14-07-2025 11:20
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
16-07-2025 17:34
Bernard Declercq
Hello,I have trouble distinguishing above mention
16-01-2023 21:31
Riet van Oosten
Hello, Nearby the find of Calycina claroflava on
14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de
14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest
14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae
14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari
12-07-2025 16:45
Thierry Blondelle
Bonjour à tous,J'avais d'abord pensé à des stro
Cistella on leaves
Marja Pennanen,
18-06-2016 10:48
I found these whitish, about 0,2-0,3 mm wide fruitbodies today on leaves of possibly Ribes nigrum.
The spores are about 7-9x2.
The asci are about 35-45x5-7, IKI blue and the paraphysesare a bit lanceolate, about 2-3 wide.
The hairs seems to belong to Cistella, they are nearly all the way coarse, about 20-50x3-6. Their shape varies much.
The species on leaves, that I have definitions, have hairs either coarse on the top or are septate...
Any fresh ideas?
Summer has arrived even here in northern Europe: Marja
Marja Pennanen,
16-07-2017 16:26
Re : Cistella on leaves
Hello,
I got to come back to this in my opinion even common species here, because I've seen it a lot at different places. I have changed my opinion of the genus. Now I suppose it is a Fuscolachnum.
The apos can be 0,6 mm wide, they come quite flat, when older.
The hairs on the underside are brown. They may reach even the lenght of 70 micrometers. Paraphyses are not very lanceolate, sooner filiform.
The closes one is F. borealis, but these hairs are seldom septate and Ribes is not wery close to Juniperus.
Any fresh opinions?
Marja
I got to come back to this in my opinion even common species here, because I've seen it a lot at different places. I have changed my opinion of the genus. Now I suppose it is a Fuscolachnum.
The apos can be 0,6 mm wide, they come quite flat, when older.
The hairs on the underside are brown. They may reach even the lenght of 70 micrometers. Paraphyses are not very lanceolate, sooner filiform.
The closes one is F. borealis, but these hairs are seldom septate and Ribes is not wery close to Juniperus.
Any fresh opinions?
Marja
Hans-Otto Baral,
16-07-2017 21:04
Re : Cistella on leaves
Yes, Fuscolachnum seems very probable. And you can exclude Rubus as host? F. misellum?
Marja Pennanen,
17-07-2017 13:32
Re : Cistella on leaves
Dear Zotto,
these certainly grow on Ribes nigrum leaves, on the uncerside, where exists yellow spots (resinous).
I have found F. misellum on Rubus idaeus leaves and they have an orange shade, which these do not have. Besides the microscophy of these is bigger and these have not enought septas at hairs.
F. borealis has been found on green needles of Juniperus communis, aren't they resinous...
Marja
these certainly grow on Ribes nigrum leaves, on the uncerside, where exists yellow spots (resinous).
I have found F. misellum on Rubus idaeus leaves and they have an orange shade, which these do not have. Besides the microscophy of these is bigger and these have not enought septas at hairs.
F. borealis has been found on green needles of Juniperus communis, aren't they resinous...
Marja