Observation 13792: Amanita flavescens (E.-J. Gilbert & S. Lund.) Contu
When: 2007-08-15
Collection location: Dalarna, Sweden [Click for map]
No herbarium specimen

Notes: Photo: Sören Gutén

Proposed Names

63% (3)
Eye3 Eyes3
Recognized by sight: Here’s a big questionmark!
We discussed this one often back in the eighties, and were rather confused. Some people claimed that they were just pale coloured forms of crocea, which made sense because we also found specimen that were coloured more like crocea – something in between. The size was about the same too, the caps usually around 10 cm.
We also had Amanita adnata or Amanita vaginata var. flavescens in mind, but never found out what it really was.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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the three names
By: R. E. Tulloss (ret)
2008-11-07 12:41:08 EST (-0500)

Irene,

The three names you cite were all applied to the type specimen of A. flavescens. Amanita adnata (often said to be a synonym of A. gemmata) was the first name applied to the original Swedish collections of what we now call A. flavescens. The latter epithet was first proposed at the rank of variety by Gilbert and Lundell and typified by the original Swedish collection. The raising of the variety to species rank is due to Dr. M. Contu (who probably misapplied the name to Italian material of A. subnudipes (syn. A. croceavar. subnudipes).

You have probably noticed that subnudipes, crocea, and flavescens are all treated in the key to which I called your attention in the last few days.

The upshot is that adnata sensu Lundell [nota bene], A. vaginata var. flavescens, and A. flavescens all are names that were/are applied to the same collection! Hence, they are all synonyms based on nomenclatural rules. I hope that clarifies (eliminates?) one little problem from the mycological world.

Very best,

Rod Tulloss

P.S. I regret the all the detail work for the Scandinavian Vaginatae presently under discussion on MO are still not on line. The data is embedded in papers written about 15 years ago. My discussion of A. nivalis anatomy is in the protologue of A. populiphila Tulloss & E. Moses (Mycotaxon). I believe that the type studies of A. mortenii and A. groenlandica are included in a paper by RET published in Mycotaxon in 1994. Full citations are to be found in the bibliography of the Amanita Studies site. – R

Created: 2008-11-07 06:52:37 EST (-0500)
Last modified: 2008-11-07 06:52:37 EST (-0500)
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