Observation 180022: Cortinarius palatinus Harrower
When: 2014-09-19
( 1800m)
No herbarium specimen

Notes: Under oak.

I viewed several scalp sections of the stipe and saw two structures that might be caulocystidia. If this has caulocystidia, it is rare.

Spores 10.5 – 12.6 × 6.5 – 8.6 × 5.7 – 9.5 µm, roughly ornamented, inequilateral, ellipsoid in face view and mango shaped in side view.

10 [11.1 ; 11.6] 12.6 × 6.5 [7.3 ; 7.7] 8.6 µm
Q = 1.3 [1.5 ; 1.6] 1.8 ; N = 30 ; C = 95%
Me = 11.3 × 7.5 µm ; Qe = 1.5

11.72 7.07
11.65 8.00
11.14 7.95
11.82 8.30
10.27 7.64
10.58 7.65
12.43 7.60
11.34 8.10
11.60 7.94
12.93 6.98
10.90 7.38
11.15 7.40
12.67 8.18
11.38 7.66
11.16 8.24
10.36 8.08
11.10 7.25
10.58 6.37
10.93 6.86
10.82 7.15
10.76 7.37
11.76 7.86
11.43 7.56
11.26 7.16
10.78 8.14
11.49 6.91
10.98 6.18
10.71 7.15
11.88 7.95
12.09 7.38

Images

460020
DSC_7832-001.JPG
Copyright © 2014 Thalia Davidoff
460026
DSC_7833-001.JPG
Copyright © 2014 Thalia Davidoff
460027
DSC_7838-001.JPG
460029
DSC_7852-001.JPG
Copyright © 2014 Thalia Davidoff
465718
IMG_1309.pixi.jpg
Spores 1000x
465723
IMG_1307.JPG
Suspected caulocystidia
465724
IMG_1308.JPG
Suspected caulocystidia

Proposed Names

79% (1)
Eyes3
Based on microscopic features: Lack of caulocystidia and size of spores

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Send me your address
By: Alan Rockefeller (Alan Rockefeller)
2014-10-06 15:58:34 EDT (-0400)

and I’ll drop it in the mail. A lot of Costa Rica stuff turns up in Mexico.

In that case
By: Emma Harrower (eharrower)
2014-10-06 15:40:10 EDT (-0400)

it’s a new species I’m describing. I have collections from high elevation oak forests in Costa Rica. And now I know its growing in Mexico as well. C. violaceus has caulocystidia.

Caulocystidia absent
By: Alan Rockefeller (Alan Rockefeller)
2014-10-06 15:21:37 EDT (-0400)

In that case, this has no caulocystidia. I examined roughly a dozen scalp sections taken just below the gills.

Placement of caulocystidia
By: Emma Harrower (eharrower)
2014-10-06 14:15:49 EDT (-0400)

They are found on the stipe under the gills, if they are to be found at all. They are bottle-shaped, like what you see in the gills. What is the host?

Spores are 10.5 – 12.6 × 6.5 – 8.6 × 5.7 – 9.5 µm
By: Alan Rockefeller (Alan Rockefeller)
2014-10-06 13:58:54 EDT (-0400)

I checked several stipe scalp sections for caulocystidia, and only saw two structures that may be caulocystidia. If those are caulocystidia, it is rare. The context is dark violet, like the surface, at least in the dried collection. I checked both the stipe and the pileus. Let me know if any further microscopy would be helpful.

Does it have
By: Emma Harrower (eharrower)
2014-10-01 11:39:21 EDT (-0400)

caulocystidia? Also, what are the spore dimensions? Also, what color is the flesh?

Created: 2014-09-24 14:00:13 EDT (-0400)
Last modified: 2015-12-17 13:45:23 EST (-0500)
Viewed: 72 times, last viewed: 2016-05-28 13:35:22 EDT (-0400)
Show Log