Rank: Group or Clade
Name: Pisolithus arhizus group
The name Pisolithus arhizus group is intended to cover species of the genus Pisolithus which have been called Pisolithus arhizus but which will (or likely will) be split based on phylogenetic analysis. See Else’s Comments on Observation 214147.
Should then limit to only collections in North America, Europe or found in exotic pine plantations in Africa where both the potential hosts are known, include oaks or pines and without any other potential hosts like Cistus, Eucalyptus or other present.
Or we could limit it to taxa around P. arhizus, “species 4” and “species 5” from ‘Phylogeography of the ectomycorrhizal Pisolithus species as inferred from nuclear ribosomal DNA ITS sequences’. http://onlinelibrary.wiley.com/...
These 3 species form a nice genetic group and are the only ones that included in that study that occur with pines or oaks. Although “species 5” is an Asian species that also occurs with Eucalyptus while “species 4” is European found with oak and pine in Mediterranean countries. I wonder if this pattern would continue to hold with a more comprehensive genetic tree.
to distinguish chocolate-spored (== non-Eucalyptus) observations.
Created: 2015-08-31 09:56:23 CDT (-0400) by Joe Cohen (Joseph D. Cohen)
Last modified: 2017-10-05 01:10:30 CDT (-0400) by Jacob Kalichman (Pulk)
Viewed: 142 times, last viewed: 2018-06-22 14:33:10 CDT (-0400)