Observation 17491: Russula Pers.
When: 2009-01-27
Herbarium specimen reported

Notes: Cap pale, cream colored with dull pinkish blotches at center. Slightly lubricious (possibly viscid when fresh). Cap KOH negative, FeSO4 negative.

Lamellae white, abruptly adnexed. No lamellulae Light pink in ~15 seconds in 3% KOH.

Stipe off-white, nearly smooth. Fairly firm. KOH negative, gray-green to darker green in FeSO4.

Taste acrid, odor mild.

Spores: 8 × 6 μm. Finely, but somewhat densely spotty-reticulate. Reticulae incompletely connected.

Basidia rather fat. Cheilocystidia mucronate.
Pileocystidia narrowly cylindrical-stangulate, negative in sulphovanillin.

[admin – Sat Aug 14 02:07:05 +0000 2010]: Changed location name from ‘UCSC’ to ‘University of California Santa Cruz, Santa Cruz Co., California, USA

Images

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Copyright © 2009 Christian F. Schwarz
35315
Copyright © 2009 Christian F. Schwarz
35316
Copyright © 2009 Christian F. Schwarz
Basidia in Melzer’s reagent.
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Copyright © 2009 Christian F. Schwarz
Pileocystidia in sulphovanillin.
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Copyright © 2009 Christian F. Schwarz
Spores at 1000x in Melzer’s reagent.
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Copyright © 2009 Christian F. Schwarz
Gray-green reaction of stipe base in FeSO4.

Proposed Names

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Recognized by sight

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Created: 2009-01-28 09:24:44 PST (-0800)
Last modified: 2011-03-29 12:12:16 PDT (-0700)
Viewed: 40 times, last viewed: 2016-07-27 17:31:46 PDT (-0700)