Observation 18622: Mycena (Pers.) Roussel

Notes:
Odor indistinct or weakly fresh-fragrant.
Taste indistinct.
Lamellae white, well-spaced, 2 tiers, attached.
Growing on wood near tanoak and madrone.
Basidia very squat with long sterigmata: Basidium 14.6 μm tall, sterigmata account for 5.6-9.7 μm of this length!
Long, aculeate and occasionally branched or knobbed lamellar cystidia. 41-61 (110) μm long.
Cheilocystidia dense at gill edge, cylindrical or more often aculeate, although some fairly branched and knobbed. 32-41 μm long.
Caulocystidia very knobby-warty, some septate, clamp connections present, amidst cellular stipitipellis.
Pileocystidia quite small, somewhat knobbed. Pilepellis a derm subtended by inflated, brown-pigmented cells.
Spores quite large (especially compared to basidia!). Fairly narrowly elliptical: 11.5 × 5.7 μm. Q = ~ 2.

Images

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Copyright © 2009 Christian F. Schwarz
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Copyright © 2009 Christian F. Schwarz
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Copyright © 2009 Christian F. Schwarz
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Copyright © 2009 Christian F. Schwarz
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Copyright © 2009 Christian F. Schwarz
Cystidia near margin.
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Copyright © 2009 Christian F. Schwarz
Cheilocystidia.
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Copyright © 2009 Christian F. Schwarz
Caulocystidia – most were much knobbier than these.
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Copyright © 2009 Christian F. Schwarz
Spore still attached to basidium – note relative sizes.

Proposed Names

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Created: 2009-02-18 20:15:45 CST (-0600)
Last modified: 2009-02-18 20:15:45 CST (-0600)
Viewed: 49 times, last viewed: 2017-06-05 07:53:30 CDT (-0500)