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Arcyria spp. & possilby Didymium

 
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Ken Ramos



Joined: 27 Jul 2006
Posts: 6997
Location: lat=35.4005&lon=-81.9841

PostPosted: Sat Jul 08, 2017 7:26 am    Post subject: Arcyria spp. & possilby Didymium Reply with quote

Arcyria spp. Rutherford Co. WNC, on hardwood substrate.




Didymium spp. (possibly Think ) on hardwood substrate. Rutherford Co. WNC




All images: Canon EOS 7D w/Sigma f/2.8 EX DG 105 mm macro w/Canon 250D close-up lens f/18 @ 1/200 sec. ISO 100 Canon 430EXII Speedlite PP: Photoshop Elements 14
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Pitufo



Joined: 21 Jun 2015
Posts: 130
Location: United Kingdom

PostPosted: Sat Jul 08, 2017 12:00 pm    Post subject: Reply with quote

Nice myxos Ken Smile

The first one could be Arcyria incarnata (or major) - I'm just in the process of photographing A. incarnata myself.. not as successfully as you so far..)

The second could be Didymium but you would need to put some of those surface calcium deposits under the microscope and look for star-shaped crystals..

Cheers,

John
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Pitufo



Joined: 21 Jun 2015
Posts: 130
Location: United Kingdom

PostPosted: Sat Jul 08, 2017 1:49 pm    Post subject: Reply with quote

Here are some young Arycria incarnata just beginning to expand (studio shot).



Also a closer look at the capillitium under the microscope (x1000)

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JohnKoerner



Joined: 27 Sep 2014
Posts: 85
Location: San Dimas, CA

PostPosted: Sat Jul 08, 2017 2:10 pm    Post subject: Reply with quote

Super images, Ken.
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Ken Ramos



Joined: 27 Jul 2006
Posts: 6997
Location: lat=35.4005&lon=-81.9841

PostPosted: Sat Jul 08, 2017 2:16 pm    Post subject: Reply with quote

John wrote:

Quote:
The second could be Didymium but you would need to put some of those surface calcium deposits under the microscope and look for star-shaped crystals..


Interesting. I did not know that about the crystals, all that I have ever heard made reference to are the spores for positive ID. Like the capillitial image you've included. I have an oil immersion but seldom use it because I can usually resolve most everything, with the exception of spore characteristics, with a 40X dry objective. Thanks for the crystal info, I need to gather some samples and have a look. Very Happy
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Ken Ramos



Joined: 27 Jul 2006
Posts: 6997
Location: lat=35.4005&lon=-81.9841

PostPosted: Sat Jul 08, 2017 2:19 pm    Post subject: Reply with quote

JohnKoerner wrote:

Quote:
Super images, Ken.


Thanks John Smile
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Ken Ramos



Joined: 27 Jul 2006
Posts: 6997
Location: lat=35.4005&lon=-81.9841

PostPosted: Sat Jul 08, 2017 3:38 pm    Post subject: Reply with quote

John wrote:

Quote:
...look for star-shaped crystals..


These would not happen to be oxalates would they? Think
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