and 4.
The size of the spores is the same, 5.55 x 1.55
Is it the same or not?
Hans-Otto Baral,
28-04-2014 10:44
Re : Psilachnum chrysostigmum
There are two very close species or varieties, P. chrysostigmum var. versicolor on A. scolopendrium, and P. chrysostigmum var. chr. on various ferns but apparently never on A. scolopendrium.
The difference lies mainly in the guttules in the spores, but you need free living spores to see that.
Zotto
The difference lies mainly in the guttules in the spores, but you need free living spores to see that.
Zotto
Dragiša Savic,
28-04-2014 13:13
Re : Psilachnum chrysostigmum
Thanks Zotto, but this is the maximum of my microscope.
Hans-Otto Baral,
28-04-2014 13:21
Re : Psilachnum chrysostigmum
Not a matter of resolution. The asci and spores of the left specimen are dead, those of the right are living. In the spores of the latter I can see that minute drops are at the ends of the spores. In the former I cannot decide.
Dragiša Savic,
28-04-2014 13:31
Re : Psilachnum chrysostigmum
Yes, the second preparation I did with water, as you have recommended.