Observation 195544: Resupinatus alboniger (Pat.) Singer
When: 2015-01-04
No herbarium specimen

Notes: Growing on hardwood log, no stem.

Cap – Black, blue-violet tints. Largest cap is about 1 cm across. Cap tears easily almost jelly-like. Flesh black, cap is very thin. Clam-shell shape. Smaller caps are gray with lighters edges and lighter edges on gills. Some gills radiate from connection point and some radiate from center. widely spaced gills with short gills.

Spore Print – white

UPDATE on Spore Size: I used an Lignin Pink/Acid Fushin Double Stain(with GAA, lactic acid & phenol) which gave better contrast although the outer spore layer is still clear. I was able to measure 20 spores and get better spore size estimates.

[20/1/1] L (5.3-) 6.0 – 7.0 (-7.5) μm x W (2.4-) 2.7 – 3.8 (-3.9) μm, (L = 6.5 μm, W =3.2 μm), Q (1.57-) 1.81 – 2.32 (-2.52), Q=2.05 cylindric


see above Spore Size – average of 10 spores
L = 6.8 μm, W = 3.5 μm, Q = 1.95, Elongate. ( I could see some double spores, I will try again on evaluating spores.)

In microscope photos, the darker pieces are cap surface. Lighter pieces are gill material. Much gelatinous material can be seen.

Images

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1000 x
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100 x
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400 x
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1000X – 1 dev = 1 micron Double Stain
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1000X – 1 dev = 1 micron Double Stain
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1000X – 1 dev = 1 micron – Double Stain

Proposed Names

28% (1)
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Used references: internet

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2015-01-04 21:17:54 PST (-0800)
Last modified: 2015-01-05 22:02:21 PST (-0800)
Viewed: 66 times, last viewed: 2016-11-27 10:26:29 PST (-0800)
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