butter bolete造句

• The butter boletes have red or brown caps, yellow pores and stipes that turn blue when cut or bruised in many species, and olive-brown spindle-shaped spores.
• "Butyriboletus regius " was formerly Molecular analysis demonstrated that this and related " butter bolete " species, including " Boletus appendiculatus ", are phylogenetically distinct from " Boletus ", and the new genus " Butyriboletus " was created to contain them.
• The genus was circumscribed in 2014 by mycologists David Arora and Jonathan L . Frank to accommodate " butter bolete " species that were shown by molecular analysis to be phylogenetically distinct from " Boletus " . " Butyriboletus " contains 21 ectomycorrhizal species found in Asia, Europe, North America and north Africa.