Observation 79446: Panaeolina castaneifolia (Murrill) Bon
When: 2011-10-08
Who: Byrain
No herbarium specimen

Notes: Found growing in grass, by time I got to scoping them they were nearly rotted and smelling strongly of rotted fish so not worth saving.

The spores were roughened with a germ pore and no oil drops, the range was 12-15 (16) x 7-10 μ, the average size was 13.87 × 8.28 μ, and the average Q was 1.89. 30 spores were measured, the individual measurements were:

12×8
13×7
13×7
13×8
13×8
13×8
13×8
13×8
13×8
13×8
13×8
13×8
13×8.5
14×8
14×8
14×8
14×8
14×8
14×8.5
14×8.5
15×8
15×8
15×9
15×9
15×9
15×9
15×9
15×9
15×9
15×10

To improve this observation, I need to measure the epicutis (Possibly an German word?), 25-35 µm for Panaeolina castaneifolia, 15-25 for P. foenisecii. Sadly, I haven’t a clue what an epicutis is, google isn’t helping, nor has any mycological glossary I have looked at yet.

Images

174377
174378
174379
Spore from gill, image created with two stacked photos with combineZP to emphasize the ornamentation.
1000x
Mounted in H2O
174380
Spore from gill
1000x
Mounted in KOH
1μ divisions
174381
Cheilocystidia
1000x
Mounted in H2O
1μ divisions
174382
Pileipellis
1000x
Mounted in H2O
1μ divisions

Proposed Names

92% (2)
Eye3 Eyes3
Recognized by sight: Dark colored cap, robust stature.
Used references: Gerhardt’s panaeolus key
Based on microscopic features: Spores without oil drops, width no more then 10 μ, roughened ornamentation like P. foenisecii, flask shaped cheilocystidia.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Thanks Riverdweller
By: Byrain
2011-10-13 04:12:16 CDT (-0400)

Do you think the epicutis is visible in my Pileipellis shot? If so, where does it start and end?

epicutis
By: Britney Ramsey (Riverdweller)
2011-10-13 03:46:20 CDT (-0400)

epicutis
the outermost layer of the pellis (“cuticle”), properly called the suprapellis
suprapellis
the outermost layer of the pellis (excluding universal veil), sometimes called epicutis, the suprapellis may be undifferentiated (cells not distinct from those of underlying flesh), derm (cells arranged perpendicularly to surface), or cutis (cells arranged more or less parallel to surface)

Created: 2011-10-13 03:16:29 CDT (-0400)
Last modified: 2011-10-20 23:41:55 CDT (-0400)
Viewed: 214 times, last viewed: 2016-10-25 16:28:00 CDT (-0400)
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