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19-02-2021 20:07

Enrique Rubio Enrique Rubio

These small, white, gregarious, broadly sessile ap

16-02-2021 19:19

Enrique Rubio Enrique Rubio

Hi againThese ascomata grew on corticated wood of

23-02-2021 02:05

Lepista Zacarias

Dear all,I would like to know the correct identifi

23-02-2021 01:27

Lepista Zacarias

Dear all,I would like to identify the fungus growi

23-02-2021 18:36

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte de Fraxinus, en compag

18-03-2019 23:10

Patrice TANCHAUD

Bonsoir, récolte réalisée sous pins (seul coni

19-02-2021 11:54

Jan Eckstein

Hello, I am looking for a copy the protologue of

20-02-2021 21:45

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Connaissez-vous ce champ

22-02-2021 11:46

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

21-02-2021 19:27

Sven Heinz Sven Heinz

Hello, i am looking for New taxa and combinations

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White apothecia on Pseudotsuga
Enrique Rubio, 19-02-2021 20:07
Enrique RubioThese small, white, gregarious, broadly sessile apothecia, 0.2-0.3 mm in diameter, with glabrous margins, grew among algae and liverworts on corticated wood of Pseudotsuga menziesii near the sea.
The asci are ventricose, slightly dextrinoid in IKI, with croziers and a broad, very bluish apical apparatus in IKI, and contain eight spores already septate even inside the asci. The paraphyses are moniliform near the apex and the marginal hairs are similar and closely agglutinated.
It doesn't look like a Hyaloscypha, but I couldn't say to which genus it might belong, perhaps it could be an ascolichen?

Many thanks again

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  • message #67542
  • message #67542
  • message #67542
Hans-Otto Baral, 19-02-2021 21:02
Hans-Otto Baral
Re : White apothecia on Pseudotsuga
Yes, it is an ascolichen. Dimerella pineti or so, now Coenogonium.

The entire asci are reactive, I see a faint reddish but after KOH this should react blue. The spore surface probably turns lilac in CRB.

Typical are the paraphyses with dense septation above.
Enrique Rubio, 19-02-2021 21:05
Enrique Rubio
Re : White apothecia on Pseudotsuga
Thanks a lot, Zotto.
It seems to match well with what you say.