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19-10-2024 16:44

B Shelbourne B Shelbourne

• Macro and habitat suggest Hymenoscyphus (s.s.)

17-10-2024 11:14

Michel Hairaud Michel Hairaud

Bonjour, Voici un Ciboria actuellement présent s

13-10-2024 09:31

Maria Plekkenpol

Hello, I hope someone can help :). On dung of (wil

18-10-2024 18:12

Enrique Rubio Enrique Rubio

Hi to somebodyI have seen that there are some dive

17-10-2024 17:33

Gustaf Fredell Gustaf Fredell

Hello,A while ago I collected this pyrenomycete wh

14-10-2024 23:05

Yannick Mourgues Yannick Mourgues

Hi. I'm looking for the description of Anisomerid

16-10-2024 21:58

Philippe  Larue Philippe Larue

Bonjour à tous, que pensez-vous de cette petite

16-10-2024 12:29

B Shelbourne B Shelbourne

• Chloroscypha was suggested to me, macro and ha

14-10-2024 09:27

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra recogida sobre rama de ha

13-10-2024 12:27

B Shelbourne B Shelbourne

• Macro and habitat suggest Ascocoryne.• The l

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Scutellinia (around patagonica?)
Viktorie Halasu, 05-07-2016 01:49
Viktorie HalasuHello,
I'd like to ask for your help with this small Scutellinia. It was growing on a sandy soil (might be calcareous) among fallen leaves. Locality is warm in general, but this place is on a deeply cut forest path, maybe with a bit colder microclimate.
Marginal hairs short, 131-236 (285) × 16,9-18,3 (20,3) um, simple to bifurcate base, 1-4(-5)-septate.
Spores subglobose, (17,4) 18,1–19,8 (20,4) × (16,1) 16,9–18,3 (18,9) um (live in water), Q = 1-1,1 (1,2), Me = 19 × 17,4 um.
Ornamentation: dense small warts about 0,5 um diam., usually in confluent clusters 0,7-1,7 (2,9) um wide, height 0,4-0,7 um.

The closest species I found in Schumacher and Cahiers FBMDS were S. hyperborea, which has isodiametric non-confluent warts and longer hairs, and S. patagonica, which has much longer hairs. S. subhirtella has more ellipsoid spores.
I'm not sure either, how to interpret the ornamentation, which one is the final one (small standalone warts, or clustered warts).
Thank you in advance.

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René Dougoud, 05-07-2016 09:17
Re : Scutellinia (around patagonica?)
Bonjour,

Je pense qu'il s'agit de Scutellinia patagonica (Rehm) Gamundi Je vous remets en dossiers attachés mes dessins de S patagonica et de S. hyperborea, pour comparaison (j'espèce que les images vont passer).

Cordialement

René
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Viktorie Halasu, 05-07-2016 12:21
Viktorie Halasu
Re : Scutellinia (around patagonica?)
Thank you, Mr. Dougoud,
when comparing my find with your drawings (and, e.g. description given by B.Jeannerot in Ascomycete.org 5(5)), the spore shape, size and ornamentation speak for S. patagonica. However, two characters differ quite a lot: Hairs should be cca three times longer in S. patagonica and so far, I didn't find description of any collection with such a short hairs. From the macrophoto it is clear, that they barely reach beyond the apothecial margin (this excludes possibility, that I made preparation from a piece of margin that was inbetween longer hairs). Or is it still within species variability?

Other thing is its ecology: S. patagonica is referred to the boreo-polar group by Schumacher, collections described by Jeannerot (op.cit.) or Van Vooren (Cahiers de FMBDS) support this placement. This collection is from ca 250-300 m asl. in warm lowland, nordeastern slope, less than 1 km from one of the northernmost localities of a mediterranean orchid Himantoglossum adriaticum.
Unfortunately I didn't try if the perispore loosens or not, I'll check this when I'm at home at saturday. Yao & Spooner describe this feature for british finds of S. patagonica, but not for the neotype.


Other possibility would be S. peloponnesiaca J.Mor., with loosening perispore and ornamentation similar to S. patagonica but shorter hairs. There is another collection from Slovakia, determined as S. peloponnesiaca by S.Glejdura, with short hairs, 4spored asci and from cca 400-500 m asl., but I didn't see any microcharacters illustrated. My collection has constantly 8spored asci. But Schumacher wrote that Moravec's species is just a result of abnormal development with "eaten" hairs and synonymized it under patagonica.
... I guess I have to go there again and try to find more apothecia for a better knowledge of this collection.


update: S. Glejdura identified this collection as S. peloponnesiaca. He published 7 collections from 3 slovak localities, all have consistently short hairs, smaller spores than patagonica, and frequently less than 8 mature spores. There is also a scottish collection (see Yao & Spooner 1996) that would be useful to compare, with smaller spores than patagonica and loosening perispore, alas the hair size is not given.