
This photo of the red-pored Boletus subvelutipes shows the white flesh beneath the cap skin, and the yellow tubes and stem which have instantly turned blue on exposure to air with handling and cutting.
AUREOBOLETUS____auriporus,____innixus,____roxanae
AUSTROBOLETUS____gracilis,____gracilis var. pulcherrimus
BOLETELLUS____chrysenteroides,____pseudochrysenteroides,____russellii
BOLETINELLUS (Gyrodon)___merulioides
BOLETUS____atkinsonii,____auripes,____carminiporus,____clavipes,____gertrudiae,____huronensis,____longicurvipes,____miniato-olivaceus,____miniatopalescens,____nobilis,____nobilissimus,____pallidus,____pinophilus,____pseudo-olivaceus,___rubroflammeus,____rufomaculatus,____sensibilis,____separans,____spadaceus,____speciosus, ____ subtomentosus,____subvelutipes,____variipes,____ vermiculosoides, ____vermiculosus
BUTYRIBOLETUS____brunneus,___frosti,____peckii,____roseopurpureus
CALOBOLETUS____calopus,____inedulis,____roseipes
CHALCIPORUS____piperatoides,____piperatus,____rubinellus
GYROPORUS____castaneus,____cyanescens,____cyanescens var. violatinctus,____purpurinus
HORTIBOLETUS____campestris,____rubellus
LECCINELUM____albellum
LECCINUM____holopus,____luteum,____potteri,____rubropunctum,____rugosiceps,____scabrum,____snellii, ____subleucophaeum,____variicolor,____versipelle,____vulpinum
NEOBOLETUS____luridiformis,___pseudosulphureus
PHYLLOPORUS____boletinoides,____leucomycelinus,____rhodoxanthus
PORPHYRELLUS____indecisus,____nebulosus
RETIBOLETUS____griseus,____ornatipes
RUBROBOLETUS____rhodosanguineus
STROBILOMYCES____confusus,____strobilaceus (floccosus)
SUILLUS____acidus (intermedius),____americanus,_____ampliporus (cavipes)____brevipes,____cavipes (See S. ampliporus),____clintonianus (grevellei)____granulatus (See S. weaverae),____grevillei (See S. clintonianus),____intermedius (See S. acidus)____luteus,____placidus ______punctipes____salmonicolor,____spraguei (pictus), ____weaverae (granulatus)
TYLOPILUS____alboater,____atronicotianus,____badiceps,____balloui,____felleus,____ferrugineus, ___plumbeoviolaceus,____porphyrosporus,____rubrobrunneus,____sordidus,____variobrunneus,____violatinctus
XANTHOCONIUM____affine,____purpureum
XEROCOMELLUS____chrysenteron,____rubellus (fraternus) (See HORTIBOLETUS)
XEROCOMUS____hortonii,____illudens,____morrisii,____sclerotiorum,____tenax