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24-07-2015 21:28

Leandro Sánchez Leandro Sánchez

Sous Sálix, 1600 mètres d'altitude, plus de 40 e

21-07-2015 15:32

Steve Clements

Bonjour,Trouvé le 15 Juillet sur fleur morte. Je

24-07-2015 16:25

Peter Thompson

Hello Everyone,I have found some groups of immerse

24-07-2015 12:28

Lepista Zacarias

Hi everyone,Last year I found an ammount of specim

23-07-2015 14:06

Leandro Sánchez Leandro Sánchez

Sur Salix, diamétre max  6-7 mm.KOH -Cordialemen

22-07-2015 23:35

Joaquin Martin

HiCollected about branch in riparian forest, coexi

22-07-2015 16:07

Dartanha Soares Dartanha Soares

Hello to all, I would like to hear your opinion a

22-07-2015 21:55

John Leach

Hello all I found this Calonectria growing on old

22-07-2015 10:50

Gernot Friebes

Hi, I'm looking for help with another peculiar as

22-07-2015 13:31

Thorben Hülsewig

Hi there On the 16.7.15 i found under a rotten wo

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Geoglossum
Malcolm Greaves, 13-11-2015 13:36
Malcolm  GreavesA huge number of these were in short grass on a heathland site near me. They seem to fit with G umbratile except for the short spores which are 50-60µ long.
Would this be within a reasonable range for the species or is there another species I should be looking at?
Thanks
Mal
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  • message #38826
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Michael Beug, 14-11-2015 01:33
Michael Beug
Re : Geoglossum umbratile
Geoglossum umbratile spore size is highly variable (30-90 x 4.5-6.5 microns). The septa in the paraphyses are not constricted while the septa in Geoglossum simile and G. pygmaeum both are constricted. Geoglossum simile and Geoglossum glabrum have paraphyses that are closely septate in the upper portions.
Sabino Arauzo, 15-11-2015 12:40
Re : Geoglossum

The asci, paraphyses and inmature spores guttulation are typical of G. fallax, but shorter spores, as HB6543 of Zotto!


Regards.


Sabino.

Malcolm Greaves, 15-11-2015 21:26
Malcolm  Greaves
Re : Geoglossum
Thanks Michael and Sabino.
Looking at Zotto's great descriptions I think that as I could find no mature spores with more than 7 septae and the paraphyses were quite swollen I think G umbratile is more likely. I will note for future that the spores can be more variable than some descriptions say.
Mal
Iglesias Plácido, 16-11-2015 12:31
Re : Geoglossum
Geoglossum fallax típico.
Malcolm Greaves, 16-11-2015 16:09
Malcolm  Greaves
Re : Geoglossum
Hi Iglesias
I have very little experience of Geoglossum so if this is typical G fallax what differences should I look out for in G umbratile?
Thanks
Mal
Michael Beug, 16-11-2015 18:34
Michael Beug
Re : Geoglossum
My understanding of Geoglossum fallax is that it is notable for its brown rather than black fertile surface color, a finely scaly stipe, gnerally hyaline spores that only tardily become septate and turn smoky, The spores are initially non-septate, then 3-septate and finally 7-12 septa. Paraphyses are 5-6 microns, cylindric, sparingly to moderately septate, not constricted or only moderately constricted at the septa and strongly curved or coiled in the upper part. The paraphyses are very similar to those of G. umbratile. Some collections of G. umbratile are viscid. G. umbratile fruitbodies are dark brown to black