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Boletus rex-veris : ウィキペディア英語版 | Boletus rex-veris
''Boletus rex-veris'', commonly known as the spring king bolete, is a basidiomycete fungus of the genus ''Boletus'' found in western North America. The large, edible fruiting bodies known as mushrooms appear under pine trees, generally in May to June. It has a pinkish to brownish cap and its stem is often large and swollen, and the overall colour may have an orange-red tinge. As with other boletes, the size of the fruiting body is variable. ''Boletus rex-veris'' is edible, and may be preserved and cooked. For many years, ''Boletus rex-veris'' was considered a subspecies or form of the porcini mushroom ''B. edulis''. In 2008, a taxonomic revision of western North American populations of this species was published, formally establishing it as a distinct species, ''Boletus rex-veris''.〔 Phylogenetic analysis has shown ''B. rex-veris'' as a member of a clade, or closely related group, with ''B. fibrillosus'', ''B. pinophilus'', ''B. subcaerulescens'', ''Gastroboletus subalpinus'', and ''B. regineus''.〔 ==Distribution and habitat== ''Boletus rex-veris'' is found under pines (''Pinus ponderosa'', ''P. contorta'' subsp. ''murrayana'') and firs (''Abies concolor'' and ''Abies'' species) at elevations of . It is often buried under needle duff and fruits from May to June in California. In Oregon it fruits at lower elevations, and its range continues into Washington, Idaho, and British Columbia.
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