Observation 193209: Pleurotus dryinus (Pers.) Kum.
When: 2014-12-11
Who: zaca
No herbarium specimen

Notes: Growing on a living tree (oak).

Images

491898
1st group
491899
1st group
491900
1st group
491901
Habitat-1
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Habitat-2
491903
2nd group
491904
2nd group
491905
2nd group
492384
Microscopy: Gill edge and Spores.
493424
Microscopy: Pileipellis.

Proposed Names

86% (1)
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Recognized by sight

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Comments

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Hi Walt,
By: zaca
2014-12-16 11:14:15 PST (-0800)

Thanks for your comment, from which I conclude that maybe the id of these specimens was a bit precipitate. At first I made no ideia what it could be. When I saw the spores, looked very similar to those of Pleurotus and searching for similar photos I end up with P dryinus. The dimensions are correct, but it seem that that species has more irregularly shaped spores than those observed. Regarding the morphology, the yellow colour is present at the gills and also appeared at the border of stem when cutted. On the other hand, these were found after two week without rain, so they looked a bit too dried.
I will try to go back to microscopy to observe further details and for now I upload some photos from the cuticle obtained before.
Thanks again and best regards,
zaca

Zaca
By: walt sturgeon (Mycowalt)
2014-12-15 14:44:34 PST (-0800)

I am not familiar with the species you have photographed. It reminds me of Neolentinus or Lentinus.

http://mushroomobserver.org/images/320/439568.jpg

This is our Pleurotus dryinus but a bit more yellow than normal. It has a partial veil which soon disappears and the cap can have a glazed appearance.

So,
By: zaca
2014-12-14 07:46:26 PST (-0800)

what do you call these in North America?

Really different
By: walt sturgeon (Mycowalt)
2014-12-13 17:15:43 PST (-0800)

Than what passes for this species in North America.

Microscopy added.
By: zaca
2014-12-13 13:42:43 PST (-0800)

Average dimensions of spores:
Me = 12.4 × 4.3 µm ; Qe = 2.9

Created: 2014-12-11 13:01:01 PST (-0800)
Last modified: 2015-12-05 10:03:30 PST (-0800)
Viewed: 61 times, last viewed: 2016-12-03 15:57:51 PST (-0800)
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