Observation 129788: Panaeolina foenisecii (Pers.) Maire
When: 2010-06-01
Collection location: Washington, USA [Click for map]

Notes: From a bag labeled “MO # 59232”, mushroomexplorer collection. Micrographs show spores, basidia and chilocystidia and have 600x magnification.

Spore measurements:

12.1 [13.2 ; 13.6] 14.7 × 7 [7.8 ; 8.2] 9 µm
Q = 1.5 [1.6 ; 1.7] 1.9 ; N = 30 ; C = 95%
Me = 13.4 × 8 µm ; Qe = 1.7

13.66 7.95
12.75 8.52
13.74 8.50
13.35 8.06
14.34 8.41
14.74 8.49
13.62 8.69
12.48 7.54
12.57 7.04
12.42 7.22
14.16 8.45
12.89 7.82
13.23 8.05
12.77 7.17
13.11 6.92
13.20 7.83
12.63 8.13
13.60 8.57
13.57 7.81
13.70 7.95
14.09 8.74
13.95 8.35
12.38 7.77
13.89 8.27
14.31 7.81
13.05 8.37
14.25 7.69
12.99 8.58
12.79 7.58
13.86 8.67

Images

314121
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313946
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313947
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313948
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313949
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313950
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313951
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313952
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314085
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Cheilocystidia 400x
314086
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Epicutis cross section 400x
314087
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Epicutis cross section 400x
314088
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2 and 4 spored basidia 400x
314089
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Epicutis scalp section 400x
314150
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314151
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314152
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Proposed Names

92% (2)
Eye3 Eyes3
Based on microscopic features: Spores roughened and with oil drops

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Thanks!
By: Byrain
2013-03-03 21:21:39 CST (-0500)

That is consistent with P. foenisecii and not with the P. castaneifolia description nor the observations I am calling P. castaneifolia which has wider epicutis cells, consistently 4-spored basidia, and spores mostly without oil drops.

Microscopic features
By: Alan Rockefeller (Alan Rockefeller)
2013-03-03 19:13:53 CST (-0500)

85% of the basidia are 4 spored and 15% are 2 spored. The size of the elements of the epicutis are 22 – 31 × 18 – 26. The epicutis is thin, just one layer of cells.

Alan
By: Byrain
2013-03-03 13:05:26 CST (-0500)

Cool oil drops, did you see if there was 2-spored basidia or only 4-spored? How about the epicutis size?

Created: 2013-03-03 08:41:17 CST (-0500)
Last modified: 2016-04-12 19:19:44 CDT (-0400)
Viewed: 215 times, last viewed: 2017-04-02 22:35:58 CDT (-0400)
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