Observation 262677: Coccomyces dentatus (J.C. Schmidt & Kunze) Sacc.
When: 2016-11-27
Who: zaca
No herbarium specimen

Notes: An oak leaf with a curious pattern.
I have the feeling that I saw something similar recently, maybe here at MO. Anyone recognizes it?

Images

692458
Quercus leaf.
692683
Some close ups showing pyramidal ascomata.
692890
Microscopy: Section;
692891
Microscopy: Asci;
692892
Microscopy: Asci and spores.

Proposed Names

87% (1)
Eye3 Eyes3
Recognized by sight: Details to be included in a forthcoming comment.
Based on microscopic features

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopy added.
By: zaca
2016-11-29 06:00:57 COT (-0500)
I also recommend a look to
By: zaca
2016-11-28 10:44:06 COT (-0500)

http://www.flickriver.com/search/Coccomyces/
with good photos and microscopy.

Richard Droker observation revisited:
By: zaca
2016-11-28 10:40:57 COT (-0500)

Yesterday I was not able to recall where I have seen a similar infected leaf. I started to make a quick preparation to observe under the scope and saw the asci with fusiform and septate spores inside. Then i move to AscoFrance and search for similar observations. After sometime I saw the one at
http://www.ascofrance.com/search_forum/6158
including a pdf file with similar microscopy:
http://www.ascofrance.com/uploads/forum_file/7814.pdf
With the name of the species – Coccomyces dentatus – I was able to rediscover the beautifull observation by Richard Droker that I mentioned in my previous message.

See …
By: zaca
2016-11-28 10:24:41 COT (-0500)

Created: 2016-11-27 17:31:17 COT (-0500)
Last modified: 2016-11-30 06:35:33 COT (-0500)
Viewed: 74 times, last viewed: 2017-07-08 03:31:08 COT (-0500)
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