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A rare ascomycete (2)


A rare ascomycete (2)
Photo Information
Copyright: Dmitry Gavryushin (Osmeterium) Silver Star Critiquer/Gold Note Writer [C: 10 W: 0 N: 154] (517)
Genre: Fungi
Medium: Color
Date Taken: 2006-11-28
Categories: Fungi
Camera: Nikon D70S, Sigma 105mm + Raynox DCR-250
Exposure: f/22, 15 seconds
Details: Tripod: Yes
Photo Version: Original Version
Theme(s): RARE or SIGNIFICANT contributions to TN 4 [view contributor(s)]
Date Submitted: 2006-11-30 12:46
Viewed: 1969
Points: 26
[Note Guidelines] Photographer's Note
Holwaya mucida (Schulzer) Korf & Abawi (1971) (Fungi, Ascomycota, Ascomycetes, Leotiomycetidae, Helotiales, Helotiaceae). Wet forest, Ozhigovo station (ca. 55km SW of Moscow).

Exceptionally warm November this year still urges me to leave for the woods. Once I decided to re-visit the site where I found the anamorphs (imperfect stage) of Holwaya mucida, called Crinula caliciiformis. And, much to my suprise, in two days I was able to find two colonies of that fungus, and with teleomorphs, too! The maximum measured diameter of apothecium was 11 mm. The majority of them were located on a lower surface of a dead medium-size linden (Tilia cordata), closer to the soil. Anamorphs were also present, reaching maximum size of 8 mm.

And now some additional information. More frequently one can find clavate imperfect stage (anamorph) producing conidial spores. It is clavate, up to a couple of dozen mm high, with a black stipe and yellowish-whitish hyaline head. The perfect stage develops sporocarps of a similar size, in the shape of an inverted cone, dark brown-olive coloured, almost black; with upper surface flat, folded-wrinkled, sometimes shallowly cup-like, finely wrinkled; the stalk gradually tapering, conelike, with surface finely verrucose-wrinkled.

More general information. In the Ascomycota two fundamentally different stages in the life cycle can be distinguished: the anamorph state during which the fungus reproduces asexually, and the teleomorph state of sexual reproduction. The combination of both states is sometimes called the holomorph.
Since the anamorph and teleomorph often do not resemble each other superficially at all, until the late 20th century it was often not possible to know that the two stages belonged to the same species. This led to the curious situation, which is still accepted in mycological taxonomy, that two stages in the life cycle of exactly the same fungus have been allocated different species names, so the fungus has two names. Today however molecular methods lead to the discovery of ever more links between these 'species' and so the former separation of the asexual stages into their own class, the Fungi Imperfecti (Deuteromycota or mitosporic fungi) has now become obsolete.

Sources:

http://en.wikipedia.org/wiki/Ascomycota
http://www.mycolog.com/CHAP4a.htm
http://www.grzyby.pl/gatunki/Holwaya_mucida.htm

And, finally, I would like to explain what in this fungus has drawn so much of my attention. According to my source (Eugeny Popov, a mycologist from St. Petersburg, pers. comm.), this fungus is extremely rare in Russia. It was originally found in Tsarskoye Selo in the beginning of 19th century, although that record was rather dubious, then in 1926 in Krasnye Gory, again near St. Petersburg, and in 2004, Zhiguli Reserve, Samara region. So it's the fourth record for Russia and the first find in Moscow region.

I used a Manfrotto 190B tripod+141RC head+Velbon Macro Slider
RAP, Lycaon, falke, JoseMiguel, sily, extramundi, peter_stoeckl, SkyF, TAZ, jcoowanitwong, nainnain, JORAPAVI has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To JoseMiguel: colourOsmeterium 1 12-01 02:42
To falke: composition and view from belowOsmeterium 1 12-01 02:36
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Critiques [Translate]

  • Great 
  • batu Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1087 W: 296 N: 4109] (13900)
  • [2006-11-30 13:46]

Hello Dmitry,
first, you show an informative picture of this Ascomycete. Second, you present a rare species at least for Russia, as you say. I'm no specialist on fungi, so I can't really evaluate your discovery. But it sounds interesting. So, thank you for posting a nice picture of this rare species and for your introductory note.
Best wishes, Peter

  • Great 
  • RAP Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2524 W: 345 N: 2373] (7405)
  • [2006-11-30 14:09]

Una excelsa macro Dmitry por la composición, por la agudeza y colorido captados, el apropiado DOF que brinda además un perfecto fondo de escena.
Me gustan incluso los reflejos creando un efecto lumínico muy agradable.
Atinado encuadre para completar una bella entrega además de tus completas notas, como siempre.
Un cordial saludo desde Buenos Aires... Ricardo

A sublime macro Dmitry for the composition, for the sharpness and captured colors, appropriate DOF that also offers a perfect scene bottom.
I even like reflections creating a very pleasant light effect.
Accurate framing to complete a beautiful post besides your complete notes, as always.
A cordial greeting from Buenos Aires... Ricardo

Excellent picture and most interesting note, that's what we are all waiting for!!

  • Great 
  • falke Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 156 W: 17 N: 458] (1682)
  • [2006-11-30 15:13]
  • [+]

This is a very interesting photo. I am interested in lichens and this fungi reminds me of several species.

However the color in this photo are makes it very special. I can understand that you did not want to have the normal center composition but I think you maybe should have cropped it a bit more. I also would like to see how the fungi looks from below. Is it striped or not?

Thanks for sharing!

Hello Dimitri!
Absolutly an extraterrestrial scene here. The fungus have such a metalic aspect, -despite their organic nature-, that is very pleasant to took at.
Magnificent uncommon color armony.
Congratulations and thank you very much for share,
JM

  • Great 
  • sily Gold Star Critiquer/Gold Note Writer [C: 238 W: 6 N: 391] (1893)
  • [2006-11-30 16:48]

Hi Dmitry!
Interesting little alien, nice macro and details, looks like it's made of metal!

  • Great 
  • TAZ Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2241 W: 47 N: 3167] (10926)
  • [2006-12-01 1:35]

Hello Dmitry,
You offer us a superb close-up for this strange mushroom. The team Sigma + Raynox are good and you manage it very well. The sharpness and DOF are excellent, nice background too.
Congratulations and thanks for sharing.

Hello Dmitry,
stunning discovery, excellent presentation!
With thanks, and best regards,
Peter

  • Great 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2732 W: 74 N: 8956] (30561)
  • [2006-12-01 6:27]

Priwiet Dmitry!

Very interesting note and very interesting picture of this rare fungus. I like composition and shape of main subject, BG is nicely blurred. Autumnal colours looks great. I'm glad that you founded such rarity.

  • Great 
  • SkyF Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2234 W: 188 N: 1912] (8073)
  • [2006-12-01 7:58]

Hello Dmitry,
fabulous close up, the exposure and the sharpness are superp. Very well composed and great POV to get a good look of this rare ascomycete.
TFS..Sky

Hello Dmitry,
It is a great honor to witness this first find of Ascomycetes in Moscow region. Very nice shot of this fungus. Sharp with vibrant color. Also great composition.
JC

hello
tres bonne réussite de cette macro, bonne netteté, bon travail.
bravo et merci du partage
edith

Hola Dmitry,
Excelente toma del ascomycete, buena nitidez donde se aprecian muy bien los detalles. ¿Some book?. Best regards

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