Observation 115977: Leucoagaricus caerulescens (Peck) J.F. Liang, Zhu L. Yang & J. Xu
When: 2012-08-31
( 2100m)
Herbarium specimen reported

Notes: This was found in a canyon which had lots of moisture and a more tropical environment than the surrounding hills. It has cream to yellow gills and a slightly yellowish cap. The yellow + blue gives it a green color. When damaged it first stains vinaceous red, then turns greenish later. The set of pics where it is somewhat dried out were taken four hours later. When completely dry, both the cap and gills are a dark olive-gray color.

Spores strongly dextrinoid, smooth, 7 – 8 × 4 – 4.5, with a conspicuous hilar appendage and no germ pore. With one oil droplet in the center. Measurements 7 × 4, 7.5 × 4.5, 8 × 4.5, 7 × 4.5.

Basidia 22 × 8.

Pleurocystidia absent.

Cheilocystidia clavate to ovoid, 25 × 9 – 10.

Pileipellis with lightly encrusted terminal elements, 8 micrometers wide.

Herbarium specimen in the Cacoma 2012 bag.

I didn’t realize it was interesting until I had carried it a couple kilometers – looked kind of boring when I found it.

All micrographs are in melzers.

Species Lists

Images

280076
IMG_3912.JPG
280075
IMG_3911.JPG
280077
IMG_3913.JPG
280078
IMG_3914.JPG
280079
IMG_3915.JPG
280080
IMG_9524.JPG
Cheilocystidia 1000x
280081
IMG_9527.JPG
Cheilocystidia 1000x
280082
IMG_9523.JPG
Spores 1000x
280083
IMG_9532.JPG
Spores 1000x
280118
IMG_3779.JPG
280119
IMG_3777.JPG
280120
IMG_3780.JPG
280121
IMG_3782.JPG
280122
IMG_3785.JPG
311321
IMG_4093.JPG
Dried

Proposed Names

14% (6)
Recognized by sight
39% (5)
Recognized by sight: only blueing lepiota that I know
56% (3)
Eye3 Eyes3
Recognized by sight: The yellowish color of the pileus and gills argues against
Based on microscopic features: Spore size matches, no germ pore, pileipellis with lightly encrusted terminal elements, 8 micrometers wide.
Based on chemical features: Blue staining

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
GenBank MF629828
By: Alan Rockefeller (Alan Rockefeller)
2017-09-04 00:13:08 CDT (-0400)
ITS sequence
By: Alan Rockefeller (Alan Rockefeller)
2016-06-26 23:20:51 CDT (-0400)

cattgatGGGTTtGTTGCTGGCTCTCTTGAGCAATGTGCACATCTGTCTTGACTCCATTCATCCACCTGTGCACCTTTTGTAGTCTTTGTTGGAGAAAGTGGCTGTCAGTTGAAAGACTTGGATTTGAGGTTTGCCTAGTGCAAAAAATGTACAGGCTCTCCTCTTGGCCATGATATCTCCAAGAGAGGCTATGTCTTTTGATTATAAACTTTGTATGTTACCAGAATGCATTGGATGGCCTAATGTGCCTATAAAATTTTGTATACAACTTTCAGCAACGGATCTCTTGGCTCTCGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACCTTGCGCTCCTTGGTATTCCGAGGAGCATGCCTGTTTGAGTGTCAGTTATTTCTCATTTCCCTTCAGCTTTTGATTTAAAATCCTGGCTTGTTGGGAATTGGATGTGGAGGTTTTGTTGGTCTTCTTCTGCTAGGTCAACTCCTCTGAAATTCATTAGTGGAACTGTTTGCAATCCACCACAGGTGTGATAATTATCTATGCCACTGGGTTGCTCTCTCCTGTTCTGCTTCTAACTGTCCCATTCTATGTGGACATCCATGACTTGAATACTTGACCTCAAATCAGGTAGGATTACCCGCTGAACTTAAGCATATCAATAAGCGGAGGAAAAGAAACTAACAAGGATTCCCCTAGTAACTGCGAGTGAAGCGGGAAAAGCTCAAATTTGAAATCTGACAGTCTTTGGCTGTCTGAGTTGTAATCTAGAGAAGTGCTGCCCGCGCTGGACCGTgtac

It is strange
By: Dr Migdad Al-Rawi (aboyusif)
2013-07-04 10:54:41 CDT (-0400)

I never seen like that

Else says that
By: Alan Rockefeller (Alan Rockefeller)
2012-11-09 17:29:29 CST (-0500)

Most of the blue/green Lepiotas belong to the Leucoagaricus/Leucocoprinus clade. The 2010 paper by J.F. Liang, Zhu L. Yang & J. Xu supports that view.

Danny…
By: Richard Kneal (bloodworm)
2012-11-09 05:21:00 CST (-0500)

the cheilocystidia and gill color has me leaning towards Lepiota.

Richard
By: Danny Newman (myxomop)
2012-11-09 04:41:25 CST (-0500)

why is it Lepiota and not Leucoagaricus?

Created: 2012-11-06 21:29:27 CST (-0500)
Last modified: 2017-09-04 00:12:37 CDT (-0400)
Viewed: 265 times, last viewed: 2017-09-19 23:53:39 CDT (-0400)
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