Code: Bot_553/2011_DSC_9794

Habitat: Woodside, mixed wood, predominantly broadleaved deciduous trees, steep south oriented slope, on the border between flysh and limestone rock, half sunny, warm place, exposed to direct rain, average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 625 m (2.050 feet), alpine phytogeographical region.

Substratum: Heavily rotten stump of a large Quercus sp. tree.

Place: Bovec basin, at the foot of Mt. Čukla Mountain, near Plajerjeva skala place, East Julian Alps, Posočje, Slovenia EC

Comments: Growing solitary, approximate pileus dimensions: length 15 cm, width 8 cm, thickness 5 cm, flesh corky yet still dump, upper cortex thickness 1 – 1.5 mm, SP faint of unrecognizable color, bruising chocolate brown.

Nikon D700 / Nikkor Micro 105mm/f2.8 and Canon G11, 6.1-30mm/f2.8-4.5

Species Lists


Left side: bruising brown.
Spore dimensions comparison between G. australe and G. applanatum.

Proposed Names

85% (1)
Recognized by sight
Used references: (1) A.Bernicchia, Polyporaceae s.l., Edizioni Candusso (2005), p 232.
(2) .
(3) G.J.Krieglsteiner (Hrsg.), Die Grosspilze Bade-Würzzembergs, Band 1, Ulmer (2000), p 419.
(4) R.Phillips, Mushrooms, Macmillan (2006), p 306.
(5) .
Based on microscopic features: Spores with two walls, smooth. Dimensions 10.3 (SD = 0.6) x 6.5 (SD = 0.4) micr., Q = 1.6 (SD = 0.12), n = 30. Motic B2-211A, magnification 1.000 x, oil, in water.
Based on chemical features: Smell pleasant mushroomy.
74% (2)
Recognized by sight: ITS sequences from Genbank distinguish G.adspersum (Europe) from G.australe (Australasia)

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= Observer’s choice
= Current consensus


Add Comment
Yes / water only
By: amadej trnkoczy (amadej)
2011-10-17 02:41:46 CST (+0800)

Yes, the picture was enhanced in CS 4 PhotoShop by:
- increasing contrast (using ‘Levels’),
- selective sharpening (‘Find edges’ / ‘Create mask’ / ‘Unsharp mask’ – ruler excluded manually) and
- color correction to get more or less neutral gray background. My scope is cheap ‘made in China’ stuff where color temperature of lighting varies very much depending on lightness set. So, I have to compensate this.
In addition, when spores are scarce I usually copy/paste spores from several pictures into a single one to get 30+ spores on a single picture.

I only use water for mounting. In a small cup of tap water I put a small drop of kitchen detergent to lower surface tension. Can’t find a source where I could buy some contrast material.

Pictures are made using a homemade mechanical adapter, Nikon D700 and an old but good Nikor 50mm/f1.8 lens through the ocular.

About the purple basidiospore
By: ndoll
2011-10-17 02:00:01 CST (+0800)

Was this micro-photograph enhanced with an editing program?

Exactly what type of liquid was used in mounting those spores?

By: amadej trnkoczy (amadej)
2011-10-16 22:11:17 CST (+0800)

I believe.

In your microscopy image,
By: ndoll
2011-10-16 21:42:41 CST (+0800)

what is the purple thing?

Thank you Darvin.
By: amadej trnkoczy (amadej)
2011-09-26 21:08:16 CST (+0800)
By: Darvin DeShazer (darv)
2011-09-26 03:34:45 CST (+0800)

Nicely done! Another top quality post.