Observation 34532: Alnicola Kühner

When: 2010-01-31

Collection location: Point Reyes National Seashore, Marin Co., California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under red alder.

Sorry for all the photos, but no one really posts Naucoria, from anywhere it seems, so I thought I would make up for it a bit…

The first micro-shot is of the gill edge at 400x in Meltzer’s. The cheilocystidia is evident, fusoid-ventricose with elongated acute apecies. Also there was no pleurocystidia obs, the spores are non-dextrinoid, and from 4-spored basidia.

The second micro-shot is of the stipe apex at 400x in KOH. This shows the caulocystidia, here a number of the cystidia are multi-septate. But in the bottom half of the photo there is a cluster of cystidia that are fusoid-ventricose with elongate pointed apecies. And intermixed with these are glose elements also. So these have caulocytidia of different kinds in clusters.

The third micro-shot is of spores on the stipe apex at 1000x in KOH. Here the spores are ellipsoid, pointed, and warted. The spores are 9.96 +/- 0.82 um, width – 5.40 +/- 0.57 um – q : 1.86 +/- 0.27, on 14 spores.

I’ve should have looked for these before. I was always a little confused as how easy it would be to tell a Naucoria from a Galerina, as small mycenoid fungi with ornamented brown spores. But the Naucoria spores are more consistently warted with small regular warts, and Galerina spores are more randomly roughened, so you can tell them apart.

With the multi element caulocystidia, It didn’t look like any Naucoria from Europe are like this. I couldn’t find much in the way of Naucoria info from North America. It makes me feel bad for these pore ignored little guys… no one to care for them…

In trying to look up Naucoria obs. from California, it kinda makes me not want to use the name Naucoria. Lots of stuff was Naucoria in the past, Tubaria, Galerina, Simocybe, Phaeocollybia, and others. Any small brown spored genus seems to have been Naucoria at some point in the past almost. But the only stuff left in the genus now are these small guys, with warted spores under alder or beech. Perhaps it would be better to call them Alnicola, as many have done.

Anyway, here are some unknown, probably undescribed Naucoria from California.


Proposed Names

16% (2)
Recognized by sight
Used references
Based on microscopic features: Brown spores, under alder, spores ellipsoid, pointed, warted.

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= Observer’s choice
= Current consensus


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