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Michel Hairaud
Bonjour à tous/Hi to everyone I am passing along
15-12-2025 15:48
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Melanospora cf. lagenaria on old, rotting, fallen
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Unknown anamorph found on the ground in coastal sa
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Small clavate hairs, negative croziers and IKI bb
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indet. Rutstroemiaceae sp. on unk. fallen leavesMc
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ITS sequences from the following two collections B
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Danny Newman
indet. Rhytismataceae on oak leafnear Purchase Roa
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.