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 Add this item to the list   829952 Original description
   
Remarks (public):Boletus pseudopinophilus is included in Bessette et al (2002, 2007) and in Weber and Smith (1985) as Boletus pinophilus, the European name that, prior to molecular studies, was misapplied in North America not only to this southeastern porcini, but also to the Spring King (B. rex-veris) and to the Rocky Mountain Ruby-capped King (B. rubriceps) in the western United States. Molecular analysis of ITS rDNA data shows Boletus pseudopinophilus to be closely related to, but separate from B. pinophilus, in a strongly supported clade that includes B. subcaerulescens, B. regineus, B. subalpinus and a taxon reported as “Boletus cf. pinophilus” from Oaxaca Mexico, MG919994 (Figure 1). Boletus subcaerulescens (E. A. Dick & Snell) Both, Bessette & A. R. Bessette is very similar, but typically has more vinaceous tones on the pileus and stipe, a pore surface that stains bluish gray when bruised, a northerly distribution and typically grows with spruce and short-needle pines including Scots Pine (Pinus sylvestris), Pitch Pine (Pinus rigida), and Jack Pine (Pinus banksiana). Boletus aurantioruber (E. A. Dick & Snell) Both, Bessette & W. J. Neill has a darker, rusty orange pileus, and a pinkish cinnamon to rusty red or red-brown reticulum. It usually grows associated with two and three needle pines such as Jack Pine (Pinus banksiana) and Pitch Pine (Pinus rigida) and is more northerly in its distribution, typically found in northeastern North America. Boletus separans Peck grows with oak, has a variable colored cap that tends to be more vinaceous to pink when young, and a white, finely reticulated stipe. The European Boletus pinophilus Pilát & Dermek differs in having a darker reddish brown pileus and grows in coniferous or mixed forests in Europe, mycorrhizal with pines (Pinus) or spruce (Picea), but has not been verified to occur North America. 
Description type:Original description 
Description:Medium-sized to large basidiocarps with pinkish brown to red-brown caps, white tubes stuffed with hyphae when young becoming yellow to olive-yellow in age, whitish reticulated stipe darkening to light brown as it ages, and white unchanging flesh. Spores olive-brown in mass, 15.8 x 4.8 (14-18 x 4-6) µm, Q = 3.28. Solitary or scattered on the ground under Slash Pine (Pinus elliottii) and Longleaf Pine (Pinus palustris) along the coastal plains across the southeastern United States from southern Virginia at lower elevations south and west into Texas. 
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