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A revision of the Alpova diplophloeus complex in North America
Jeremy Hayward1, Samuel G Tourtellot2, Thomas R Horton2
1State University of New York College of Environmental Science and Forestry, 1 Forestry Drive, Syracuse, New York 13210 haywardjeremy@gmail.com.
Abstract:
Alpova diplophloeus (Boletales, Paxillaceae) is the only currently recognized Alpova in North America with a brownish peridium, large gleba chambers and which forms ectomycorrhizas with Alnus. However, A. diplophloeus as currently circumscribed is a polyphyletic species, with at least three distinct genetic entities. Using a combination of molecular and morphological characters, we examined the type collections of A. diplophloeus, as well as species synonymized with it, including A. cinnamomeus and Rhizopogon parvisporus. We also examined several other collections of A. diplophloeus complex basidiomata. We describe A. diplophloeus sensu stricto; we also resurrect A. cinnamomeus, synonymized with R. parvisporus and describe a new species, A. concolor, from the complex.
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