Related Experiment Video
Updated: Dec 9, 2025

Visualization of Twitching Motility and Characterization of the Role of the PilG in Xylella fastidiosa
Published on: April 8, 2016
Xerocomellus (Boletaceae) in western North America
J L Frank1, N Siegel2, C F Schwarz3
1Department of Biology, Southern Oregon University, Ashland, OR 97520, USA.
Abstract:
Understanding diversity in the genus Xerocomellus in western North America has been obscured by morphological variability, widespread use of species epithets typified by specimens from Europe and eastern North America, misunderstood phylogenetic relationships, and species complexes. We collected extensively and used genetic and morphological data to establish the occurrence of ten Xerocomellus species in western North America. We generated ITS sequences from five type collections and from vouchered representative collections to clarify our understanding of existing species concepts. We describe three new species (Xerocomellus atropurpureus, X. diffractus, and X. salicicola) and propose two new combinations (X. amylosporus and X. mendocinensis), transfer Boletus coccyginus to Hortiboletus, and provide a dichotomous key to species of Xerocomellus in western North America.
Related Concept Videos
Seedless Vascular Plants
Non-vascular Seedless Plants
Rab Cascades
Adaptations that Reduce Water Loss
Fungal Group Zygomycota
Fungal Phylum Basidiomycota

