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Hi to everybody
I would know your opinion about theis Lachnum species growing on Fagus leaves at the sea level
Please read the attached pdf
Many thanks again
Hi Zotto
Maybe the crystals are not true crystals but resinous exudate or even a mixture of both: exudate with minute acicular crystals because they are very easily removed of the tips and I cannot see free released crstals in the mountings.
Anyway, lacking crystals, do you know a foliicolous Lachnum with these characters?
Thanks in advance
Sorry, I overlooked your third plate in the pdf. So clearly the material stains in CRB. This tells for a resinous exudate.
Hi Zotto
Anyway you don't know this species, isn't?
Zotto
Hi Enrique and Zotto ,
Did you compare this collection to Lachnum '' gemmarum'' ? But for the resinaceous lumps around hair tips, I find their macro and micro features quite comparable .
Enrique, did you also search the leaves buds envelops where gemmarum is supposed to grow ?
Amitiés Michel
good idea! But I know L. gemmarum only without VBs.
Zotto
Hi Michel
Wellcome to the matter! Yes. Macroscopically are quite similar but Zotto's pics show us more celled hairs narrowly attenuated towards their tips. Unfortunately I have never studied this common species on Fagus buds but I think the hairs of my collection are more regulary cylindrical only 1-2 septate and the paraphyses have Vbs as Zotto says.
excuser me for giving my opinion on this matter too.
I think it is more a Dasyscyphella although I can not find a matching species, the hairs are not typical but judging your photos show in CB Lactophenol some glandular apical cells. This is also matching with the dimorphism in the ascospores which is a feature of Dasyscyphella as well is the resinous exudate.
This gemmarum looks indeed somewhat related.
Stip
Hi Stip. Do you think this is a Dasyscyphella with so fully granulate and regular hairs? I think these hairs are not very typical for this genus.
Thanks
I need to object here that your suggestion sounds interesting but I never met a species of Dasyscyphella with VBs. Who knows...
Anyhow, I remember such excretions to have seen sometimes in Lachnum. In my pics I found some exudate on hairs of L. reynoutriae, for instance.
Zotto
I was pointing to the similarities with Dasyscyphella, I had never seen a Lachnum with exudate. This looks for me as an intermediate species between Genera, it would be interesting to get a sequence out of it.
cheers
Stip