scholarly journals Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America

2011 ◽  
Vol 98 (2) ◽  
pp. 175-188 ◽  
Author(s):  
Steven D. Leavitt ◽  
Leigh Johnson ◽  
Larry L. St. Clair
Keyword(s):  
North America ◽  
Species Delimitation ◽  
Western North America ◽  
Diverse Communities

A new species of Lactarius sect. Deliciosi (Russulales, Basidiomycota) from western North America

Botany ◽  
2014 ◽  
Vol 92 (10) ◽  
pp. 767-774 ◽  
Author(s):  
Jorinde Nuytinck ◽  
Joseph F. Ammirati
Keyword(s):  
Phylogenetic Analysis ◽  
North America ◽  
Pacific Northwest ◽  
Species Delimitation ◽  
Careful Study ◽  
Western North America ◽  
Bright Orange ◽  
The Pacific ◽  
A New Species ◽  
Reddish Orange

Although Lactarius sect. Deliciosi (Fr.) Redeuilh, Verbeken & Walleyn (syn. Lactarius sect. Dapetes) is a readily identifiable group in the field, it is exceedingly difficult to correctly identify species with orange to reddish orange latex. A lack of careful study of these species in North America in general, and the Pacific Northwest more specifically, makes species identification often impossible. One common undescribed Pacific Northwest species, which begins fruiting rather early in the season, is described here as Lactarius aestivus sp. nov. It is found in conifer forests dominated by Abies Mill. and Tsuga Carrière, and is characterized by bright orange latex and zonate, bright to pale orange pileus that only rarely stains greenish. A phylogenetic analysis based on ITS sequences supports the species delimitation.

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