Melaspilea bagliettoana? - Forum ASCOFrance

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Melaspilea bagliettoana?

Gernot Friebes, 13-05-2025 12:32

Hi,

I found this one on a Picea abies branch. It looks like it might be Melaspilea bagliettoana, or at least close to it. The ascospores are < 15 µm in length. I'd appreciate your opinion on it.

Best wishes,
Gernot

Zdenek Palice, 13-05-2025 15:25

Re : Melaspilea bagliettoana?

Hallo,

have you seen/measured also (over)mature ascospores that should be getting brown. They would be expectingly longer and could direct you to Melaspile(ell)a proximella. I collected some specimens from Abies/Pinus mugo branches as well as bark of Picea that are sometimes on the lower spore limit for M. proximella but I filed them arbitrarily under M. proximella because M. bagliettoana is presented as a species of (nutrient-richer) bark of deciduous trees like Fraxinus or Populus tremula

Zdenek

Martin Bemmann, 13-05-2025 15:29

Re : Melaspilea bagliettoana?

Hi Gernot,

what else? The other species in question with spores having bipolar setae, Melaspileella proximella, has larger spores with more(?) setae: https://italic.units.it/index.php?procedure=taxonpage&num=2647

Grüße

Martin

Gernot Friebes, 13-05-2025 20:12

Re : Melaspilea bagliettoana?

Thank you, Zdenek and Martin.
I did not see any overmature ascospores.
I excluded M. proximella mostly because of the ascomata which are lirelliform hysterothecia in my material, quite different from typical M. proximella as far as I am aware.
On the other hand, I have not found any records of M. bagliettoana on coniferous wood. But maybe it does switch hosts occasionally...

Best wishes,
Gernot

Martin Bemmann, 13-05-2025 20:53

Re : Melaspilea bagliettoana?

M. bagliettoana is reported from Pinus several times in Korea: https://www.researchgate.net/publication/257840645_New_and_noteworthy_lichen-forming_and_lichenicolous_fungi_2

Gernot Friebes, 14-05-2025 12:34

Re : Melaspilea bagliettoana?

I missed that, thank you. In that case I think M. bagliettoana is a reasonable name for this collection.

Best wishes,
Gernot

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