Name: Hygrophoropsis aurantiaca (Wulfen) Maire
Most Confident Observations:
Copyright © 2021 Drew Henderson (Hendre17)
Copyright © 2015 Joe Soeller (slephy)
Copyright © 2009 Shane Marsh (Mushane)
Copyright © 2020 Eva Skific (Evica)
Version: 8
Previous Version 

First person to use this name on MO: Nathan Wilson
Editors: Joseph D. Cohen, Terri Clements/Donna Fulton, webmaster

Notes on Taxonomy: [Edit]

In the western US, there may well be a couple of species hiding under this one name.

There are some pretty common color variations like in this observation. There also seems to be some common size extremes.

In addition, a few years back I found a Hygrophoropsis with a spermatic odor. I’ve done a little informal checking since then and is seems like the smaller brighter ones are more likely to have this features and the larger and browner ones don’t. I’d be interested in getting more data on this. I’ll also add a comment to the name page.

The only other Hygrophoropsis that I find commonly referred to is H. morganii (= H. olida) which has a distinctive sweet odor. Fungi of Switzerland, Vol. 3 has photos of both H. aurantiaca and H. morganii.

PS See a phylogenetic ITS tree here: indicating that there are a half dozen or so undescribed taxa in the H. aurantiaca group including several in western North America and several in eastern North America. The taxon was described from the UK.

See also: See “The Hygrophoropsis aurantiaca complex” by Geoffrey Kibby, 2012:

Descriptions: [Create]


Add Comment
nice work, Sir!
By: Geoff Balme (geoff balme)
2015-11-11 20:45:10 CST (+0800)

Thank you for the head’s up!

Classification info
By: Joseph D. Cohen (Joe Cohen)
2015-11-11 20:35:57 CST (+0800)


One way to get classification information for an MO Name or Observation is to follow the Mycobank link.
(That link lands you on the result of a Mycobank search for the binomial. If there’s only one hit, scroll down to Classification. If there are multiple hits, click on one, then scroll to Classification.)
(I’ve now added the information to MO for this taxon.)

— Joe

By: Christian (Christian Schwarz)
2015-10-09 02:05:38 CST (+0800)

Hygrophoropsidaceae, in the Boletales

what’s the family for this genus?
By: Geoff Balme (geoff balme)
2015-10-09 01:17:02 CST (+0800)
Number of users interested in this name: 0