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15-08-2015 16:14

Blasco Rafael Blasco Rafael

Hola, he visto esta Sporormiella sobre excremento

15-08-2015 17:23

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra y no se por donde mirar,

14-08-2015 00:43

Malcolm  Greaves Malcolm Greaves

We have had a lot of dry weather lately and a log

12-08-2015 13:48

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra desde hace un mes en casa

14-08-2015 10:09

Castillo Joseba Castillo Joseba

de pequeño tamañoNo se por donde comenzarJoseba

14-08-2015 01:00

Claude Kaufholtz-Couture Claude Kaufholtz-Couture

Bonjour ! Je viens d'étudier Pulvinula carbonari

14-08-2015 10:13

Castillo Joseba Castillo Joseba

estas pequeñas setas,   a  las que no he apreci

22-08-2014 18:01

Bernard Declercq Bernard Declercq

Hallo to everybody,Does anyone have following docu

12-08-2015 23:39

Elisabeth Stöckli

Bonsoir,Trouvé sur bois mort de Pinus, 0.25-0.55m

13-08-2015 21:51

Andreas Gminder Andreas Gminder

Hello to all - especially Zotto ;-) an Orbilia wi

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Stictis species determinations
Danny Newman, 23-12-2013 23:42
Danny NewmanHello AscoFrance,

I wish to apply responsible names to the observations of Stictis over at MushroomObserver.  The ascomycete references consulted in working up this observation:

http://mushroomobserver.org/156118

only contain 2-4 species, whereas Sherwood's research treats dozens.  I have read Hans' laments of the difficulties of this genus on other forum posts.  My impression is that no Stictis species is identifiable without microscopy, and that variables present in preservation and analysis (ie: vital vs. non-vital taxonomy) often make species determinations difficult to impossible even with microscopy.  That being said, I question whether any of the following observations:

http://mushroomobserver.org/observer/observation_search?pattern=stictis

can be confidently identified to species.

As a side note, I'm curious to know if PDF copies of Sherwood's Ostropalean articles in Mycotaxon are available.

Any and all help, as always, is greatly appreciated.

Happy Holidays,

-Danny
John Plischke, 24-12-2013 03:40
John Plischke
Re : Stictis species determinations

Hello Danny,


I will send you the article.  I may have a few microscope photos of the ones I found here in PA, If i can locate them I will put them on mushroom observer.

Hans-Otto Baral, 24-12-2013 09:05
Hans-Otto Baral
Re : Stictis species determinations
Hi all

yes, I am sure that we will not proceed unless we do a detailed study on every collection, including sections of the marginal lobes, detailed evaluation of iodine reaction (Lugol, different colours when iodine enters the hymenium),  living spores with depiction and measurements of individual cells and their contents, ascus croziers, paraphysis apices.

In the case of Stictis (121912), I feel that the cystidia and spores come from the big basidiomycete associated with the Stictis.

Zotto