Observation 13787: Amanita nivalis Grev.
When: 1993-08-23
Collection location: Umbukta, Norway [Click for map]
No herbarium specimen

Notes: Not a very good picture.. What cannot be seen, is the pale, uniformly grey and convex cap, which is about 4-5 cm. Found in the alpine region with dwarf Salix and Betula nana.

Proposed Names

77% (2)
Eye3 Eyes3
Recognized by sight
28% (1)
Recognized by sight: stocky appearnace, non-white cap, graying veil.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Interesting!
By: R. E. Tulloss (ret)
2008-11-07 12:56:24 CST (-0500)

Thank you for your response, Irene. I will be very interested to see what you find in the future. I’m very glad you started posting on MO.

Rod Tulloss

Rod, I’ve had the same thought
By: Irene Andersson (irenea)
2008-11-07 12:41:18 CST (-0500)

about a possible groenlandica. Not much to do about it now, the collection got lost many years ago. I was also thinking about mortenii as a possible alternative to the pale “fulva”. That one grew in a subalpine habitat not far from the one I’ve called submembranacea.
As you can see, most of the photos are a few years old. I’ll make stronger efforts in the future to save collections.

a thought
By: R. E. Tulloss (ret)
2008-11-07 12:11:16 CST (-0500)

Irene,

Because of the apparently graying universal veil, the cap color[?], and the stocky habit of this species, You might also wish to consider A. groenlandica as a possible determination. The latter has been reported from Greenland, Norway and Siberia, and the habitat is very similar to that of A. nivalis. I believe I have also seen groenlandica in a collection of material from the US state of Alaska. I have collected something VERY like groenlandica on the island of Newfoundland (Canada). Material from Labrador in Canadian herbaria also suggest groenlandica So the species may have circumarctic distribution as do A. regalis and a few other taxa that are familiarly subarctic or alpine in Eurasia. In sect. Vaginatae_, A. mortenii may also have a rather broad distribution in subarctic/alpine areas. I had the pleasure of reviewing a fairly good sample of Greenland Amanita taxa thanks to the efforts of T. Borgen (presently residing in Denmark).

It would be a very interesting project to try to develop a clear picture of which amanitas are circumarctic.

I have really enjoyed your postings. Thank you very much for posting nivalis.

Rod Tulloss

Glad to inspire – at least you had better pictures ;-)
By: Irene Andersson (irenea)
2008-11-07 11:48:15 CST (-0500)

This was meant as a tribute to Ret – and Norway.

For some reason, the norwegian mountains are much more interesting, when it comes to flora and funga, than most of the swedish ones. A better climate – yes, more limestone-rich grounds – yes, and more sheep than reindeers.

you inspired me to post my photo of this rare and interesting species, Irene!
By: Debbie Viess (amanitarita)
2008-11-07 10:25:41 CST (-0500)

Created: 2008-11-07 05:04:49 CST (-0500)
Last modified: 2011-07-11 16:00:36 CDT (-0400)
Viewed: 232 times, last viewed: 2016-11-22 10:40:32 CST (-0500)
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