Accès membres

Mot de passe perdu? S'inscrire

24-10-2019 05:28

Gao Hanxing

Dear all, I am looking for the following document:

24-10-2019 00:41

Yannick Mourgues Yannick Mourgues

Bonsoir. Je cherche l'inspiration avec cette esp

22-10-2019 00:02

Yannick Mourgues Yannick Mourgues

On Fagus decorticated wood near a stream. Diametr

23-10-2019 21:58

Castillo Joseba Castillo Joseba

en caña de hortiga A ver si hay alguna sugerenci

23-10-2019 21:08

Castillo Joseba Castillo Joseba

en madera podrida hundida en tueberaA ver si hay a

23-10-2019 13:22

Castillo Joseba Castillo Joseba

Del sabado pasado  en madera sin identificar,  e

23-10-2019 12:35

Castillo Joseba Castillo Joseba

Del pasado domingo, sobre  corteza de Fagus o Cor

21-10-2019 12:53

Castillo Joseba Castillo Joseba

Del pasado Jueves en bosque de piceas, a 1250 m. d

21-10-2019 19:51

Mirek Gryc

HelloI warmly ask for your opinion on this collect

17-10-2019 18:54

Angel Pintos Angel Pintos

Anybody has the present article?Hughes, S.J. (1953

« < 1 2 3 4 5 > »
Hymenoscyphus s.l. ?
Edvin Johannesen, 14-09-2019 18:16
Edvin Johannesen
Rather large apothecia (up to 12 mm) on dead wood, slightly more ochraceous than the photos indicate, excipulum whitish, scurfy/warted. Stem lacking or rudimentary. Spores 17-18 x 5 microns, with several guttules at each end (in water), paraphyses cylindrical, multiguttulate.

Suggestions?

Thanks.
  • message #59262
  • message #59262
  • message #59262
Edvin Johannesen, 14-09-2019 18:20
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Misroscopic features.
  • message #59263
  • message #59263
  • message #59263
  • message #59263
  • message #59263
Hans-Otto Baral, 14-09-2019 21:23
Hans-Otto Baral
Re : Hymenoscyphus s.l. ?
oh with so few data it is difficult.  Phaeohelotium epiphyllum would be my guess, because the spores look homopolar, but at least the croziers should be verified.
Edvin Johannesen, 15-09-2019 00:37
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Thanks, I will have a closer look tomorrow.  Can Ph. epiphyllum grpw on dead wood?
Michel Hairaud, 15-09-2019 08:18
Michel Hairaud
Re : Hymenoscyphus s.l. ?

Hi Edwin, and Zotto,


Are the spores actually too long for H. conscriptus ?


 


AMitiés. Michel


 

Edvin Johannesen, 15-09-2019 11:19
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Here are some ascus bases, in water, phase contrast.
  • message #59283
  • message #59283
  • message #59283
Hans-Otto Baral, 15-09-2019 21:47
Hans-Otto Baral
Re : Hymenoscyphus s.l. ?
I don't think H. conscriptus, the spores are not scutuloid. Asci obviously have croziers. The pustules on the outside seem to me to fit epiphyllum. The apothecial stalk probably are always very short?

P. epiphyllum may grow on leaves and fruits as well as on all kinds of wood.
Edvin Johannesen, 16-09-2019 10:33
Edvin Johannesen
Re : Hymenoscyphus s.l. ?
Thanks a lot, Zotto. I will study the specimen in that context :)