Accès membres

Mot de passe perdu? S'inscrire

30-01-2014 22:40

Ralph Vandiest Ralph Vandiest

Hello, On Fallopia japonica I found this species.

29-01-2014 13:08

Ida Bruggeman

Growing on populus-twig. Small asco without defini

29-01-2014 20:17

Joop van der Lee Joop van der Lee

Found on cow dungFruitbody does not have a well de

30-01-2014 12:04

Garcia Susana

Hi allI found these pycnidia growing on Hedera hel

30-01-2014 12:50

SYLVAIN ARD

Bonjour,Si quelqu'un a certaines de ces référenc

30-01-2014 11:21

Gerrit Jansen Gerrit Jansen

Two weeks ago I found a Byssonectria on sandy soil

30-01-2014 10:40

Alain GARDIENNET Alain GARDIENNET

Bonjour, Je recherche la page 38 de : Velenovsk

28-01-2014 13:10

Garcia Susana

Hi I found these apothecia growing on Hedera heli

29-01-2014 21:24

Salvador Tello

Hola.Tengo estos Hymenoscyphus que pienso que podr

29-01-2014 14:34

François Bartholomeeusen

Bonjour à tous, C'est ma première participation

« < 1200 1201 1202 1203 1204 > »
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

  • message #67542
  • 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.