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26-03-2016 21:03

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un disco verdoso

03-04-2016 22:25

Illescas Tomás Illescas Tomás

Buenas noches: El pasado 243-2016 recolecté en u

02-04-2016 22:02

Thorben Hülsewig

Hi there,yesterday i found on a rotten wood (fagu

03-04-2016 08:42

Christian Lechat Christian Lechat

Hi to all,maybe somebody's got a copy of the follo

03-04-2016 12:48

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,could someone send me following paper, pleas

03-04-2016 10:11

Castillo Joseba Castillo Joseba

Muestra en madera de AcaciaEsporas muy escasas y d

18-03-2016 09:50

Joop van der Lee Joop van der Lee

Found on cow dung. At first I was thinking about S

28-03-2016 15:17

Bernard CLESSE Bernard CLESSE

Bonjour à tous,Que pensez-vous de cet Ascobolus t

01-04-2016 21:12

Angel Pintos Angel Pintos

Hello, anbody have:CRANE, J.L. & SHEARER, C.A.

31-03-2016 21:07

Enrique Rubio Enrique Rubio

Hi forum These scattered, more or less inmersed,

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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.