more unknowns

jc maccagno · Post by **jc maccagno** » Sun Jan 02, 2011 3:40 pm

Collected from moss on my patio Kamloops BC Meijii 40 X objective photographed with PaxCam ARC

Mitch640 · Post by **Mitch640** » Sun Jan 02, 2011 6:35 pm

Interesting structures. I have seen something very like this posted here in the last few months, but have forgotten just what it was. You might look through the threads going back a ways.

jc maccagno · Post by **jc maccagno** » Sun Jan 02, 2011 7:25 pm

Similar structures were posted on Dec 9 2010 by Franz

BJ · Post by BJ » Mon Jan 03, 2011 11:18 am

Hi,

I´ve got the answer at last !!

I am really pleased with myself this time!

It is the cleistothecium of a fungus in the genus Phyllactinia.

This genus is pathogenic on tree leaves causing "powdery mildew".

The cleistothecium is a reproductive structure. It falls off the leaf and parachutes down using the appendages as a parachute. The fungus usually overwinters in this stage and then releases ascospores in Spring to infect the new opening leaves. The spores germinate producing hyphae which enter the leaf through the stomata.

See these websites for a bit more info:

http://en.wikipedia.org/wiki/Phyllactinia

http://botany.upol.cz/atlasy/system/gal ... %20fraxini

http://pnwfungi.org/featuredfungigallery.htm ....(see featured fungus #20)

I was way off track when trying to work out what it was with Franz´s specimen. The clue that got me thinking it was a fungus was what look like short hyphae in the first photo in this thread.

Ciao
Brian

Mitch640 · Post by **Mitch640** » Mon Jan 03, 2011 11:24 am

I could not find Franz's thread, but it is not the one with the black round ball and 6 spokes coming out of it. It looked exactly like your shot in the first post above, glass laboratory beakers in different positions. Exactly like that. Can't figure out where it went, cause I spent almost an hour searching for it.

Maybe Franz will drop in and tell us, if we are remembering right and it is even his image.

rjlittlefield · Post by **rjlittlefield** » Mon Jan 03, 2011 1:27 pm

For reference, Franz's image is here: http://www.photomacrography.net/forum/v ... hp?t=11657 .

That thread is already cross-linked to this one.

--Rik

Franz Neidl · Post by **Franz Neidl** » Mon Jan 03, 2011 2:16 pm

Hello Brian, jc maccagno and Rik,

this is an adventurous story! Thank you very much for your help!
I never thought it could be a fungus.

Franz