Observation 154376: Mycena sect. Fragilipedes (Fr.) Quél.
When: 2013-11-23

Notes: Growing in soil under conifers. Odor a bit raphanoid, didn’t taste it.

Spores from fresh specimen: 11-14 × 6-8; from spore print (different specimen) 9.5-12.5 × 5.5-6.5.

Basidia 2- and 4-spored, ~32+8 x 9. Cheilocystidia mucronate or with 0-4 fingers, some of which branch into two. Ch. size ~45 × 20, fingers 5-15 microns long. No obvious pleurocystidia. Hyphae of the pileipellis forming dense mass (gelatinized?). Hyphae of the cortical layer of the stipe diverticulate, clamps observed. Caulocystidia numerous, variously shaped.


The only Fragilipedes species with such large spores seems to be the little known Mycena griseoconica, but its cap is “bluish grey when young”, and I couldn’t find any info about its caulocystidia. Another non-lignicolous candidate is Mycena robusta, but its spores are smaller (9-11 × 5.5-8 per Maas G.) and cheilocystidia have longer necks.

Species Lists

Images

389617
389618
389619
389620
Basidia, spores, cheilocystidia.
389621
Basidia, cheilocystidia.
389622
Basidia, cheilocystidia.
389623
Cheilocystidia.
389624
Cheilocystidia.
389625
Basidia, cheilocystidia.
389626
Hyphae of the pileipellis.
389627
Hyphae of the pileipellis.
389628
Caulocystidia.
389629
Caulocystidia, spores.
389630
Caulocystidia.
389631
Diverticulate hyphae in stipitipellis, spores.

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Created: 2013-12-08 04:21:56 EST (-0500)
Last modified: 2013-12-08 04:22:06 EST (-0500)
Viewed: 27 times, last viewed: 2016-10-29 00:42:24 EDT (-0400)
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