Accès membres

Mot de passe perdu? S'inscrire

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

« < 1 2 3 4 5 > »
Two on Pinus sylvestris cones
Jenny Seawright, 19-02-2015 15:06
Jenny SeawrightHello all,

I found some productive cones of Pinus sylvestris on a coastal heath but, once again, having problems with identification.

The first were perithecia, no hairs or setae present but some appeared to have slightly elongated necks. Spores were brown, 3-septate 16-20 x 6.6-7µm with narrow paraphyses. Some spores had lighter end cells.
Possibly Mytilinidion decipiens, though most references i've found to that have been from Juniper?

The second was erumpent - large brown spores with a germ slit not extending full length, 37-44 x 15-20 µm, no asci or paraphyses visible.

Help appreciated,
With regards
Jenny


  • message #33914
  • message #33914
  • message #33914
  • message #33914
Christian Lechat, 19-02-2015 16:33
Christian Lechat
Re : Two on Pinus sylvestris cones
Hi Jenny,
the second species could be Sphaeropsis sapinea.

Regards,
Chirstian
Björn Wergen, 20-02-2015 01:22
Björn Wergen
Re : Two on Pinus sylvestris cones
Hello Jenny,

If the asci of the first one are primarily biseriate, it can be Melanomma fuscidulum. Otherwise the common M. pulvis-pyrius may also be a suggestion. 

Regards björn
Jenny Seawright, 20-02-2015 12:40
Jenny Seawright
Re : Two on Pinus sylvestris cones
Thank you Christian and Björn, Sphaeropsis sapinea looks very probable for the second.

Most asci of the first were uniseriate but taking into account the spore size and presence of some (but not all) spores with pale end cells could Melanomma subdispersum be a possibility, or is that species specific to Betula?

With regards,
Jenny
Björn Wergen, 20-02-2015 13:09
Björn Wergen
Re : Two on Pinus sylvestris cones
Well I do not think that M. subdispersum occurs on Pinus cones, as it is described mostly from Betula and Sorbus (Sivanesan 1984). M. pulvis-pyrius can surely have your meassured spore sizes and is very common on various hosts.

By the way: do you observe spores and asci under x600? Its not x1000, spores look so small that I first thought they ARE small.

regards,
björn
Jenny Seawright, 20-02-2015 14:45
Jenny Seawright
Re : Two on Pinus sylvestris cones
Worse than that - x 400!