Observation 130282: Dacrymyces stillatus Nees
When: 2013-03-16

Notes: Growing on barkless logs, gregaiously.

Spores ~15 × 5 microns, with 1 or 3 septa. The basidium in picture was 50 microns long.

This species should have “arthrospores” (in chains), which I was unable to find.

Can Dacrymyces have cystidia? See last photo.

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OK, guys
By: Sava Krstic (sava)
2013-03-17 12:47:05 COT (-0500)

I was not searching for clamps with determination. Just added two crops from the lousy microscopy done yesterday. In the first, there might be a clamp visible. The second shows the curved spore ends; you tell me if these are apiculi.

Spore thinkness?—I don’t know. As for “sharply defined margins”, this feature is absent in more mature specimens, which become all wrinkled. Unfortunately, I don’t have a photo to show this.

The collection is dried now; I would need to go back to answer your questions more reliably.

Thank you!

No, this is not stillatus.
By: Gerhard Koller (Gerhard)
2013-03-17 12:35:35 COT (-0500)

The fruitbodies are solitary and scattered, stillatus is confluent and with not so sharply defined margins.
Are the spores thick- or thinwalled (very important!) and are the hyphae clamped or not (also very important!)?

clamps? apiculate spores?
By: Danny Newman (myxomop)
2013-03-17 12:08:50 COT (-0500)
No, haven’t seen this paper
By: Sava Krstic (sava)
2013-03-17 01:47:05 COT (-0500)

Looks nice; will see if I can find something better in it. Thanks a lot, Irene.

Have you seen
By: Irene Andersson (irenea)
2013-03-17 01:32:12 COT (-0500)

this paper?

I don’t think it’s stillatus you have here, maybe you can find something else in the japanese study?

The bulb-shaped cells could be ends of hyphae from the margin of the fruitbody.

Created: 2013-03-16 21:08:18 COT (-0500)
Last modified: 2013-03-17 12:37:09 COT (-0500)
Viewed: 79 times, last viewed: 2016-10-28 17:56:02 COT (-0500)
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