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23-12-2013 23:42

Danny Newman Danny Newman

Hello AscoFrance,I wish to apply responsible names

27-08-2013 21:51

Ralph Vandiest Ralph Vandiest

Hello,Can somebody help me with this one? On dee

22-12-2013 19:31

Rajamaki Martti

Does anyone have any good idea about this mushroom

17-03-2013 19:26

Joop van der Lee Joop van der Lee

During determination of A. Sacchariferus (photo-6)

22-12-2013 21:44

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good evening,could someone give me an advice conce

21-12-2013 21:18

Peter Thompson

Hello Everyone,Does anyone have a key to species i

22-12-2013 18:35

Gilbert MOYNE

Voici une petite espèce récoltée sur brindille

21-12-2013 19:06

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good evening, my friend gave me a collection of th

21-12-2013 21:03

Amadej Trnkoczy Amadej Trnkoczy

Hi! I would appreciate very much if somebody kn

21-12-2013 20:31

Amadej Trnkoczy Amadej Trnkoczy

Hi!Would appreciate very much if somebody knowledg

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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