Observation 48032: Cortinarius cruentoides Soop

When: 2010-06-24

Collection location: Northwood Reserve, Albany, Auckland, New Zealand [Click for map]

Who: Michael W (Michael Wallace)

No specimen available


[admin – Sat Aug 14 02:03:55 +0000 2010]: Changed location name from ‘Northwood Reserve, Albany, Auckland, New Zealand.’ to ‘Northwood Reserve, Albany, Auckland, New Zealand’

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By: Michael W (Michael Wallace)
2010-07-05 02:18:05 CDT (-0500)

After going through my dried specimens I realised I didn’t keep any from this collection so I went back to the location and collected a few fresh specimens, the colour of the young specimens is a deep maroon-red to dark wine-red and I suspect this colour lightens with age to the red-orange to maroon red colour you see in this image, the microscopic characteristics are a good match for Cortinarius vinicolor although these specimens seem to be a bit more robust with a pileus diameter of up to 27mm and a stipe diameter of 3-4mm.

This location is a gold mine regarding the genus Cortinarius and I will definitely be visiting it more often, it seems the diversity of that genus in this particular Leptospermum/Kunzea forest is greater than what I saw in the Nothofagus forest, or maybe I just wasn’t taking as much notice in the Beech forest!

By: Noah Siegel (Noah)
2010-07-04 21:57:27 CDT (-0500)

I don’t know if these are purple enough, the description says “brilliant red-purple, blood red or dark maroon red” these are more red-orange to maroon red.

Also growing with Leptospermum; I know a few things grow with both Nothofagus and Leptospermum

By: Michael W (Michael Wallace)
2010-07-04 19:03:50 CDT (-0500)

The pileus diameter is up to 25mm, the stipe is 40-50mm by 3-4mm.

I have compared this with Cortinarius cramesinus but I don’t think it’s that species, the lamellae in the young specimens of this collection are deep red and concolourous with the pileus, if it was C. cramesinus the lamellae would be yellow to ochraceous.

What makes you doubt Dermocybe purpurata?

how big were these?
By: Noah Siegel (Noah)
2010-07-04 08:58:14 CDT (-0500)

you should also compare with Cortinarius cramesinus

Second thoughts,
By: Michael W (Michael Wallace)
2010-07-04 06:29:11 CDT (-0500)

After taking a closer look at this I now suspect it could be the equally rare Dermocybe purpurata due to the large diameter of the stipe and the attachment of the lamellae which is emarginate with a decurrent tooth, I’ll have to take a closer look at the spores to be sure.

My comment below still stands if it is D. purpurata.

By: Michael W (Michael Wallace)
2010-07-04 00:15:59 CDT (-0500)
considered rare and a species associated with Nothofagus I have added this observation to show that it can also associate with Leptospermum/Kunzea.

Created: 2010-07-04 00:13:46 CDT (-0500)
Last modified: 2014-10-02 23:02:34 CDT (-0500)
Viewed: 89 times, last viewed: 2017-06-07 20:17:46 CDT (-0500)
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